[Event "Marshall Chess Club IM 2020"]
[Site "New York"]
[Date "2020.02.27"]
[Round "1"]
[White "Sarkar, Justin"]
[Black "Hallaeva, Bahar"]
[Result "1-0"]
[ECO "C67"]
[WhiteElo "2373"]
[BlackElo "2170"]
[Annotator "TA"]
[PlyCount "95"]
[EventDate "2020.02.27"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 20,95,21,14,19,15,16,19,39,27,28,31,31,24,21,17,19,20,17,17,22,19,27,19,
31,29,42,0,0,0,0,0,0,0,334,327,654,636,548,466,460,452,557,556,551,544,497,472,
739,628,758,754,846,658,802,684,864,735,740,730,720,729,918,849,7154,6287,
29989,1448,1341,1155,1309,1115,925,865,1450,1354,29987,29988]} 1. e4 e5 2. Nf3
Nc6 3. Bb5 Nf6 4. O-O Nxe4 5. Re1 Nd6 6. Nxe5 Nxe5 7. Rxe5+ Be7 8. Bf1 O-O 9.
d4 Bf6 10. Re1 Nf5 11. c3 d5 {C67: Ruy Lopez: Berlin Defence: 4 0-0 Nxe4.} 12.
Nd2 {[%cal Bb1d2,Bd2f3,Bf3e5][%mdl 32]} Nd6 13. Nf3 Bg4 {The position is equal.
} 14. h3 Bh5 {[#]} 15. Bf4 $146 ({Predecessor:} 15. Bd3 Re8 16. Rxe8+ Qxe8 17.
Bf4 Qe6 18. g4 Bg6 19. Bxg6 hxg6 20. Bxd6 Qxd6 21. Qd2 Re8 22. Re1 Re4 23. Kg2
c6 24. Qd3 Qe6 25. Re3 {1/2-1/2 (25) Stecyk,J (2000)-Walther,H (2164) Arosa
2006}) 15... Qd7 16. g4 Bg6 17. Ne5 Qd8 $1 18. Qb3 c6 $1 19. Nxg6 {[%mdl 64] 
[#] Overworked Piece} fxg6 20. Re6 Be7 21. Bg3 $36 {[%mdl 2048] White wants to
play Rae1. White has some pressure.} Qd7 22. Rae1 Rf7 $1 23. Bxd6 Bxd6 24. c4
Raf8 25. cxd5 c5 26. Qb5 {aiming for Qxd7.} Qd8 $2 {[%mdl 8192] White leaves
nothing to chance now.} (26... Qc7 $11 27. dxc5 Bxc5) 27. dxc5 $18 Bh2+ $2 (
27... Be7 28. d6 Bh4) 28. Kxh2 Rxf2+ 29. Bg2 Qxd5 {[%csl Gf2][%cal Rd5g2]} 30.
R6e4 Kh8 31. R1e2 h6 32. Rxf2 Rxf2 33. Qc4 Qd8 {[#]} (33... Qxc4 $142 34. Rxc4
Rxb2) 34. Qd4 $1 Qf8 {Threatens to win with ...Qf3.} 35. Kg3 Rc2 36. b4 Qf7 37.
Rf4 Qe7 38. Rf2 Qe1 39. a3 Ra2 40. Bf1 Rxa3+ 41. Kg2 {Black must now prevent
Rf8+.} Qe7 42. Bc4 {White wants to mate with Rf7.} Re3 43. Rf8+ (43. Rf7 $142
Re2+ 44. Kf3 Qe4+ 45. Qxe4 Rxe4 46. Kxe4 Kh7 47. Rxb7 h5 48. g5) 43... Kh7 44.
Bg8+ Kh8 45. Be6+ Qxf8 46. Qxe3 Qf6 47. Bd5 {White threatens Qe8+ and mate.}
Qb2+ 48. Qf2 {Accuracy: White = 87%, Black = 45%.} 1-0

[Event "Marshall Chess Club IM 2020"]
[Site "New York"]
[Date "2020.02.27"]
[Round "1"]
[White "Lund, Silas"]
[Black "Noboa Silva, Kevin"]
[Result "0-1"]
[ECO "E59"]
[WhiteElo "2340"]
[BlackElo "2329"]
[Annotator "TA"]
[PlyCount "110"]
[EventDate "2020.02.27"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 21,110,8,16,0,24,0,16,8,49,41,60,62,58,58,63,64,75,63,64,20,115,104,113,
101,111,50,54,54,22,29,45,32,134,93,110,75,185,196,205,204,200,186,177,183,265,
118,115,120,140,81,247,8,109,-453,-15,-78,-28,-747,-84,-88,0,0,0,-18,70,65,275,
2,5,-81,-93,-90,-86,-87,-81,-81,-79,-182,-70,-100,-102,-100,-100,-100,-85,-221,
-225,-513,-494,-489,-424]} 1. d4 e6 2. c4 Nf6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6.
Nf3 c5 7. a3 Bxc3+ 8. bxc3 dxc4 9. Bxc4 Qc7 10. Ba2 Nc6 11. O-O b6 12. Bb2 {
is the legacy move (12.Re1). E59: Nimzo-Indian: Rubinstein: Main Line: 7...Nc6
8 a3 Bxc3 9 bxc3 dxc4.} Ba6 13. Re1 Rad8 14. e4 {The position is equal.} e5 {
[#]} 15. Qc2 $146 ({Predecessor:} 15. d5 Ne7 16. c4 Ng6 17. g3 Bc8 18. Nd2 h5
19. Bb1 h4 20. Nf1 Qd7 21. Bc1 {1-0 (65) Ibragimov,I (2579)-Akopian,V (2660)
Kazan 2001}) 15... c4 16. Qa4 Qc8 17. Rad1 ({Reject} 17. Nxe5 Nxe5 18. dxe5 Ng4
$17) ({Much worse is} 17. Bxc4 Bxc4 18. Qxc4 Nxd4 $15) (17. dxe5 b5 $11) 17...
b5 18. Qc2 Rfe8 19. Bc1 Nd7 20. Nh4 Nf8 (20... b4 $11) 21. d5 $16 Na5 22. Nf5
Nb7 23. Re3 (23. Be3 $16) 23... Nd6 $14 24. a4 Nxf5 25. exf5 Qc5 26. axb5 Bb7 (
{Black should try} 26... Bxb5 $14 27. Ree1 Rxd5) 27. Rg3 Rxd5 28. Re1 Rd6 (
28... Qxb5 $16 29. Rg4 Rc8) 29. Qa4 $1 $18 Qc8 30. Bxc4 Qxf5 31. Qxa7 Rd7 32.
Qe3 Ng6 (32... Ne6 $142 33. Be2 Red8) 33. b6 (33. Bf1 $18) 33... Red8 $16 34.
Be2 Qc2 35. c4 (35. h4 $142) 35... Rd4 $2 (35... Rd1 $16 {might work better.}
36. Bxd1 Rxd1) 36. f3 $2 ({White has to play} 36. Qc3 $1 $18 {[%cal Rc3c2]}
Qxc3 37. Rxc3) 36... Ba6 (36... f6 $11) 37. Bf1 $2 {[%mdl 8192]} (37. Rg4 $1
$16 {keeps the pressure on.}) 37... Bxc4 $2 (37... Rd1 $1 $19 {[%cal Rd1e1]
Strongly threatening ...Rxe1.} 38. Ba3 Rxe1 39. Qxe1 Rd1) 38. Bxc4 (38. Qf2 $1
$11 {keeps the balance.} Qxf2+ 39. Kxf2 Bxf1 40. Kxf1) 38... Rxc4 39. Qa3 $2 {
[%mdl 8192] [#]} (39. Rg4 $11) 39... Ra4 $2 (39... Rd1 $1 $19 {[%cal Rd1e1]
[%mdl 512] is more deadly.} 40. Qe3 Rxe1+ 41. Qxe1 Qxc1 42. Qxc1 Rxc1+ 43. Kf2
Nf4) 40. Qb2 $17 Qc5+ (40... Qxb2 $17 41. Bxb2 f6) 41. Be3 $11 Qa5 $40 {
[%cal Ra5e1][%mdl 128] Black mounts an attack.} 42. Rb1 {Threatens to win with
b7.} Ra2 (42... Ra3 $1 $11 43. Qc1 Rc3) 43. Qc1 $1 $14 Ra4 $2 (43... Nf4 $1 $14
44. Kh1 (44. Bxf4 exf4 45. b7 Qa7+ 46. Kh1 fxg3 $11) 44... g6) 44. b7 $2 (44.
h3 $18) 44... Rb4 $11 {[%cal Ba4b4,Bb4b7,Bb7d7][%mdl 32]} 45. Ra1 (45. h3 $11 {
remains equal.} Rxb1 46. Qxb1) 45... Qd5 $17 46. Ra8 {And now Rxd8+ would win.}
Rxb7 47. Rxd8+ Qxd8 48. Rg4 Rd7 49. Qc2 {[#]} (49. Kf2 $17) 49... Rc7 ({
Black should play} 49... Nf4 $1 $19 {[%mdl 512] ...h5 is the strong threat.}
50. h4 (50. Bxf4 Rd1+) 50... h5) 50. Qd2 Qxd2 51. Bxd2 Rc2 52. Be3 Re2 53. Bc5
{[#]} (53. Re4 $17) 53... Nf4 $1 $19 {[%cal Rf4d3] Hoping for ...Nd3.} 54. g3
$2 (54. Kf1 Ra2 55. Be3) 54... Re1+ 55. Kf2 Nd3+ {[%mdl 64] Double Attack.
What a fight! Accuracy: White = 39%, Black = 47%.} 0-1

[Event "Marshall Chess Club IM 2020"]
[Site "New York"]
[Date "2020.02.27"]
[Round "1"]
[White "Cezila Jr, Rubens"]
[Black "Prilleltensky, Matan"]
[Result "1-0"]
[ECO "D02"]
[WhiteElo "2299"]
[BlackElo "2097"]
[Annotator "TA"]
[PlyCount "91"]
[EventDate "2020.02.27"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 10,91,0,0,0,0,20,6,23,18,18,-8,4,0,0,-2,0,-32,0,0,14,25,19,0,0,0,0,0,0,
0,27,13,59,52,70,45,55,19,19,19,15,8,54,52,57,37,41,5,69,36,76,14,76,76,76,65,
85,85,92,97,200,179,191,122,125,125,244,203,275,274,481,126,1111,1089,1648,
1562,29987,29988,29988,29989,29989,29990,29990,29991]} 1. Nf3 d5 2. g3 Nc6 3.
d4 Bf5 4. Bg2 Nf6 5. c3 e6 6. O-O Be7 {D02: 1 d4 d5 2 Nf3 sidelines, including
2...Nf6 3 g3 and 2...Nf6 3 Bf4.} 7. Nbd2 Ne4 8. Qb3 {[#]} a6 $146 {The
position is equal.} ({Predecessor:} 8... Na5 9. Qa4+ c6 10. Ne5 Nxd2 11. Bxd2
f6 12. c4 Nxc4 13. Nxc4 b5 14. Qa6 bxc4 {0-1 (36) Lupu,M (2458)-Kacheishvili,G
(2556) Trignac 2001}) 9. Nxe4 Bxe4 10. Bf4 Rb8 11. h4 h6 12. h5 O-O 13. Bh3
Bxf3 14. exf3 Bg5 {Threatens to win with ...Bxf4.} 15. Be5 $1 Bf6 16. Bxf6 Qxf6
17. f4 Na5 18. Qc2 Nc4 19. Rfe1 Rfe8 20. Bf1 b5 21. a4 Rec8 22. axb5 axb5 23.
b3 Nd6 24. b4 Ra8 25. Bd3 Re8 26. Qe2 Nc4 27. Bxc4 bxc4 28. Qc2 Rec8 (28... Qf5
$11 29. Qxf5 exf5) 29. Kg2 c6 30. Ra4 ({White should play} 30. Ra5 $16) 30...
Rxa4 (30... Qf5 $1 $11 31. Qxf5 exf5) 31. Qxa4 $11 {[%mdl 4096] Endgame KQR-KQR
} Qd8 32. Qa6 Rc7 33. Ra1 Rc8 34. Ra5 Qe8 (34... Qd7 $16) 35. Rc5 $1 $18 Ra8 {
[#]} 36. Qb7 ({Don't take} 36. Qxc6 $6 Qxc6 37. Rxc6 Ra3 $14) (36. Qb6 $1 $18)
36... Qc8 $16 37. Qe7 Qf8 (37... e5 $16 {is a better defense.}) 38. Qd7 Qc8 {
[#]} 39. Qd6 $1 ({Not} 39. Qxc6 Qxc6 40. Rxc6 Ra3 $14) 39... e5 $2 (39... Qf8
40. Qxc6 (40. Rxc6 Qxd6 41. Rxd6 Kf8 $11) 40... Qe8 41. Qxe8+ Rxe8) 40. Qxe5 $2
(40. Rxc6 $18 {and White stays clearly on top.} Qg4 41. Qxe5) 40... Ra3 $2 {
[%mdl 8192] A mistake that costs the game.} (40... Qd7 $16) 41. b5 $18 {
[%cal Bb4b5,Bb5c6][%mdl 32]} Rxc3 42. bxc6 Qg4 43. Qxd5 {White mates.} Rxg3+
44. fxg3 Qe2+ 45. Kh3 Qf1+ 46. Qg2 {Accuracy: White = 70%, Black = 46%.} 1-0

[Event "Marshall Chess Club IM 2020"]
[Site "New York"]
[Date "2020.02.27"]
[Round "1"]
[White "Bonin, Jay"]
[Black "Nestorovic, Nikola"]
[Result "1/2-1/2"]
[ECO "E10"]
[WhiteElo "2258"]
[BlackElo "2469"]
[Annotator "TA"]
[PlyCount "85"]
[EventDate "2020.02.27"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,85,30,31,33,68,66,64,67,56,24,26,36,30,51,34,30,27,8,22,7,7,2,8,0,8,0,
0,0,0,0,9,10,10,0,0,0,0,0,0,0,0,0,0,-16,-7,-12,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. d4 Nf6 2. Nf3 e6 3. c4 a6 4. Bg5 d5 5. e3
dxc4 6. Bxc4 {E10: Blumenfeld Gambit.} b5 7. Be2 c5 8. O-O {[#] White is
slightly better.} Bb7 $146 ({Predecessor:} 8... Nbd7 9. Nbd2 Bb7 10. Rc1 Rc8
11. a4 c4 12. axb5 axb5 13. Ne5 h6 14. Bh4 Qb6 15. Bxf6 gxf6 16. Nxd7 Kxd7 17.
d5 Bd6 18. Bf3 Kc7 19. dxe6 {1/2-1/2 (19) Gsteu,P-Hillgarter,C (1900)
Vorarlberg 1996}) 9. dxc5 {Black must now prevent Qxd8+.} (9. a4 {is
interesting.} b4 10. Nbd2 Nbd7 11. Rc1 h6 12. Bxf6 gxf6 13. Nb3) 9... Qxd1 10.
Rxd1 Bxc5 11. a4 bxa4 12. Bxf6 (12. Nc3 {looks sharper.} a3 13. bxa3 Nbd7 14.
Rab1 Ra7 15. a4) 12... gxf6 13. Rxa4 Nd7 {[%cal Bb8d7,Bd7b6,Bb6c4][%mdl 32]
The position is equal.} 14. Nbd2 Nb6 15. Raa1 Bb4 16. Nd4 O-O 17. Bf3 Bxf3 18.
N2xf3 Rfc8 19. Rdc1 Nc4 20. Rc2 Nxb2 21. Rxa6 Rxa6 22. Rxc8+ Kg7 {( -> ...Ra1+)
} 23. g4 Nd3 24. Rd8 Ne5 25. h3 Ra2 26. Nh4 {[#]} h5 $1 {[%mdl 512] Hoping for
...Be1.} 27. f4 (27. gxh5 Be1) 27... hxg4 28. fxe5 fxe5 29. Ndf5+ exf5 30.
Nxf5+ $11 {[%mdl 4096] Endgame KRB-KRN} Kf6 31. hxg4 Bc5 32. Kf1 Ra4 33. Rg8
Ra2 34. Rc8 Bb4 35. Re8 Rc2 36. Ng3 Rc4 37. g5+ {[%mdl 64] Decoy} Kxg5 38.
Rxe5+ Kg4 39. Re4+ Rxe4 40. Nxe4 f5 41. Nf2+ Kf3 {[#]} 42. e4 $1 {[%mdl 512]}
fxe4 {[#]} 43. Nxe4 $1 {[%mdl 512] Accuracy: White = 97%, Black = 97%.} 1/2-1/2

[Event "Marshall Chess Club IM 2020"]
[Site "New York"]
[Date "2020.02.27"]
[Round "1"]
[White "Fikiet, Alex"]
[Black "Yudasin, Leonid"]
[Result "1/2-1/2"]
[ECO "E18"]
[WhiteElo "2217"]
[BlackElo "2481"]
[Annotator "TA"]
[PlyCount "58"]
[EventDate "2020.02.27"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 19,58,27,10,1,8,2,37,34,53,66,69,66,66,65,65,58,52,56,65,46,64,68,68,69,
64,64,67,46,69,44,58,23,24,30,31,31,40,22,22,0,41]} 1. d4 Nf6 2. c4 e6 3. Nf3
b6 4. g3 Bb7 5. Bg2 Be7 6. Nc3 O-O 7. O-O d5 8. cxd5 exd5 9. Bf4 Na6 {[%cal
Bb8a6,Ba6c7,Bc7b5,Bb5d6,Bd6f5][%mdl 32]} 10. Ne5 c5 11. e3 {E18: Queen's
Indian: Old Main Line (4 g3 Bb7 5 Bg2 Be7 6 0-0 0-0 7 Nc3).} Ne4 {White must
now prevent ...Nxc3.} 12. h4 {[#]} cxd4 $146 ({Predecessor:} 12... f6 13. Nf3
Kh8 14. Rc1 Qd7 15. dxc5 Nxc3 16. Rxc3 bxc5 17. Qb1 Bd6 18. Bxd6 Qxd6 {1-0 (48)
Pashakian,A-Kovanova,B (2359) Istanbul 2008}) 13. exd4 {White is slightly
better.} Nxc3 14. bxc3 Nc7 15. Re1 Bd6 16. Bh3 Bxe5 17. Bxe5 Nb5 18. Qh5 Nd6 $1
19. Bf1 g6 20. Qh6 {[%csl Ge5][%cal Rh6g7] [#]} Nf5 21. Qd2 f6 22. Bf4 Qd7 23.
Bd3 Rfe8 24. Rxe8+ Rxe8 25. Re1 Rxe1+ 26. Qxe1 Kf7 27. Qe2 Ng7 28. Bh6 Nf5 29.
Bf4 Bc6 {Accuracy: White = 87%, Black = 89%.} 1/2-1/2

[Event "Marshall Chess Club IM 2020"]
[Site "New York"]
[Date "2020.02.27"]
[Round "2"]
[White "Nestorovic, Nikola"]
[Black "Yudasin, Leonid"]
[Result "1-0"]
[ECO "B90"]
[WhiteElo "2469"]
[BlackElo "2481"]
[Annotator "TA"]
[PlyCount "82"]
[EventDate "2020.02.27"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 11,82,11,16,8,1,-9,3,7,6,14,49,48,45,37,62,51,70,0,84,83,104,85,110,92,
216,150,376,395,397,393,366,261,266,268,275,275,229,245,245,228,241,240,200,
-579,-545,-682,-689,-742,-698,-733,-721,-2316,-2298,-1799,-594,-5222,-171,-146,
-134,-131,-127,-127,-86,-75,-77,-86,-87,-79,-78,-98,-89,-98,-63]} 1. e4 c5 2.
Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. h3 e5 7. Nf3 {B90: Sicilian Najdorf:
Unusual White 6th moves, 6 Be3 Ng4 and 6 Be3 e5.} Be7 8. g4 O-O 9. g5 {The
position is equal.} Ne8 10. Be3 {[#]} Be6 $146 ({Predecessor:} 10... Nc7 11.
Qd2 Nd7 12. h4 b5 13. Bh3 b4 14. Ne2 a5 15. Ng3 Bb7 16. Bxd7 Qxd7 17. Nxe5 {
0-1 (62) Timofeev,A (2597)-Smirnov,A (2413) Samara 2014}) 11. Qd2 Nd7 12. O-O-O
$36 {[%mdl 2048] White fights for an advantage.} b5 13. Kb1 Nb6 14. Rg1 (14.
Nh4 $14) 14... g6 (14... Rb8 $11 {remains equal.}) 15. Nh2 $16 Rc8 16. Ng4 Qc7
17. f4 Ng7 (17... Bxg4 $16 18. Rxg4 (18. hxg4 exf4 19. Bxf4 f6 $11) 18... exf4
19. Bxf4 Qc6) 18. f5 {Black must now prevent f6.} gxf5 $2 (18... b4 $16) 19.
Nf6+ $18 Kh8 20. Qf2 Na4 21. Nxa4 bxa4 22. Bd3 $1 {Qh4! is the strong threat.}
({Less strong is} 22. Bxa6 fxe4 23. Bxc8 (23. Nxe4 a3 $17) 23... Rxc8 $11)
22... fxe4 23. Bxe4 Qc4 24. b3 axb3 25. axb3 Rb8 26. Rd3 Rfc8 27. Rg2 $4 {
[%mdl 8192]} (27. Bxh7 $18 {aiming for Be4.} Rb4 28. Be4) 27... Bxf6 $1 $19 28.
gxf6 Qxe4 29. fxg7+ Kg8 {Threatens to win with ...Bxb3!} 30. Kb2 a5 {[%cal
Ba6a5,Ba5a4][%mdl 32]} 31. Rxd6 a4 32. Rxe6 fxe6 (32... axb3 $142 33. Rb6 bxc2)
33. Rg4 {[#]} Qf5 $2 (33... Rxc2+ $1 {[%mdl 512]} 34. Qxc2 {[#]} a3+ $1 {
[%mdl 512]} 35. Kc1 Qxe3+ {[%mdl 64] Double Attack} 36. Kb1 Rxb3+ 37. Ka1 Qe1+
38. Ka2 Rb2+ 39. Qxb2 axb2 40. Kxb2 e4) 34. Rxa4 Qxf2 ({Much less strong is} 
34... Kxg7 35. Rg4+ Kh8 36. Rg5 $15) 35. Bxf2 Kxg7 {[%mdl 4096] Endgame KRR-KRB
} 36. Ra5 {Black is better.} Rb7 37. Rxe5 Rd7 38. b4 Rd2 39. Bc5 Kf6 40. Re3 e5
41. Kc3 Rf2 {[%mdl 32768] Accuracy: White = 65%, Black = 57%. . Loss on time!?}
1-0

[Event "Marshall Chess Club IM 2020"]
[Site "New York"]
[Date "2020.02.27"]
[Round "2"]
[White "Noboa Silva, Kevin"]
[Black "Sarkar, Justin"]
[Result "0-1"]
[ECO "E46"]
[WhiteElo "2329"]
[BlackElo "2373"]
[Annotator "TA"]
[PlyCount "58"]
[EventDate "2020.02.27"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 14,58,0,0,0,0,0,0,0,-37,1,-24,-29,-285,-305,-304,-327,-306,-340,-394,
-410,-462,-471,-633,-620,-623,-515,-497,-487,-491,-488,-596,-577,-554,-558,
-746,-742,-1279,-1291,-1535,-1465,-1959,-1968,-1937,-1827,-1749,-1685]} 1. d4
Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Nge2 d5 6. a3 Be7 7. Ng3 c5 8. dxc5 dxc4 {
E46: Nimzo-Indian: Rubinstein: 4 e3 0-0 5 Ne2 without early Bd3.} 9. Qc2 Qa5
10. Bxc4 Qxc5 {[#] The position is equal.} 11. Qe2 $146 ({Predecessor:} 11. Bd3
Nbd7 12. O-O Ne5 13. Be2 b6 14. f4 Ng6 15. b4 Qc7 16. Bb2 Bb7 17. Rac1 {
0-1 (33) Bluvshtein,M (2590)-Andreikin,D (2689) Moscow 2011}) 11... b6 12. b4
Qc6 {Strongly threatening ...Bb7.} 13. O-O $2 {[%mdl 8192] [#]} (13. e4 $11)
13... Bb7 $1 $19 {[%csl Gb7][%cal Rc6g2]} 14. e4 Rc8 15. Bd3 Qxc3 16. Be3 {
and the idea Rfc1 leaves White hopeful.} Rd8 17. Rfd1 Nc6 {Black is clearly
winning.} 18. f4 Nd4 19. Bxd4 Qxd4+ 20. Kh1 Qc3 21. e5 Nd5 22. Ne4 {[#]} Qxa1
$1 {[%mdl 512]} 23. Rxa1 Nxf4 {[%mdl 64] Double Attack, Discovered Attack} 24.
Qg4 Nxd3 25. Rf1 Bxe4 26. h4 Rd4 27. h5 h6 28. Kh2 Rad8 29. Qg3 {[#]} Nxe5 $1 {
White got outplayed after the opening. Accuracy: White = 25%, Black = 93%.} 0-1

[Event "Marshall Chess Club IM 2020"]
[Site "New York"]
[Date "2020.02.27"]
[Round "2"]
[White "Bonin, Jay"]
[Black "Lund, Silas"]
[Result "0-1"]
[ECO "D43"]
[WhiteElo "2258"]
[BlackElo "2340"]
[Annotator "TA"]
[PlyCount "70"]
[EventDate "2020.02.27"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,69,1,21,0,9,-2,0,-6,0,-4,0,-63,-41,-47,9,-17,-15,-21,-10,-67,-27,-64,
-72,-67,-7,-12,0,0,32,22,46,37,83,82,117,13,115,116,132,127,119,107,94,103,130,
100,109,110,111,-8,-8,-8,-8,-78,-73,-63,-50,-157,-60,-29973,-29974,-29999]} 1.
d4 d5 2. Nf3 Nf6 3. c4 c6 4. Qb3 e6 5. Nc3 a5 6. c5 {D43: Semi-Slav: 5 Bg5 h6.}
Nbd7 {[#]} 7. Bg5 $146 ({Predecessor:} 7. Bf4 b6 8. cxb6 Nxb6 9. e3 a4 10. Qc2
a3 11. Ne5 Bd7 12. Be2 axb2 13. Qxb2 {1/2-1/2 (64) Lundvik,J (2362)-Hillarp
Persson,T (2671) Sweden 2008}) 7... h6 8. Bh4 {The position is equal.} g5 9.
Bg3 Nh5 10. e4 (10. Be5 $11 f6 11. Bd6) 10... Nxg3 11. hxg3 {[%cal Re4d5]} Bg7
({Better is} 11... g4 $15 12. Nd2 Bg7) 12. Rd1 a4 13. Qc2 Qa5 14. e5 (14. exd5
$11 exd5 15. a3) 14... a3 15. bxa3 b6 16. cxb6 Nxb6 (16... Qxb6 $15 17. Rb1 Qa5
) 17. Nd2 $1 $11 Bf8 18. f4 gxf4 19. gxf4 Bxa3 20. Nb3 $36 {[%mdl 2048] White
has good play.} Qb4 {Hoping for ...Na4.} 21. Kf2 Nc4 22. Ne4 (22. Rh3 $1 $16)
22... dxe4 (22... Qa4 $11 {remains equal.}) 23. Bxc4 $16 Qa4 24. Be2 Ba6 25.
Qxe4 Bxe2 26. Qxe2 Bb4 27. Nc1 Ke7 28. Rh3 Rhd8 29. Kf1 ({But not} 29. Rxh6 $6
Bc3 $11) (29. Rb3 $16) 29... Bc5 $1 $11 30. Nb3 Bxd4 31. Rhd3 {[#]} (31. f5 $11
{keeps the balance.} exf5 32. e6 fxe6 33. Rxh6) 31... Bb6 $1 $17 {aiming for ..
.Rxd3.} 32. g3 Rd5 33. Rc1 {[#]} (33. R1d2 $15) 33... Qxa2 ({Black should play
} 33... Qb5 $1 $17 34. Rdc3 Rxa2 35. Qxb5 cxb5) 34. Rxc6 $2 {[%mdl 8192]} (34.
Rdc3 $15) 34... Rxd3 {[%mdl 64] Overworked Piece} 35. Qxd3 Qf2# {Accuracy:
White = 48%, Black = 64%.} 0-1

[Event "Marshall Chess Club IM 2020"]
[Site "New York"]
[Date "2020.02.27"]
[Round "2"]
[White "Hallaeva, Bahar"]
[Black "Cezila Jr, Rubens"]
[Result "1-0"]
[ECO "B13"]
[WhiteElo "2170"]
[BlackElo "2299"]
[Annotator "TA"]
[PlyCount "92"]
[EventDate "2020.02.27"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 10,92,26,6,45,35,49,41,41,41,59,49,50,38,42,42,47,56,45,35,42,14,37,33,
48,37,33,39,77,79,78,72,72,71,72,71,73,65,71,67,59,66,126,54,293,293,274,146,
346,338,321,184,256,148,147,167,253,253,304,302,311,293,334,323,345,313,276,
304,508,488,537,518,1025,1026,989,968,921,854,894,870,29977,29978,29982,29983,
29983]} 1. e4 c6 2. d4 d5 3. exd5 cxd5 4. Bd3 Nc6 5. c3 Qc7 6. Ne2 Nf6 {
B13: Caro-Kann: Exchange Variation and Panov-Botvinnik Attack.} 7. Bf4 e5 8.
dxe5 Nh5 {White is slightly better.} 9. O-O Bg4 {[#]} 10. Qa4 $146 (10. Be3 {
seems wilder.} Qxe5 11. Qb3 Bd6 12. g3 Qe7 13. Nd4) ({Predecessor:} 10. f3 Bc5+
11. Kh1 Be6 12. Nd2 O-O 13. Nb3 Bb6 14. Bg3 Nxg3+ 15. Nxg3 Nxe5 16. f4 Nxd3 17.
Qxd3 {1/2-1/2 (33) Jeske,K (1987)-Jussupow,N (2173) Braunfels 2013}) 10... Bxe2
11. Bxe2 Nxf4 12. Qxf4 Qxe5 13. Qxe5+ Nxe5 14. Bb5+ Ke7 15. f4 Nc6 16. Nd2 Rd8
17. Nb3 Kf6 18. Rad1 Bd6 19. Rxd5 Bc7 20. Bxc6 bxc6 21. Rxd8 Rxd8 $16 {[%mdl
4096] Endgame KRB-KRN} 22. Kf2 Bb6+ 23. Ke2 Re8+ 24. Kd3 Re3+ 25. Kd2 Kf5 ({
Black should try} 25... Re4 $14) 26. c4 (26. a4 $16 {And now a5 would win.} a6
27. Na5) 26... Re4 $2 {[#]} (26... Ke4 $1 $14) 27. c5 $18 Bc7 28. g3 (28. Kd3
$18 {Black must now prevent g4+!} Ra4 29. Nd4+ Kg4 30. Nxc6) 28... h5 $2 {
Black cannot hold the game after this.} (28... Ra4 $16 29. Kd3 Ke6) 29. Kd3 Ra4
30. a3 (30. Nd4+ $142 Kf6 31. a3) 30... Kg4 (30... Ke6 $142 31. Nd2 Ra5) 31.
Nd2 (31. Nd4 $18) 31... Ra5 32. Ne4 Rb5 (32... h4 {was necessary.} 33. Rg1 g6
34. gxh4+ Kxh4) 33. b4 a5 34. Kc4 Rb8 35. Ng5 axb4 36. axb4 h4 37. Nxf7 hxg3
38. hxg3 Kxg3 $2 {[#]} (38... Rf8 {is a better defense.}) 39. f5 Kg4 40. Nd6
Kg5 (40... Rd8 $142 41. Rg1+ Kf4) 41. Rg1+ Kf6 42. Rg6+ Ke5 43. Re6+ Kf4 44.
Re7 Bxd6 45. cxd6 Kxf5 46. d7 Rd8 {Accuracy: White = 67%, Black = 45%.} 1-0

[Event "Marshall Chess Club IM 2020"]
[Site "New York"]
[Date "2020.02.27"]
[Round "2"]
[White "Prilleltensky, Matan"]
[Black "Fikiet, Alex"]
[Result "1-0"]
[ECO "D04"]
[WhiteElo "2097"]
[BlackElo "2217"]
[Annotator "TA"]
[PlyCount "74"]
[EventDate "2020.02.27"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,74,-7,-5,-19,-20,-12,-23,-37,-36,-45,-34,-44,-16,-38,0,-28,0,-5,10,12,
24,0,0,0,0,0,30,10,101,93,105,62,200,74,42,-41,166,183,197,195,197,39,39,0,143,
160,145,130,281,274,491,494,435,0,1729,1643,2463,922,2180,1847,29989,29988,
29988,29989,29989,29990,29990]} 1. d4 d5 2. Nf3 Nf6 3. e3 c5 4. dxc5 e6 5. b4
a5 6. c3 {D04: Colle System.} axb4 7. cxb4 b6 $1 8. Bb5+ {Black has an edge.}
Bd7 9. Bxd7+ Nbxd7 10. a4 bxc5 11. b5 Bd6 12. O-O O-O 13. Nbd2 Qc7 14. Bb2 c4
15. Qc2 Nc5 16. Bc3 e5 {...e4 is the strong threat.} 17. h3 {[#]} Nfd7 $146 ({
Predecessor:} 17... Rfb8 18. Rfb1 Nd3 19. Ne1 d4 20. exd4 e4 21. Nxd3 exd3 22.
Qb2 Nd5 23. a5 Nf4 24. Kh1 Qe7 25. Nxc4 {1/2-1/2 (25) Anhalt,H (2449)-Walczak,
P (2470) ICCF email 2011}) 18. a5 f5 (18... Rfe8 $11) 19. b6 $16 Qc6 20. Rfb1
f4 {[#]} (20... h6 $14) 21. exf4 (21. e4 $1 $18 {[%mdl 512]}) 21... Rxf4 22.
Bb4 ({Much worse is} 22. g3 Rf6 $17) (22. Qb2 $1 $14) 22... Nd3 $2 (22... Raf8
$15 {stays ahead.}) 23. Bxd6 $18 Qxd6 24. b7 $1 {[%cal Rb7a8]} Ra6 25. Qa4 $2 (
{White should play} 25. g3 $18 Rf8 26. Nxc4 $1 {[%mdl 512]}) 25... Nb8 $1 $14
26. Qb5 e4 {[#]} (26... h6 $1 $11 {remains equal.}) 27. Nxc4 $1 $16 {[%mdl 512]
} dxc4 28. Qxc4+ Kh8 $2 (28... Qe6 $16 {is a better defense.} 29. Qc8+ Rf8 30.
Qxe6+ Rxe6) 29. Ng5 $1 $18 {[%cal Rg5e4]} Qf8 $2 (29... Qe7 30. Nxe4 {[%mdl 64]
Remove Defender} Rxe4 31. Qxd3 g6) 30. Ne6 Qg8 {[#]} 31. Rb6 $2 (31. Qxa6 $3
$18 {[%mdl 512]} Nxa6 32. Nxf4 Nxf4 33. Rb6 Ne2+ 34. Kf1 Ng3+ 35. Kg1 Ne2+ 36.
Kf1 Ng3+ 37. Kg1 Ne2+) 31... Ra7 $2 {[%mdl 8192]} (31... Rxb6 $11 32. axb6 e3
33. Qxd3 exf2+ 34. Kf1 Qxe6 35. Qd8+ {[%mdl 64] Double Attack} Qg8 36. Qxg8+
Kxg8) 32. Qc8 Rf6 33. Nd8 (33. Rd6 $142 h6 {[#]} 34. Rd8 $1 {[%mdl 512]} Qxd8
35. Nxd8) 33... Ne5 34. Qxb8 {[%mdl 64] Double Attack} Rxa5 {[#]} 35. Nf7+ $1 {
[%mdl 576] Promotion. White mates.} Rxf7 (35... Nxf7 36. Qxg8+) 36. Qxg8+ Kxg8
37. b8=Q+ Rf8 {Accuracy: White = 61%, Black = 38%.} 1-0

[Event "Marshall Chess Club IM 2020"]
[Site "New York"]
[Date "2020.02.28"]
[Round "3"]
[White "Yudasin, Leonid"]
[Black "Prilleltensky, Matan"]
[Result "1-0"]
[ECO "B52"]
[WhiteElo "2481"]
[BlackElo "2097"]
[Annotator "TA"]
[PlyCount "137"]
[EventDate "2020.02.27"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 25,137,39,40,47,46,54,113,106,135,91,143,142,135,106,100,102,146,141,
231,193,179,196,243,99,104,55,49,28,96,97,122,123,314,252,254,247,146,0,6,0,25,
25,25,28,25,34,24,30,30,29,29,31,44,25,29,29,37,29,25,18,61,63,175,163,158,137,
120,34,110,34,34,34,34,34,87,113,114,106,445,445,426,455,445,378,774,757,998,
580,1129,1126,990,917,1299,1260,1128,551,201,181,181,145,968,626,424,607,4627,
4627,1890,1529,6095,3016,2397,2235,1198,1183]} 1. e4 c5 2. Nf3 e6 3. b3 d6 4.
Bb5+ Bd7 5. Bxd7+ Nxd7 6. Bb2 Ngf6 7. Qe2 Be7 8. O-O O-O 9. c4 a6 10. Nc3 Rc8
11. d4 cxd4 12. Nxd4 Qc7 13. Rad1 Rfe8 14. Kh1 {B52: Sicilian: Moscow
Variation with 3...Bd7.} Bf8 15. f4 {[#]} h5 $146 (15... h6 $14) ({Predecessor:
} 15... Qa5 16. Nf3 Red8 17. e5 dxe5 18. fxe5 Ng4 19. Ng5 Ndxe5 20. Nd5 exd5
21. Bxe5 Nxe5 22. Qxe5 {1/2-1/2 (46) Fressinet,L (2595)-Polgar,J (2715)
Enghien les Bains 2003}) 16. Nf3 $16 {White is better.} Rcd8 17. h3 Be7 ({
Black should play} 17... Nh7) 18. Ng5 Qa5 19. Rde1 e5 20. fxe5 Nxe5 21. Nf3 Qc5
(21... Qb6 $16 22. Nxe5 dxe5) 22. Nxe5 dxe5 23. Nd5 $1 Qd6 24. Rd1 (24. Rf5 $18
) 24... Nxd5 25. Rxd5 Qg6 26. Rxe5 Bd6 (26... Bb4 $11) 27. Ref5 (27. Rxh5 $2
Rxe4 28. Qd3 Re1 $17) 27... f6 28. e5 fxe5 $2 (28... Bxe5 $16 29. Bxe5 fxe5)
29. Qe4 {Strongly threatening Rf8+!} ({Weaker is} 29. Rxh5 Re6 $16) (29. Bxe5
Bxe5 30. Rxe5 Rxe5 $16) 29... Re6 30. Qxb7 e4 (30... Kh7 $18 31. Bc3 (31. Qxa6
Be7 $18) 31... Kg8) 31. Qf7+ (31. c5 $1 $16 {[%cal Rc5d6]} Bf8 32. Bc3) 31...
Qxf7 $11 32. Rxf7 Rg6 {Threatening ...e3.} 33. R7f2 Bg3 34. Re2 Rgd6 {...Rd1
is the strong threat.} 35. Rxe4 {And now Re7 would win.} Rd1 {[%cal Rd1f1]} 36.
Re8+ $1 Kh7 {[%cal Rd1f1]} 37. Ref8 R8d2 38. Bc3 Rxf1+ 39. Rxf1 $14 {[%mdl
4096] Endgame KRB-KRB} Rc2 40. Bd4 {Hoping for a4.} Rd2 41. Be3 Rxa2 42. Bf4
Bxf4 43. Rxf4 $11 {KR-KR} Rb2 (43... a5 $14) 44. Rf3 $18 Rc2 45. Kg1 Kg6 46.
Rf2 (46. h4 $16) 46... Rc1+ ({Black should try} 46... Rc3 $14) 47. Rf1 (47. Kh2
$1 $16) 47... Rc3 $1 $14 48. Ra1 Rxb3 49. Rxa6+ Kf5 (49... Kf7 $14) 50. Ra5+
$16 {Black is on the road to losing.} Kg6 51. h4 $1 Rc3 $2 {[%mdl 8192]} (51...
Rb4 $16 {is tougher.}) 52. Rg5+ $18 Kf6 53. c5 $1 g6 54. Kf2 Rc4 $2 {[#]} (
54... Ra3 55. Ke2 Ra4) 55. g3 $1 Rc3 56. Ke2 Kf7 57. Kd2 Ra3 58. Kc2 Ra6 59.
Kb3 Ke7 60. Kc4 (60. Rd5 $142 Ra1 61. Kb4) 60... Kd7 61. Rd5+ Kc7 62. Kb5 Rf6
$2 {[%mdl 8192] [#]} (62... Re6 $16 63. Rg5 Kb7) 63. Rd3 $1 {[%cal Rd3a3]
White is clearly winning.} Re6 64. Ra3 (64. Rf3 $142) 64... Kb7 {[#]} 65. c6+
$1 {[%mdl 512]} Kc7 (65... Rxc6 66. Ra7+) 66. Ra7+ Kb8 67. Rg7 (67. Kb6 $142
Rxc6+ 68. Kxc6 Kxa7 69. Kd7) 67... Re1 68. Rxg6 Rb1+ 69. Kc5 {Accuracy: White
= 72%, Black = 42%.} 1-0

[Event "Marshall Chess Club IM 2020"]
[Site "New York"]
[Date "2020.02.28"]
[Round "3"]
[White "Sarkar, Justin"]
[Black "Bonin, Jay"]
[Result "1-0"]
[ECO "D15"]
[WhiteElo "2373"]
[BlackElo "2258"]
[Annotator "TA"]
[PlyCount "52"]
[EventDate "2020.02.27"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 12,52,35,33,38,42,36,36,66,68,54,76,152,144,179,163,154,123,125,122,130,
57,195,188,178,185,175,188,207,200,207,203,263,261,414,405,768,746,756,753,869,
819,790]} 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 a6 5. c5 Nbd7 6. Bf4 Nh5 7. Bd2
e5 {D15: Slav Defence: 4 Nc3 a6 and gambit lines after 4 Nc3 dxc4.} 8. Nxe5
Nxe5 9. dxe5 Bxc5 {White is slightly better.} 10. e4 $1 g6 11. exd5 {[#]} Qh4
$146 (11... cxd5 $142 12. Be2 Ng7) ({Predecessor:} 11... cxd5 12. Be2 Ng7 13.
O-O O-O 14. Bh6 Re8 15. Qxd5 Qxd5 16. Nxd5 Rxe5 17. Bf3 Ne8 {1-0 (52) Koczo,K 
(2199)-Gelle,I (2335) Budapest 2012}) 12. g3 $1 $36 {[%cal Rg3h4][%mdl 2048]
White has strong initiative.} Qd4 {[%csl Gc5][%cal Rd4f2]} 13. Qe2 cxd5 14. a3
{Hoping for Be3.} Bg4 15. f3 $1 {[%cal Rf3g4]} Be6 16. O-O-O (16. Rd1 $16 {
And now Bg5 would win.} Qc4 17. Qxc4 dxc4 18. Ne4) 16... Rc8 {[#] Now Black is
done in.} ({Black should play} 16... Be7 $14) 17. Bh6 $1 $18 Qf2 {[#]} 18. Qxf2
$1 Bxf2 19. Kb1 {g4 is the strong threat.} f5 20. Nxd5 Kf7 {intending ...Rhd8.}
21. f4 Rc5 22. Bg2 Rhc8 (22... Rd8 {was necessary.}) 23. Rhf1 Rc2 (23... Rd8
$142 24. Bg5 Rd7) 24. Nb4 {White is clearly winning.} Re2 25. Bf3 Bc4 26. Bxe2
Bxe2 {Accuracy: White = 91%, Black = 37%.} 1-0

[Event "Marshall Chess Club IM 2020"]
[Site "New York"]
[Date "2020.02.28"]
[Round "3"]
[White "Lund, Silas"]
[Black "Nestorovic, Nikola"]
[Result "0-1"]
[ECO "E51"]
[WhiteElo "2340"]
[BlackElo "2469"]
[Annotator "TA"]
[PlyCount "130"]
[EventDate "2020.02.27"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 12,130,12,16,0,0,14,23,18,17,19,24,19,19,40,3,4,-14,8,0,0,-18,21,23,44,
0,0,-16,0,0,0,-7,14,14,89,38,15,0,0,0,57,-10,-10,-19,-16,-12,-19,-20,-14,-242,
-225,-202,-98,-97,-98,-108,-113,-295,-302,-307,-293,-304,-286,-402,-39,-39,0,0,
0,-6,-6,-8,-8,-8,-8,-18,0,-75,-122,-167,-164,-262,-268,-266,-255,-224,-162,
-420,-322,-370,-232,-306,-291,-339,-178,-396,-370,-381,-370,-345,-311,-422,
-331,-486,-493,-502,-382,-619,-435,-435,-435,-418,-434,-412,-413,-392,-339,
-12846,-12847,-12847,-12847]} 1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5
6. Nf3 dxc4 7. Bxc4 c5 {E51: Nimzo-Indian: Rubinstein: 4...0-0 5 Nf3 d5.} 8. a3
cxd4 9. axb4 dxc3 {White has an edge.} 10. Qxd8 Rxd8 11. bxc3 b6 12. Bb2 Bb7
13. Ke2 {[#]} a6 $146 ({Predecessor:} 13... Nc6 14. Rhd1 Rxd1 15. Rxd1 Ne7 16.
Ne1 Ned5 17. Bd3 a6 18. f3 b5 19. e4 Nb6 {1-0 (46) Tomas Falcon,J (2120)-Brea,
E (1976) Villa Martelli 2017}) 14. Rhc1 (14. Rhd1 {is interesting.} Nbd7 15.
Bb3 b5 16. c4 bxc4 17. Bxf6 Nxf6 18. Rxd8+ Rxd8 19. Bxc4 Nd5 20. Bxd5 Bxd5 21.
Nd2) 14... Nbd7 15. Bb3 a5 16. Nd4 Ba6+ 17. b5 $1 {[%cal Rb5a6]} Bb7 18. Ba3
Ne4 19. c4 Rac8 20. f3 Nec5 21. Ba2 a4 22. Rc3 f6 (22... g5 $11) 23. Rd1 (23.
Nxe6 $16 Nxe6 24. c5) 23... Kf7 $14 24. Rc2 Ne5 {[%cal Bd7e5,Be5c4,Bc4a3][%mdl
32]} 25. Rcd2 g5 (25... Rd6 $11) 26. e4 (26. f4 $1 $14 gxf4 27. exf4) 26... h5
$36 {[%mdl 2048] Black is pushing.} 27. Ke3 Nb3 28. Nxb3 Nxc4+ 29. Ke2 Rxd2+ ({
Of course not} 29... Nxd2 30. Nxd2 Rc3 31. Bb4 $14) 30. Nxd2 $2 (30. Rxd2 $11 {
and White stays safe.} Nxa3 31. Nd4) 30... Nxa3 $19 31. Nc4 Nxb5 (31... Nxc4
$19 32. Rd7+ Ke8 33. Rxb7 Na5 34. Bxe6 Nxb7 35. Bxc8 Nd6) 32. Rd7+ $17 Kg6 {
...Nc3+ is the strong threat.} 33. Rxb7 {Hoping for Ke3.} Nc3+ {[%mdl 64]
Double Attack} 34. Kd3 $2 (34. Kd2 $17 {only move.} Nxa2 35. Nxb6 Rd8+ 36. Rd7
Rxd7+ 37. Nxd7) 34... Nxa2 $19 35. Rxb6 {[%mdl 4096] Endgame KRN-KRN} Nc1+ 36.
Kc3 a3 37. Rxe6 (37. g4 $142) 37... a2 $2 (37... Ne2+ $19 38. Kb4 a2) 38. Ra6
$15 Rb8 {aiming for ...Rb1.} 39. Kc2 $1 Rb4 40. Nd2 Rb6 41. Ra3 Rc6+ 42. Kb2 h4
43. h3 Ne2 {White must now prevent ...Nf4.} 44. Rxa2 {[#]} (44. Nf1 $11 {
keeps the balance.}) 44... Nf4 $1 $17 {Black converts the advantage
convincingly.} 45. Kb3 Nxg2 46. Nc4 (46. e5 $142) 46... Nf4 $19 47. Rh2 Rc8 48.
Kc3 Rd8 {Threatens to win with ...Rd3+.} 49. Nd2 $2 (49. Rd2 {is the only way
for White.} Rxd2 50. Kxd2) 49... Kf7 50. Kc2 Ra8 51. Rh1 Ke6 52. Kc3 Rc8+ (
52... Ra3+ $142 53. Nb3 Ke5) 53. Kd4 $2 (53. Nc4) 53... Rd8+ 54. Kc3 Rd3+ 55.
Kc2 Ra3 56. Rb1 Ra6 57. Rb5 (57. Nb3 $142 Ra2+ 58. Kc3) 57... Nxh3 58. Nb3 {
And now Nc5+ would win.} Rd6 59. Kc3 $2 (59. Nc5+ Kf7 60. Rb7+ Ke8 61. Nd3)
59... Nf4 60. Nd4+ Kf7 61. Rb7+ Ke8 62. Kc4 h3 63. Rh7 Kf8 64. Rh6 $2 {[#]} (
64. Ra7) 64... Rxd4+ $1 {[%mdl 512]} 65. Kxd4 Kg7 {Accuracy: White = 48%,
Black = 70%.} 0-1

[Event "Marshall Chess Club IM 2020"]
[Site "New York"]
[Date "2020.02.28"]
[Round "3"]
[White "Cezila Jr, Rubens"]
[Black "Noboa Silva, Kevin"]
[Result "1/2-1/2"]
[ECO "A62"]
[WhiteElo "2299"]
[BlackElo "2329"]
[Annotator "TA"]
[PlyCount "96"]
[EventDate "2020.02.27"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 19,96,0,22,16,54,51,78,63,66,50,77,83,104,110,114,103,125,118,131,135,
113,110,97,97,103,81,76,43,66,41,30,28,41,34,70,58,85,93,89,59,90,84,90,35,39,
37,45,50,69,69,90,90,90,90,90,90,91,45,46,27,35,0,0,0,120,101,105,120,86,130,
147,147,208,132,145,131,206,14,131]} 1. d4 e6 2. c4 Nf6 3. g3 c5 4. d5 exd5 5.
cxd5 d6 6. Nc3 g6 7. Bg2 Bg7 8. Nf3 O-O 9. O-O Re8 10. Nd2 {10.Re1 is more
fashionable. Played by Alireza Firouzja in December 2019.} b6 11. h3 {A62:
Modern Benoni: Fianchetto Variation without early ...Nbd7.} Ba6 12. a4 Nh5 {
Strongly threatening ...Bxc3.} 13. Re1 {White is better.} Nd7 14. Nb5 {[%cal
Bc3b5,Bb5a3,Ba3c4][%mdl 32] [#]} Bf8 $146 ({Predecessor:} 14... Ne5 15. Ne4
Bxb5 16. axb5 Qc7 17. Ra4 Nf6 18. Nc3 Nh5 19. Kh2 f5 20. e4 c4 {1-0 (63)
Dzhumagaliev,Y (2400)-Ponkratov,P (2604) Minsk 2015}) 15. Ne4 Ndf6 16. Nec3 $1
Bb7 17. g4 a6 18. Na3 $1 Ng7 19. e4 Nd7 20. Nc4 Ne5 21. Nxe5 dxe5 22. Be3 Bd6
23. Qb3 Rb8 24. Rac1 Bc8 25. Nb1 Qe7 26. Qc2 f5 27. f3 fxg4 28. fxg4 h5 29. g5
Rf8 30. Rf1 Bd7 31. Nd2 (31. h4 $16) 31... b5 $14 32. axb5 axb5 33. b3 Rbc8 34.
h4 Rxf1+ 35. Bxf1 Ne8 36. Ra1 Nc7 37. Be2 Kg7 38. Nf3 Bg4 39. Ne1 Qd7 40. Bxg4
Qxg4+ 41. Ng2 Qd7 (41... Kg8 $11 {remains equal.}) 42. Ra7 $16 ({Don't go for} 
42. Bxc5 $2 Nxd5 $1 {[%mdl 512]} 43. Ra7 Qxa7 $1 $19 {[%mdl 512]}) 42... Qe7
43. Kh2 Kg8 44. Rb7 Qf8 {[#]} 45. Rb6 $1 Kg7 (45... Kh7 $16 {keeps fighting.}
46. Kg3 Kg8) 46. Qc3 b4 47. Qc2 Ne8 {[#]} (47... Na8 $16 48. Rb7+ Rc7) 48. Rc6
$2 ({White should play} 48. Rxb4 $1 $18 {And now Rb6 would win.} Qe7 49. Bf2)
48... Rc7 {Accuracy: White = 76%, Black = 66%.} (48... Rxc6 $11 49. dxc6 Nc7)
1/2-1/2

[Event "Marshall Chess Club IM 2020"]
[Site "New York"]
[Date "2020.02.28"]
[Round "3"]
[White "Fikiet, Alex"]
[Black "Hallaeva, Bahar"]
[Result "1/2-1/2"]
[ECO "E15"]
[WhiteElo "2217"]
[BlackElo "2170"]
[Annotator "TA"]
[PlyCount "45"]
[EventDate "2020.02.27"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 12,45,12,5,16,0,0,0,0,0,0,0,19,0,0,-21,0,-20,-17,-26,-20,-17,-14,-37,
-35,-37,0,0,0,-11,-14,-20,-17,-13,-8,-14]} 1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. g3
Bb4+ 5. Bd2 Be7 6. Bg2 c6 7. Nc3 d5 {E15: Queen's Indian: 4 g3 sidelines, 4 g3
Ba6 and 4 g3 Bb7 early deviations.} 8. cxd5 cxd5 9. O-O O-O 10. Rc1 Bb7 11. Ne5
Nfd7 12. Nd3 Nc6 {[#]} 13. e3 $146 ({Predecessor:} 13. Qa4 a6 14. e3 b5 15. Qd1
Qb6 16. Re1 a5 17. Qb3 Na7 18. Bf1 Ba6 19. Nf4 {0-1 (70) Zhang,X (1946)-Guo,Q 
(2361) Jiangmen 2018}) 13... Rc8 14. Nb1 Ba6 15. Bc3 Nf6 16. Re1 Ne4 17. Bf1
Bd6 18. Nd2 Nxc3 19. Rxc3 {The position is equal.} Na5 20. Rxc8 Qxc8 21. Qa4
Qc6 22. Qxc6 Nxc6 23. Rc1 {Accuracy: White = 100%, Black = 92%.} 1/2-1/2

[Event "Marshall Chess Club IM 2020"]
[Site "New York"]
[Date "2020.02.28"]
[Round "4"]
[White "Nestorovic, Nikola"]
[Black "Prilleltensky, Matan"]
[Result "1-0"]
[ECO "B41"]
[WhiteElo "2469"]
[BlackElo "2097"]
[Annotator "TA"]
[PlyCount "103"]
[EventDate "2020.02.27"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 20,103,39,12,67,69,64,51,93,36,55,51,139,81,97,133,173,155,155,131,166,
152,150,162,141,155,145,90,94,101,92,108,106,93,92,105,213,198,199,210,201,216,
191,213,195,191,306,293,307,302,340,340,330,339,331,309,302,309,281,222,216,
205,288,281,278,214,196,202,341,165,153,165,818,662,577,760,745,743,702,695,
5961,3272,29988,29989,29989,29990]} 1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6 5.
c4 Nf6 6. Nc3 Qc7 7. Be2 b6 8. f4 d6 9. O-O Bb7 10. Qd3 Nbd7 11. b4 Be7 {
B41: Sicilian: Kan Variation: 5 c4.} (11... d5 $11) 12. a3 $14 O-O 13. Bd2 Rac8
{White is slightly better.} 14. Rac1 {[#]} ({White should try} 14. g4 $16)
14... Qb8 $146 ({Predecessor:} 14... Rfe8 15. Be3 Bf8 16. Nb3 Qb8 17. Bf3 Qa8
18. Rfd1 h5 19. h3 Rc7 20. Bf2 Rec8 {1-0 (37) Tamarozi,I (1904)-Souza,R (2193)
Brasilia 2018}) 15. g4 h6 ({Black should play} 15... Qa8 $14) 16. h4 (16. Qh3
$142 $1) 16... h5 17. gxh5 b5 18. cxb5 axb5 19. Ndxb5 Rfd8 20. Be3 Qa8 {
[%cal Rf6e4]} 21. Bf3 (21. Nxd6 Bxd6 22. Qxd6 Qxa3 $17) 21... e5 22. f5 d5 23.
Nxd5 (23. exd5 $142 Bf8 24. h6) 23... Bxd5 24. exd5 e4 25. Bxe4 Ne5 26. Qd4
Rxc1 27. Bxc1 Qb8 (27... Neg4 $16) 28. Bf4 $1 $18 {Black must now prevent a4.}
Qxb5 29. Bxe5 {And now h6 would win.} ({Not} 29. Qxe5 Qb6+ 30. Kh1 Bd6 $11)
29... Nxd5 {[#]} 30. a4 $1 {[%cal Ra4b5,Ba3a4,Ba4a5][%mdl 32]} ({Stronger than
} 30. Bxg7 Nf6 $17) 30... Qxb4 31. Qxb4 Nxb4 32. Rc1 Bxh4 (32... f6 {might
work better.}) 33. Rc4 Be7 34. a5 f6 35. Bf4 Rd1+ 36. Kg2 Ra1 37. Rc7 Kf8 {[#]}
38. Rc8+ $1 Kf7 39. Ra8 Ra2+ 40. Kg3 Ra3+ (40... Bc5 {is a better defense.} 41.
h6 Ra3+ 42. Kg4 gxh6 43. Bxh6 Ra4) 41. Kg4 Ra1 42. Bb7 Bc5 43. a6 {aiming for
Rc8.} Rg1+ (43... Nd3 $142) 44. Kh3 (44. Kh4 $142) 44... Nd3 45. Bg3 Ra1 $2 (
45... Nf2+ 46. Bxf2 Bxf2) 46. Rc8 Ra3 47. Kg2 Ra2+ 48. Kf3 {White threatens
Bd5+ and mate.} Ra3 49. Ke4 Bb6 50. Bd6 {[%csl Gd6][%cal Rc8f8]} Nf2+ 51. Kd5 {
[%csl Gd6][%cal Rc8f8]} Rd3+ 52. Kc6 {Accuracy: White = 80%, Black = 47%.} 1-0

[Event "Marshall Chess Club IM 2020"]
[Site "New York"]
[Date "2020.02.28"]
[Round "4"]
[White "Lund, Silas"]
[Black "Sarkar, Justin"]
[Result "0-1"]
[ECO "A88"]
[WhiteElo "2340"]
[BlackElo "2373"]
[Annotator "TA"]
[PlyCount "70"]
[EventDate "2020.02.27"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 16,70,4,12,22,0,0,5,34,28,28,0,-8,-41,-28,-29,-26,-47,-47,-52,-57,-47,
-45,-69,-68,-56,-64,-84,-77,-80,-40,-75,-38,-90,-52,-47,-44,-48,-48,-54,-34,
-41,-21,-15,-37,-158,-157,-195,-187,-188,-196,-505,-510,-548,-538,-545,-539]} 
1. d4 f5 2. g3 Nf6 3. Bg2 g6 4. c4 Bg7 5. Nc3 d6 6. Nf3 O-O 7. O-O c6 8. Qc2 {
8.b3 is becoming the main line.} Na6 9. Rd1 Qc7 {A88: Dutch Defence: Leningrad
System: 5 Nf3 0-0 6 0-0 d6 7 Nc3 c6.} 10. b3 Re8 11. Ba3 {[#]} Qa5 $146 {
The position is equal.} ({Predecessor:} 11... Bd7 12. Rac1 Rac8 13. Qb1 Qa5 14.
Bb2 b5 15. cxb5 cxb5 16. e3 b4 17. Ne2 Ne4 {1-0 (51) Santiago,Y (2410)-Sevgi,V
(2122) Skopje 2015}) 12. Bb2 e5 13. a3 e4 14. Ne1 d5 15. b4 Qd8 16. b5 Nc7 17.
bxc6 bxc6 18. cxd5 cxd5 19. Rac1 Ne6 20. e3 Ba6 21. Na4 Rc8 22. Nc5 Bc4 23. Qa4
Qb6 24. Bc3 ({White should try} 24. Rd2 $15) 24... Be2 25. Rd2 Bb5 $36 {
[%mdl 2048] Black has the initiative.} 26. Qd1 Nxc5 27. dxc5 Qxc5 28. Bb2 Qb6
29. Rxc8 Rxc8 30. Bxf6 (30. Bf1 $1 $15) 30... Bxf6 $17 31. Rxd5 Bc4 32. Rd6 Qb2
{Strongly threatening ...Bb3.} 33. Bf1 $2 (33. Rd2 {was the crucial defense.}
Qxa3 34. Nc2) 33... Bb3 $19 {Black is clearly winning.} 34. Qe2 {[#]} Qxe2 $1
35. Bxe2 Rc1 {Accuracy: White = 54%, Black = 85%.} 0-1

[Event "Marshall Chess Club IM 2020"]
[Site "New York"]
[Date "2020.02.28"]
[Round "4"]
[White "Noboa Silva, Kevin"]
[Black "Fikiet, Alex"]
[Result "1/2-1/2"]
[ECO "D22"]
[WhiteElo "2329"]
[BlackElo "2217"]
[Annotator "TA"]
[PlyCount "74"]
[EventDate "2020.02.27"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 11,74,40,55,26,58,37,39,35,44,39,37,34,50,45,43,0,0,0,0,0,0,0,0,0,0,0,0,
0,0,0,0,0,0,-11,0,0,0,0,0,-7,0,0,0,0,0,0,11,0,0,0,0,-27,-16,-19,-9,-8,-6,-8,0,
-7,0,0,0,-14,0]} 1. d4 d5 2. c4 dxc4 3. Nf3 a6 4. e3 Bg4 5. Bxc4 e6 6. h3 Bh5
7. Nbd2 {[%cal Bb1d2,Bd2c4,Bc4e5,Be5d3][%mdl 32] D22: Queen's Gambit Accepted:
3 Nf3 a6 4 e3.} Nc6 8. Be2 Nf6 9. O-O {White is slightly better.} Be7 10. b3
O-O 11. Bb2 Nd5 {[#]} 12. Nc4 $146 ({Predecessor:} 12. Rc1 Bg6 13. Nc4 f6 14.
a3 a5 15. Bd3 Qe8 16. Qc2 Bxd3 17. Qxd3 Qg6 18. Qxg6 hxg6 {0-1 (45) Jorgensen,
D (2215)-Granda Zuniga,J (2699) Helsingor 2016}) 12... f5 13. Nfe5 {[#]
Strongly threatening Nxc6.} Bxe2 14. Qxe2 Nxe5 15. Nxe5 Bd6 16. Nd3 Qh4 17.
Rfe1 Rae8 18. Rac1 f4 19. exf4 Nxf4 20. Nxf4 Qxf4 21. g3 Qf5 22. Kg2 Rf6 23.
Rc2 $1 Ref8 {[#] aiming for ...Qg6.} 24. Qe4 Qd5 25. Re3 a5 26. h4 h6 27. Rce2
b6 28. Kg1 R8f7 29. Qg2 Rg6 30. Kf1 Rgf6 31. Qh3 Rf3 {...Bxg3 is the strong
threat.} 32. Kg1 $1 {The position is equal.} Rxe3 33. Rxe3 Rf6 34. Qg4 Kf7 35.
Qe2 Kg8 36. Qc4 Kf7 37. Qc2 Kg8 {Accuracy: White = 89%, Black = 97%.} 1/2-1/2

[Event "Marshall Chess Club IM 2020"]
[Site "New York"]
[Date "2020.02.28"]
[Round "4"]
[White "Bonin, Jay"]
[Black "Cezila Jr, Rubens"]
[Result "*"]
[ECO "A01"]
[WhiteElo "2258"]
[BlackElo "2299"]
[Annotator "TA"]
[PlyCount "162"]
[EventDate "2020.02.27"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,162,-15,-13,-28,-21,-18,-15,-18,-1,-6,-1,-37,-18,-40,0,0,6,0,0,0,3,0,
0,-17,28,10,33,29,28,12,44,44,97,101,97,100,104,87,80,84,99,96,101,93,101,99,
100,106,106,100,109,99,77,78,162,136,131,148,148,138,145,132,137,119,128,126,
122,114,109,0,0,0,0,0,2,0,0,0,0,0,0,0,0,0,4,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,8,0,0,0,0,0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. b3 g6 2. Bb2 Nf6 3. Bxf6 exf6 4. c4 d5 5. cxd5
Qxd5 6. Nc3 {A01: Nimzowitsch-Larsen Opening.} Qa5 {[#]} 7. a3 $1 {[%mdl 512]
7.a3 is better than 7.g3.} c6 ({Don't blunder} 7... Bxa3 $2 8. Nb1 $18) 8. e3
Bg7 9. b4 Qd8 10. Bc4 {[#]} O-O $146 ({Predecessor:} 10... a5 11. b5 c5 12.
Nge2 Nd7 13. Ba2 O-O 14. O-O f5 {1/2-1/2 (14) Bauer,C (2624)-Naiditsch,A (2698)
Zuerich 2015}) 11. Nge2 Nd7 12. d4 a5 13. O-O Nb6 14. Bb3 Qe7 15. b5 Rd8 16.
Nf4 Bh6 17. Qf3 a4 18. Ba2 $1 Bxf4 19. Qxf4 cxb5 20. Nxb5 Ra5 ({Black should
try} 20... Bf5 $14) 21. Qc7 $16 Qxc7 22. Nxc7 Bf5 23. Rfc1 Nc8 24. f3 Nd6 25.
e4 Bd7 26. Rab1 Rc8 27. Nd5 Rxc1+ 28. Rxc1 Kg7 29. Nb6 Be8 30. d5 Kf8 31. Rc7
Ra6 (31... Bb5 $16 {was necessary.}) 32. Nc8 Nxc8 33. Rxc8 {[%mdl 4096]
Endgame KRB-KRB} Rb6 34. f4 $1 Ke7 {Threatening ...Rb2.} 35. e5 Kd7 {[#]} 36.
Rb8 $1 fxe5 37. fxe5 f6 {[#]} 38. e6+ $1 Ke7 39. d6+ (39. Bc4 $16) 39... Rxd6
$11 {The position is equal.} 40. Rxb7+ Kd8 41. Bc4 h5 (41... Rc6 {feels hotter.
} 42. e7+ Kc8 43. Rb4 Rd6 44. Kf1 h5) 42. Kf2 Rc6 43. Rb4 Rc7 44. Ke3 Ke7 45.
Kd4 Rc8 46. Rb7+ Kd6 47. Rg7 g5 48. Rg8 Rd8 49. Kc3 Ke7 50. Kb4 Rb8+ 51. Kc3
Rd8 52. Rg7+ Kd6 53. Kd4 Rc8 54. g3 Rb8 55. Ra7 Rc8 56. h3 Rd8 57. g4 Kc6+ 58.
Ke4 Bg6+ 59. Ke3 hxg4 60. hxg4 Kc5 61. Rxa4 Be8 62. Rb4 Ra8 63. Bd3 Rxa3 64.
Rd4 Ra7 65. Rd8 Re7 66. Bf5 Bc6 67. Rf8 Bd5 68. Rxf6 Kd6 69. Kd4 Rb7 70. Rf8 {
Black must now prevent Rd8+.} Rb4+ 71. Kc3 Rb3+ 72. Kc2 {aiming for Rd8+.} Rb7
73. Rd8+ Ke5 74. Rd7 {Hoping for e7.} Rb8 75. e7 {Threatens to win with Rd8.}
Re8 $1 76. Bg6 Be4+ 77. Bxe4 Kxe4 78. Kc3 Kf4 79. Kd4 Kxg4 80. Ke5 Kf3 81. Kf6
g4 {White really could win this. Accuracy: White = 97%, Black = 91%.} *

[Event "Marshall Chess Club IM 2020"]
[Site "New York"]
[Date "2020.02.28"]
[Round "4"]
[White "Bonin, Jay"]
[Black "Cezila Jr, Rubens"]
[Result "1/2-1/2"]
[ECO "A01"]
[WhiteElo "2258"]
[BlackElo "2299"]
[Annotator "TA"]
[PlyCount "162"]
[EventDate "2020.02.27"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,162,-20,-12,-25,-22,-20,-14,-22,-6,-18,4,-37,-39,-52,0,-2,0,0,0,0,0,
-29,-11,-18,25,25,16,14,33,30,41,47,91,91,89,83,91,80,84,84,93,97,87,88,114,
111,99,102,100,97,109,85,66,72,152,119,117,112,125,118,120,118,120,127,108,121,
121,103,87,0,0,0,0,-7,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,0,0,8,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,23,0,0,0,0,0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. b3 g6 2. Bb2 Nf6 3. Bxf6 exf6 4. c4 d5 5. cxd5
Qxd5 6. Nc3 {A01: Nimzowitsch-Larsen Opening.} Qa5 {[#]} 7. a3 $1 {[%mdl 512]
The main line 7.a3 scores better than 7.g3.} c6 ({Don't go for} 7... Bxa3 $2 8.
Nb1 $18) 8. e3 Bg7 9. b4 Qd8 10. Bc4 {[#]} O-O $146 ({Predecessor:} 10... a5
11. b5 c5 12. Nge2 Nd7 13. Ba2 O-O 14. O-O f5 {1/2-1/2 (14) Bauer,C (2624)
-Naiditsch,A (2698) Zuerich 2015}) 11. Nge2 Nd7 (11... b5 $5 {[%cal Rb5c4]} 12.
Ba2 a5 $11) 12. d4 a5 13. O-O Nb6 14. Bb3 Qe7 15. b5 Rd8 16. Nf4 Bh6 17. Qf3 a4
18. Ba2 Bxf4 19. Qxf4 cxb5 20. Nxb5 Ra5 21. Qc7 Qxc7 22. Nxc7 Bf5 23. Rfc1 Nc8
24. f3 Nd6 25. e4 Bd7 26. Rab1 Rc8 27. Nd5 Rxc1+ 28. Rxc1 Kg7 29. Nb6 Be8 30.
d5 Kf8 31. Rc7 Ra6 (31... Bb5 $142) 32. Nc8 Nxc8 33. Rxc8 $16 {[%mdl 4096]
Endgame KRB-KRB} Rb6 34. f4 Ke7 {With the idea ...Rb2.} 35. e5 Kd7 {[#]} 36.
Rb8 $1 fxe5 37. fxe5 f6 {[#]} 38. e6+ $1 Ke7 39. d6+ ({White should try} 39.
Bc4 $16) 39... Rxd6 $11 40. Rxb7+ Kd8 41. Bc4 h5 (41... Rc6 {keeps more
tension.} 42. e7+ Kc8 43. Rb4 Rd6 44. Bb5 Bxb5 45. Rxb5 Kd7) 42. Kf2 Rc6 43.
Rb4 Rc7 44. Ke3 Ke7 45. Kd4 Rc8 46. Rb7+ Kd6 47. Rg7 g5 48. Rg8 Rd8 49. Kc3 Ke7
50. Kb4 Rb8+ 51. Kc3 Rd8 52. Rg7+ Kd6 53. Kd4 Rc8 54. g3 Rb8 55. Ra7 Rc8 56. h3
Rd8 57. g4 Kc6+ 58. Ke4 Bg6+ 59. Ke3 hxg4 60. hxg4 Kc5 61. Rxa4 Be8 62. Rb4 Ra8
63. Bd3 Rxa3 64. Rd4 {And now Rd8 would win.} Ra7 65. Rd8 Re7 66. Bf5 Bc6 67.
Rf8 Bd5 68. Rxf6 Kd6 69. Kd4 Rb7 {The position is equal.} 70. Rf8 Rb4+ 71. Kc3
Rb3+ 72. Kc2 {Rd8+ is the strong threat.} Rb7 73. Rd8+ Ke5 74. Rd7 {Threatens
to win with e7.} Rb8 75. e7 {Black must now prevent Rd8.} Re8 $1 76. Bg6 Be4+
77. Bxe4 Kxe4 78. Kc3 Kf4 79. Kd4 Kxg4 80. Ke5 Kf3 81. Kf6 g4 {Accuracy: White
= 94%, Black = 92%.} 1/2-1/2

[Event "Marshall Chess Club IM 2020"]
[Site "New York"]
[Date "2020.02.28"]
[Round "4"]
[White "Hallaeva, Bahar"]
[Black "Yudasin, Leonid"]
[Result "0-1"]
[ECO "B22"]
[WhiteElo "2170"]
[BlackElo "2481"]
[Annotator "TA"]
[PlyCount "80"]
[EventDate "2020.02.27"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 20,80,49,24,52,6,25,0,0,0,0,7,0,-25,-33,-23,0,0,28,0,26,16,16,-53,0,0,0,
0,0,-9,-9,-18,-17,-21,-19,-14,-13,-34,-7,-9,-8,-11,0,-12,-8,-12,-4,-15,-12,-20,
-4,-10,-4,-83,-83,-85,-85,-111,-54,-64,-6,-29995,-29996]} 1. e4 c5 2. c3 Nf6 3.
e5 Nd5 4. Nf3 Nc6 5. Bc4 e6 6. O-O d6 7. d4 cxd4 8. cxd4 Be7 9. Qe2 Nb6 10. Bb3
d5 11. Nc3 Bd7 {B22: Sicilian: 2 c3.} 12. Be3 Rc8 13. Rac1 a6 {The position is
equal.} 14. Bc2 Nc4 15. Bb1 {[#]} b5 $146 ({Predecessor:} 15... Nxe3 16. fxe3
O-O 17. e4 dxe4 18. Qxe4 g6 19. Qf4 f5 20. d5 exd5 21. Nxd5 Be6 22. Nxe7+ Qxe7
{0-1 (42) Roussey,Q (1911)-Devallee,J (2166) Besancon 2014}) 16. a3 Qb6 17. Bd3
Nxe3 18. fxe3 O-O 19. Kh1 Qa7 20. Nd2 g6 21. Rf3 (21. b4 $11) 21... f6 (21...
b4 $15 22. axb4 Nxb4) 22. exf6 $11 Rxf6 23. Rxf6 Bxf6 24. Rf1 Rf8 25. Nf3 Qb8
26. Qd2 Qd6 27. Bb1 Bg7 28. Re1 b4 29. axb4 Qxb4 30. Bd3 a5 31. Qf2 a4 32. Ra1
Na5 33. Qc2 Nc4 $36 {[%mdl 2048] Black fights for an advantage.} 34. Bxc4 Qxc4
35. Nd2 Qb4 36. Na2 (36. Nf3 $11 {remains equal.}) 36... Qb6 $17 37. Nc3 Bh6
38. Re1 {[#]} Qb4 ({Better is} 38... Rc8 $1 $17 39. Kg1 Qb4) 39. Nf3 $15 Bg7 (
39... Rb8 $15 40. Qd3 Be8) 40. Na2 $2 {[%mdl 8192] [#]} (40. h3 $11) 40...
Qxe1+ $1 {[%mdl 576] Double Attack. Accuracy: White = 64%, Black = 79%.} 0-1

[Event "Marshall Chess Club IM 2020"]
[Site "New York"]
[Date "2020.02.29"]
[Round "5"]
[White "Yudasin, Leonid"]
[Black "Noboa Silva, Kevin"]
[Result "1/2-1/2"]
[ECO "C00"]
[WhiteElo "2481"]
[BlackElo "2329"]
[Annotator "TA"]
[PlyCount "58"]
[EventDate "2020.02.27"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 12,58,13,13,12,0,35,26,48,20,20,0,0,2,7,16,19,7,27,13,27,31,14,0,0,0,0,
0,0,0,0,0,16,8,11,11,11,11,11,14,56,46,72,8,8,8,15,-22,-16]} 1. e4 e6 2. Qe2 c5
3. Nf3 Nc6 4. g3 d6 5. Bg2 Nf6 6. O-O Be7 7. c3 O-O {C00: French: Unusual
White 2nd moves.} 8. Rd1 Bd7 {8...b6 is becoming the main line.} 9. d4 cxd4 {
White has an edge.} 10. cxd4 d5 {[#]} 11. exd5 $146 ({Predecessor:} 11. e5 Ne4
12. Be3 f6 13. exf6 Bxf6 14. Nc3 Nd6 15. b3 Nf5 16. Rac1 Kh8 17. Qd2 {1-0 (72)
Schwabeneder,F (2403)-Milov,L (2463) Germany 2019}) 11... Nxd5 12. Nc3 Nxc3 13.
bxc3 Rc8 14. Bf4 Qa5 15. Qd3 Rfd8 16. a4 Be8 17. h4 h6 18. Nd2 Nb8 19. Nc4 Qa6
20. Bf1 Nd7 $1 21. Nd6 Bxd6 22. Qxa6 bxa6 23. Bxd6 {[#] Hoping for Be7.} Rxc3
24. Be7 $36 {[%mdl 2048] White has some pressure.} Rb8 25. a5 Rbb3 26. Rdc1 Nb8
{[#]} 27. Rxc3 (27. Bc4 $1 $16 {[%cal Rc4b3]} Rxc1+ 28. Rxc1) 27... Rxc3 $11 {
The position is equal.} 28. Bc5 Bb5 29. Bxa7 {Threatens to win with Bxb5.} Bxf1
{Accuracy: White = 82%, Black = 88%.} 1/2-1/2

[Event "Marshall Chess Club IM 2020"]
[Site "New York"]
[Date "2020.02.29"]
[Round "5"]
[White "Sarkar, Justin"]
[Black "Nestorovic, Nikola"]
[Result "1/2-1/2"]
[ECO "D37"]
[WhiteElo "2373"]
[BlackElo "2469"]
[Annotator "TA"]
[PlyCount "103"]
[EventDate "2020.02.27"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,103,21,27,26,29,13,17,0,53,50,52,43,76,70,61,0,0,0,0,0,0,0,18,28,27,
39,30,34,26,33,35,12,25,18,39,5,13,6,101,108,85,85,104,104,115,75,79,87,78,78,
87,80,76,68,73,75,99,39,39,31,35,34,97,24,24,12,14,16,15,0,0,0,0,0,0,0,0,0,0,0,
0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]} 1. d4 Nf6 2. c4 e6 3. Nf3 a6 4. Nc3 d5 5.
cxd5 exd5 6. Bg5 {D37: Queen's Gambit Declined: 5 Bf4.} Be6 7. Bxf6 Qxf6 8. Qb3
b6 (8... b5 $11) 9. g3 $14 ({Don't play} 9. Nxd5 Qd8 $15) 9... Qd8 {[#]} 10.
Ne5 $146 ({Predecessor:} 10. Bg2 Nd7 11. O-O Be7 12. Ne1 c6 13. Nd3 f5 14. Bh3
g6 15. e4 fxe4 16. Bxe6 exd3 {1/2-1/2 (87) Ringoir,T (2501)-Yu,J (2278)
Charlotte 2019}) 10... Bd6 11. Qa4+ Nd7 12. Qc6 (12. Nc6 $1 $14 b5 13. Nxd8
bxa4 14. Nxe6 fxe6 15. Nxa4) 12... Bxe5 $11 13. dxe5 O-O 14. f4 d4 15. Ne4 Nc5
{[#] And now ...Bd5 would win.} 16. Bg2 $1 Nxe4 17. Bxe4 Qe7 18. O-O Ra7 19.
Rfd1 Rd8 20. Qc2 g6 21. Bc6 f6 22. e3 fxe5 23. fxe5 Qc5 (23... dxe3 $11 {
remains equal.} 24. Rxd8+ Qxd8) 24. Qxc5 $16 bxc5 25. Rac1 Bxa2 26. Rxc5 d3 27.
Rc3 (27. e4 {keeps more tension.} Kf7 28. Kf2 Rb8 29. Rd2 Ke7 30. Ke3) 27...
Be6 28. Rcxd3 Rxd3 29. Rxd3 {[%mdl 4096] Endgame KRB-KRB} a5 30. Ra3 Ra6 31.
Bb5 Rb6 32. Rxa5 Kf7 33. Bd3 (33. h4 $16) 33... Rxb2 $14 34. Ra7 Rb3 35. Rxc7+
Kg8 (35... Kf8 $1 $14) 36. Bf1 (36. Rd7 $16) 36... Rxe3 $11 37. Re7 Bd5 {
The position is equal.} 38. Kf2 Rf3+ 39. Ke2 {[#] Threatens to win with Bg2.}
Ra3 {White must now prevent ...Bc4+.} 40. Kd2 Ra2+ 41. Ke3 Rxh2 42. Kd4 Kf8 43.
Ra7 Bf7 44. Bc4 Bxc4 45. Kxc4 {KR-KR} Rg2 46. Rxh7 Rxg3 47. Kd5 Ra3 48. e6 Ke8
49. Ke5 Re3+ 50. Kf6 {[%cal Rh7h8]} Rf3+ 51. Kxg6 Rf1 52. Kg5 {Accuracy: White
= 87%, Black = 87%.} 1/2-1/2

[Event "Marshall Chess Club IM 2020"]
[Site "New York"]
[Date "2020.02.29"]
[Round "5"]
[White "Cezila Jr, Rubens"]
[Black "Lund, Silas"]
[Result "1-0"]
[ECO "C65"]
[WhiteElo "2299"]
[BlackElo "2340"]
[Annotator "TA"]
[PlyCount "85"]
[EventDate "2020.02.27"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,85,21,22,17,25,5,11,8,12,-22,0,-22,20,10,12,5,15,14,38,17,43,43,56,41,
39,43,50,15,15,24,25,22,37,0,12,14,31,0,172,176,181,-264,-95,-86,-79,-83,-76,
-87,-76,-99,-72,-82,-106,-77,-77,-96,-31,-32,-31,-45,-41,-61,137,125,138,141,
219,138,559,554,725,683,726,701,670,661,29988,29988]} 1. e4 e5 2. Nf3 Nc6 3.
Bb5 Nf6 4. d3 Bc5 5. Bxc6 dxc6 6. Nbd2 {C65: Ruy Lopez: Berlin Defence (3...
Nf6), unusual lines and 4 0-0 Bc5.} Be6 {6...Nd7 is a critical line. Played by
Hikaru Nakamura in February 2020.} 7. Qe2 Nd7 8. Nb3 {The position is equal.}
Bb6 9. Bd2 {[#]} Qf6 $146 ({Predecessor:} 9... f6 10. Bc3 c5 11. Nbd2 Nb8 12.
a4 a6 13. Nc4 Nc6 14. a5 Ba7 15. b3 Nd4 16. Nxd4 cxd4 {0-1 (85) Li,D (2450)
-Chen,Q (2432) Tianjin 2018}) 10. Bc3 c5 11. Nbd2 c6 12. a4 Bc7 13. b3 O-O-O
14. a5 g5 15. Nc4 Bg4 16. b4 cxb4 17. Bxb4 Bxf3 18. gxf3 c5 19. Ba3 Rhe8 20.
O-O Re6 21. Ne3 Qh6 22. Nf5 Qh3 23. Kh1 Nf6 $2 ({Don't play} 23... Bxa5 24.
Bxc5 $1 {[%mdl 512]} Bc3 25. Be7 $14) (23... f6 $11 {and Black has nothing to
worry.}) 24. Bxc5 $18 Nh5 {Hoping for ...Nf4.} 25. Be3 $4 {[%mdl 8192] [#]} (
25. Rg1 $18 {and all is fine.}) 25... Nf4 $2 (25... Ng7 $1 $19 {[%cal Rg7f5]
[%mdl 512] is more deadly.} 26. Bxg5 (26. a6 $2 Nxf5 27. axb7+ Kxb7 $19) (26.
Nxg7 Rh6) 26... Nxf5 27. exf5 e4) 26. Bxf4 $17 exf4 27. Rfe1 {[#]} Rd5 $1 {
[%cal Rd5f5] ...Rxf5 is the strong threat.} 28. Qf1 Qxf3+ 29. Qg2 Qxg2+ 30.
Kxg2 Rxa5 31. Rxa5 Bxa5 {[%mdl 4096] Endgame KRB-KRN} 32. Ra1 Bb6 (32... Bc7
$17) 33. Kf3 $15 a5 34. d4 Bc7 35. e5 f6 $2 (35... b5 $15 {stays ahead.}) 36.
Ng7 $16 {[%mdl 1024] White has strong compensation.} Ra6 37. e6 {Threatens to
win with e7.} Bd8 (37... Bd6 $16 {was necessary.}) 38. c4 {And now d5 would
win.} f5 $2 {[%mdl 8192] This costs Black the game.} (38... Be7 $16 {is a
better chance.}) 39. d5 $18 Bf6 40. Re1 Kd8 41. Nxf5 a4 42. d6 {Intending e7+
and mate.} a3 {Threatening ...Ra8.} 43. e7+ {Accuracy: White = 76%, Black =
54%.} 1-0

[Event "Marshall Chess Club IM 2020"]
[Site "New York"]
[Date "2020.02.29"]
[Round "5"]
[White "Fikiet, Alex"]
[Black "Bonin, Jay"]
[Result "1-0"]
[ECO "D37"]
[WhiteElo "2217"]
[BlackElo "2258"]
[Annotator "TA"]
[PlyCount "94"]
[EventDate "2020.02.27"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,94,27,30,20,27,27,22,21,37,27,37,26,60,49,58,60,48,52,165,156,256,267,
270,145,150,138,136,126,124,125,123,135,137,125,151,145,163,160,175,173,195,
190,189,194,195,167,167,166,168,168,168,167,193,142,147,148,156,128,143,139,
157,125,139,118,127,113,145,159,168,168,271,274,275,275,275,271,262,265,309,
225,224,221,258,258,258,0,213]} 1. d4 Nf6 2. c4 e6 3. Nf3 a6 4. Nc3 d5 5. cxd5
exd5 6. Bg5 {D37: Queen's Gambit Declined: 5 Bf4.} Be7 7. e3 c6 8. Bd3 Nbd7 9.
Qc2 Nf8 10. Ne5 Ng4 {And now ...Nxe5 would win.} 11. Bxe7 Qxe7 12. Nxg4 Bxg4
13. O-O Ng6 {[#]} (13... Nd7 $14) 14. Rae1 $1 $18 {[#]} Bf3 $146 (14... Qh4 $16
15. Qb3 Bc8) ({Predecessor:} 14... O-O 15. f4 Rad8 16. f5 Nh4 17. Qf2 Qf6 18.
Qf4 Bh5 19. g4 g5 20. Qg3 c5 21. dxc5 Qc6 22. gxh5 f6 23. Ne2 Qxc5 24. Nd4 {
1-0 (24) Kozak,M (2235)-Folta,J (1963) Ostrava 2003}) 15. gxf3 Nh4 16. Kh1 (16.
f4 $18) 16... Nxf3 $16 {( -> ...Qh4!)} 17. Qd1 Qf6 18. Be2 Nxe1 19. Qxe1 O-O
20. Rg1 Rae8 21. Qf1 Qh6 22. Bd3 f5 23. Ne2 Kh8 24. Qg2 g6 25. Qg3 Rf6 26. h4
Rg8 27. Qg5 Qxg5 28. hxg5 Rd6 29. Nf4 a5 30. Kg2 Kg7 31. Be2 (31. Rh1 $18)
31... Rh8 32. Nd3 h6 33. gxh6+ Rxh6 34. Nc5 b6 35. Nd3 g5 36. Rc1 Rh4 37. Kg1
Rdh6 {[#]} 38. Bf3 $1 f4 39. exf4 gxf4 (39... Re6 $142 40. Kg2 (40. fxg5 Rxd4
41. Ne1 Kg6 $11) 40... gxf4) 40. Ne5 $18 Rh3 41. Bg2 R3h5 42. Rxc6 ({Don't take
} 42. Nxc6 $6 Rg6 $18) 42... Rxc6 43. Nxc6 Kf6 44. Ne5 Ke6 45. Kf1 Rh2 46. Ng6
Kf5 47. Ne5 Ke6 {Accuracy: White = 80%, Black = 69%.} 1-0

[Event "Marshall Chess Club IM 2020"]
[Site "New York"]
[Date "2020.02.29"]
[Round "5"]
[White "Prilleltensky, Matan"]
[Black "Hallaeva, Bahar"]
[Result "1-0"]
[ECO "E14"]
[WhiteElo "2097"]
[BlackElo "2170"]
[Annotator "TA"]
[PlyCount "59"]
[EventDate "2020.02.27"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 19,59,18,36,21,57,64,75,72,72,72,93,85,108,69,326,216,868,866,839,826,
1201,1230,1154,1007,29989,29990,29991,1110,1088,466,495,416,1670,1664,1557,
1420,1362,1322,5481,1394,1296,1224]} 1. d4 Nf6 2. Nf3 e6 3. e3 b6 4. Bd3 Bb7 5.
O-O Be7 6. c4 O-O 7. Nc3 d5 8. cxd5 exd5 9. b3 Nbd7 10. Bb2 Re8 11. Ne5 {
E14: Queen's Indian: Classical Variation (4 e3).} Nxe5 12. dxe5 Nd7 13. f4 {
White is better.} ({Weaker is} 13. Qh5 g6 $17) 13... Bc5 14. Qe2 {[#]} d4 $146
({Predecessor:} 14... Nxe5 15. fxe5 Rxe5 16. Nd1 Bxe3+ 17. Nxe3 d4 18. Qf2 Rg5
19. Qxf7+ Kh8 20. Bxd4 {1-0 (20) Hildebrand,G-Berndt,M Germany North 1982}) 15.
Ne4 dxe3 16. Rad1 {Hoping for b4!} Qc8 $2 {[%mdl 8192]} ({Black should play} 
16... Qe7 $1 $14) 17. Kh1 a5 $2 (17... h6 18. Qg4 Nxe5 19. Nf6+ {[%mdl 64]
Double Attack} Kh8 20. fxe5 (20. Bxe5 Qxg4 21. Nxg4 h5 $11) 20... Qxg4 21. Nxg4
Rad8) 18. Ng5 $18 {Black must now prevent Qh5!} Nf8 {[#]} 19. e6 $1 {[%mdl 512]
aiming for Qh5.} Rxe6 {[#]} (19... fxe6 20. Qh5) 20. Qh5 $1 {[%mdl 512]} Rg6
21. f5 $1 {[%cal Rf5g6]} ({Not} 21. Bc4 Qf5 $11) 21... Qe8 22. fxg6 hxg6 {[#]}
23. Qg4 (23. Bxg6 $142 $1 {[%mdl 512]} Bxg2+ {[%mdl 64] Decoy} (23... fxg6 24.
Rxf8+) 24. Kxg2 Qc6+ 25. Be4 $1 {[%mdl 576] Skewer} Qh6 26. Rxf7 Qxg5+ {
[%mdl 64] Remove Defender} 27. Qxg5 Kxf7 28. Qxg7+ Ke8 29. Bc6+ Nd7 30. Qxd7+ {
[%mdl 64] Double Attack} Kf8 31. Qg7#) 23... Bd5 {[#]} 24. Rde1 (24. Nxf7 $142
$1 {[%mdl 512]} Be6 {[#]} (24... Bxf7 25. Rxf7) 25. Nh6+ $1 {[%mdl 512]} Kh8
26. Qf4) 24... Rd8 25. Bc4 Bb4 {[#]} (25... f6 $142 26. Bxd5+ Rxd5) 26. Rxf7 $1
{[%mdl 576] X-Ray Attack. White is clearly winning.} Bxf7 27. Bxf7+ Qxf7 28.
Nxf7 Re8 29. Re2 Kxf7 30. Qc4+ {[%mdl 64] Double Attack. Black got outplayed
after the opening. Accuracy: White = 58%, Black = 37%.} 1-0

[Event "Marshall Chess Club IM 2020"]
[Site "New York"]
[Date "2020.02.29"]
[Round "6"]
[White "Nestorovic, Nikola"]
[Black "Hallaeva, Bahar"]
[Result "1-0"]
[ECO "C54"]
[WhiteElo "2469"]
[BlackElo "2170"]
[Annotator "TA"]
[PlyCount "111"]
[EventDate "2020.02.27"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,111,9,16,10,10,14,33,26,29,25,22,27,34,38,34,27,46,13,10,10,40,26,38,
40,40,35,44,38,101,102,103,97,98,103,102,81,95,92,97,68,141,87,95,89,102,87,
105,102,129,102,143,84,85,85,82,84,84,84,129,118,183,194,174,175,175,181,195,
183,180,125,124,120,312,305,434,461,401,387,471,471,463,435,504,473,696,661,
29971,29972,29971,29973,29973,29974,29974,29974,29974,29975,29980,29981,29981,
29980,29982,29983,29983,29984]} 1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. d3 Bc5 5. c3
O-O 6. a4 {C54: Giuoco Piano: 4 c3 Nf6, main lines with 5 d4 and 5 d3.} a5 7.
O-O d5 8. exd5 {White is slightly better.} Nxd5 9. Nbd2 Nb6 10. Bb5 f6 {[#]}
11. d4 $1 {[%mdl 512]} exd4 12. Nb3 Bd6 13. Nbxd4 Ne5 14. Nxe5 Bxe5 15. Qb3+ {
[#]} Kh8 $146 ({Predecessor:} 15... Qd5 16. Qxd5+ Nxd5 17. Bc4 c6 18. Bxd5+
cxd5 19. Nb5 Bd7 20. Rd1 Rfd8 21. Be3 Bc6 {1/2-1/2 (39) Demchenko,A (2589)
-Georgescu,T (2475) Iasi 2015}) 16. Rd1 $36 {[%mdl 2048] Black is under
pressure.} Qe7 17. Be3 Bg4 18. Re1 Qf7 (18... c5 $14) 19. Qxf7 $16 Rxf7 {[#]}
20. h3 $1 {[%cal Rh3g4]} Bd7 21. Nf3 Bxb5 22. Nxe5 fxe5 23. axb5 Nc4 24. Bc1
Rf5 ({Black should play} 24... Re7 $14) 25. b3 (25. Ra4 $142 Nb6 26. Rae4)
25... Nd6 26. c4 b6 27. Ba3 Re8 28. Rad1 Rf6 29. Rd5 e4 30. Re3 (30. Bxd6 $142
Rxd6 31. Rxd6 cxd6 32. f4) 30... Kg8 31. Bxd6 Rxd6 32. Rxd6 cxd6 {[%mdl 4096]
Endgame KR-KR} 33. f3 Kf7 34. Rxe4 ({Much less strong is} 34. fxe4 Ke6 $14)
34... Ra8 (34... Rd8 $16) 35. Kf2 $18 a4 36. bxa4 Rxa4 37. Ke3 {Hoping for Kd4.
} Ra2 38. g3 Rg2 39. Kf4 (39. g4 $18) 39... Rd2 $16 40. h4 d5 $2 {[#] Black
cannot hold the game after this.} (40... Rd3 $16) 41. Ke3 $1 $18 {[%cal Re3d2]}
Rb2 (41... Rd1 $142 42. Ke2 Rb1 43. cxd5 Rxb5) 42. cxd5 Rxb5 43. Kd4 Rb1 44. d6
Rd1+ 45. Ke5 Rd3 46. g4 Rxf3 (46... Ke8 $142 47. Rc4 Re3+ 48. Kf4 Re6) 47. Kd5
Rc3 48. d7 {White mates.} Rd3+ 49. Kc6 Rc3+ 50. Kxb6 Rb3+ 51. Kc7 Rc3+ 52. Kd8
Rd3 53. Re7+ Kf8 54. Re8+ Kf7 55. Kc7 Rc3+ 56. Kb6 {Accuracy: White = 89%,
Black = 62%.} 1-0

[Event "Marshall Chess Club IM 2020"]
[Site "New York"]
[Date "2020.02.29"]
[Round "6"]
[White "Sarkar, Justin"]
[Black "Cezila Jr, Rubens"]
[Result "1/2-1/2"]
[ECO "B51"]
[WhiteElo "2373"]
[BlackElo "2299"]
[Annotator "TA"]
[PlyCount "26"]
[EventDate "2020.02.27"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 10,26,20,20,20,20,20,12,19,20,16,16,6,6,8,0,13,0,7]} 1. e4 c5 2. Nf3 d6
3. d4 cxd4 4. Qxd4 e5 5. Bb5+ Nd7 6. Qd3 {The position is equal.} a6 {B51:
Sicilian: Moscow Variation (3 Bb5+) without 3...Bd7.} 7. Bxd7+ Bxd7 8. c4 b5 9.
Nc3 {[%cal Rc4b5]} bxc4 10. Qxc4 Be6 11. Qc6+ Bd7 12. Qc4 Be6 13. Qc6+ Bd7 {
An uneventful encounter.} 1/2-1/2

[Event "Marshall Chess Club IM 2020"]
[Site "New York"]
[Date "2020.02.29"]
[Round "6"]
[White "Lund, Silas"]
[Black "Fikiet, Alex"]
[Result "0-1"]
[ECO "D21"]
[WhiteElo "2340"]
[BlackElo "2217"]
[Annotator "TA"]
[PlyCount "54"]
[EventDate "2020.02.27"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,54,-48,-54,-66,0,0,16,-23,-26,-43,0,-103,-94,-66,-72,-84,0,0,0,0,77,0,
0,0,0,-2,-6,-42,-9,-65,0,-14,-14,-26,-14,-26,-24,-92,-50,-236,-227,-224,-235,
-434,-427,-29993,-29994]} 1. d4 d5 2. c4 dxc4 3. Nf3 a6 4. a4 Nc6 5. e4 Bg4 {
[#]} 6. d5 $146 {D21: Queen's Gambit Accepted: 3 Nf3 sidelines.} ({Predecessor:
} 6. Bxc4 e6 7. Be3 Bxf3 8. gxf3 Qf6 9. e5 Qh4 10. f4 O-O-O 11. Nc3 Bc5 12. Ne2
Nxd4 13. Nxd4 Bxd4 {0-1 (37) Cofman,V (2205)-Vorobiov,E (2566) Neustadt an der
Weinstrasse 2019}) 6... Ne5 (6... Na5 $15) 7. Bf4 $11 Ng6 8. Be3 {The position
is equal.} e6 9. Bxc4 {Strongly threatening Qb3.} Nh4 (9... Ne5 $5 10. Be2 Bxf3
11. gxf3 exd5 $11) 10. O-O {[#]} (10. Kf1 $11) 10... Bxf3 $1 $17 11. gxf3 Qf6 {
[%mdl 64] Double Attack} 12. Kh1 Nxf3 ({Black should play} 12... O-O-O $17 13.
Qe2 exd5 14. Bxd5 Bb4) 13. Nd2 $1 $11 {[%cal Rd2f3]} Nxd2 14. Bxd2 Nh6 (14...
O-O-O $11 {keeps the balance.}) 15. Bxh6 (15. Rg1 $16) 15... Qxh6 $40 {[%mdl
128] White needs to defend precisely.} 16. dxe6 fxe6 {aiming for ...Bd6.} 17.
f4 Rd8 18. Qe1 Bc5 19. Rd1 (19. b4 $11 Be7 20. Rd1) 19... Qf6 ({Black should
try} 19... Rxd1 $15 20. Qxd1 Rf8) 20. e5 Qf5 21. Rxd8+ Kxd8 22. Qd1+ Kc8 {
...Qe4+ is the strong threat.} 23. Bd3 (23. Qb1 $11) 23... Qh3 24. f5 $2 {
This costs White the game.} (24. Qf3 $15 Qxf3+ 25. Rxf3) 24... Rd8 $19 25. Rf3
Qg4 26. f6 $2 (26. Qf1 {was worth a try.}) 26... gxf6 {( -> ...Rg8)} 27. exf6 {
[#]} (27. Qf1 $19 fxe5 28. b3) 27... Rg8 {Accuracy: White = 41%, Black = 58%.}
0-1

[Event "Marshall Chess Club IM 2020"]
[Site "New York"]
[Date "2020.02.29"]
[Round "6"]
[White "Noboa Silva, Kevin"]
[Black "Prilleltensky, Matan"]
[Result "0-1"]
[ECO "D10"]
[WhiteElo "2329"]
[BlackElo "2097"]
[Annotator "TA"]
[PlyCount "112"]
[EventDate "2020.02.27"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 18,112,26,18,23,5,27,26,39,27,44,41,61,58,62,54,57,52,60,60,42,0,0,0,-1,
-1,0,-1,0,-611,-596,-732,-734,-737,-733,-738,-731,-704,-727,-720,-697,-774,
-746,-766,-687,-754,-724,-1306,-1308,-1204,-1103,-1679,-1618,-29957,-972,
-29968,-29969,-29969,-29970,-29971,-29971,-29971,-29970,-29969,-29967,-29968,
-29969,-29969,-29968,-29971,-29971,-29972,-29972,-29975,-29974,-29972,-29973,
-29974,-29975,-29975,-29976,-29976,-29977,-29977,-29978,-29978,-29973,-29972,
-29973,-29973,-29974,-29976,-29977,-29977,-29978,-29978,-29978]} 1. d4 d5 2. c4
c6 3. Nc3 Nf6 4. cxd5 cxd5 5. Bf4 Nc6 6. e3 a6 7. Bd3 Bg4 8. Nge2 e6 9. O-O Be7
10. Rc1 O-O {D10: Slav Defence: 3 cxd5 (without early Nf3) and 3 Nc3.} 11. Na4
Nd7 12. a3 Rc8 {White has an edge.} 13. b4 e5 14. dxe5 Ncxe5 15. Rxc8 Qxc8 16.
Bxe5 Nxe5 17. Nb6 $1 {[%cal Rb6c8]} Qe6 {[#]} 18. Nxd5 $1 {[%mdl 512]} Rd8 (
18... Qxd5 19. Bxh7+) 19. e4 {[#]} (19. Be4 $5 {[%cal Rf2f3]}) 19... Nf3+ $146
{[%mdl 512]} ({Predecessor:} 19... Bxb4 20. axb4 Nxd3 21. f3 Rxd5 22. exd5 Qe3+
23. Kh1 Bd7 24. Qc2 Nf2+ 25. Kg1 Nd3+ 26. Kh1 Nf2+ 27. Kg1 Ne4+ 28. Kh1 Nf2+
29. Kg1 Nh3+ 30. Kh1 Nf2+ {1/2-1/2 (30) Moutousis,K (2438)-Nikolaidis,I (2554)
Chania 2011}) 20. gxf3 Bxf3 21. Nxe7+ Qxe7 22. Qd2 {And now Qe3 would win.} Qh4
{( -> ...Qg4+)} 23. Rc1 $2 {[%mdl 8192] [#] Black converts the advantage
convincingly.} (23. Rb1 $11 Qg4+ 24. Ng3) 23... Bxe2 $1 $19 {[%mdl 64]
Overworked Piece} 24. Qxe2 {Rc7 is the strong threat.} Qg5+ {[%mdl 64] Double
Attack} 25. Kf1 Qxc1+ {[%mdl 4160] Endgame Double Attack. KQR-KQB} 26. Kg2 Qxa3
27. Bc4 Qxb4 28. Bd5 Qe7 {aiming for ...Rxd5!} 29. Qc4 Qd7 30. h3 Rc8 31. Qb3
Qe7 32. Qxb7 Qxb7 33. Bxb7 {KR-KB} Re8 34. Bxa6 Rxe4 35. Bd3 Rd4 (35... Rb4
$142 36. Kf3 g6 37. Be4 Kg7 38. Bd5 h5 39. Ke3 g5 40. Kf3 f5 41. Kg3 Kf6 42.
Kh2 h4 43. Kg2 Ke5 44. Bc6 g4 45. Kh2 Kf4 46. Kg2 Rb2 47. Kg1 gxh3 48. Ba4 Ra2
49. Bc6 Kg4 50. Kf1 h2 51. Ke1 {[#]} h1=Q+ $1 {[%mdl 512]} 52. Bxh1 Ra1+ 53.
Ke2 Rxh1 54. Kd3 h3 55. Kc3 h2 56. Kc4 Rc1+ 57. Kd5 h1=Q+ 58. f3+ Qxf3+ 59. Kd6
Qc6+ 60. Ke7 Qc7+ 61. Kf8 Re1 62. Kg8 Re8#) 36. Bc2 g6 {Black mates.} 37. Kg3
Kg7 38. Kg2 Kf6 39. Bb3 Rb4 40. Bd5 Rb5 41. Bc4 Rc5 42. Bb3 Rc7 43. Ba2 Ke5 44.
Bb3 Kf4 45. Bd5 f5 46. Bf3 Kg5 47. Kg3 Rc3 48. h4+ Kf6 49. Kf4 h6 50. Kg3 Ke5
51. Kg2 Kf4 52. Be2 Rc2 53. Bd1 {[#]} Rd2 $1 54. Bf3 h5 55. Bc6 Kg4 56. Be8 Rd6
{Accuracy: White = 67%, Black = 94%.} 0-1

[Event "Marshall Chess Club IM 2020"]
[Site "New York"]
[Date "2020.02.29"]
[Round "6"]
[White "Bonin, Jay"]
[Black "Yudasin, Leonid"]
[Result "1/2-1/2"]
[ECO "E18"]
[WhiteElo "2258"]
[BlackElo "2481"]
[Annotator "TA"]
[PlyCount "40"]
[EventDate "2020.02.27"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 17,24,20,14,0,17,17,19,25,32]} 1. Nf3 Nf6 2. c4 e6 3. g3 b6 4. Bg2 Bb7
5. d4 Be7 6. Nc3 d5 7. cxd5 exd5 8. Bg5 O-O 9. O-O Nbd7 10. Ne5 {E18: Queen's
Indian: Old Main Line (4 g3 Bb7 5 Bg2 Be7 6 0-0 0-0 7 Nc3).} Ne4 11. Bxe7 Qxe7
12. Nxd7 Qxd7 {[#] A rather calm draw.} {Predecessor:} 13. Rc1 $146 Rac8 14.
Qd3 Rfe8 15. Rfe1 c5 16. dxc5 Nxc5 17. Qd2 Red8 18. b4 Ne6 19. Red1 d4 20. Ne4
h6 {1-0 (20) Djordjevic,B-Kovacevic,P (2016) Belgrade 2019} 1/2-1/2

[Event "Marshall Chess Club IM 2020"]
[Site "New York"]
[Date "2020.03.01"]
[Round "7"]
[White "Yudasin, Leonid"]
[Black "Lund, Silas"]
[Result "1/2-1/2"]
[ECO "C65"]
[WhiteElo "2481"]
[BlackElo "2340"]
[Annotator "TA"]
[PlyCount "23"]
[EventDate "2020.02.27"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 12,23,16,4,6,4,13,8,2,0,0,0,6,10]} 1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6 4. d3
Bc5 5. O-O d6 6. c3 O-O 7. h3 {The position is equal.} Bb6 {C65: Ruy Lopez:
Berlin Defence (3...Nf6), unusual lines and 4 0-0 Bc5.} 8. Nbd2 Ne7 9. Nc4 Ng6
10. Nxb6 axb6 11. Re1 Bd7 {[#]} 12. Bxd7 $146 {An uneventful encounter.} ({
Predecessor:} 12. Bc4 Ba4 13. Bb3 Bxb3 14. Qxb3 Re8 15. Bd2 h6 16. Rad1 Qd7 17.
a3 Re6 18. c4 {1/2-1/2 (55) Kosintseva,T (2539)-Shen,Y (2453) Sochi 2009})
1/2-1/2

[Event "Marshall Chess Club IM 2020"]
[Site "New York"]
[Date "2020.03.01"]
[Round "7"]
[White "Cezila Jr, Rubens"]
[Black "Nestorovic, Nikola"]
[Result "0-1"]
[ECO "C70"]
[WhiteElo "2299"]
[BlackElo "2469"]
[Annotator "TA"]
[PlyCount "86"]
[EventDate "2020.02.27"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,86,33,42,44,39,0,6,6,31,6,22,20,21,22,22,0,0,-1,0,0,18,0,-14,-32,0,0,
0,0,2,-23,8,-39,-22,-35,-21,-18,-11,-47,-11,-95,-99,-120,-117,-117,-118,-106,
-102,-144,-106,-171,-179,-183,-152,-254,-254,-254,-251,-268,-254,-289,-252,
-260,-253,-332,-345,-325,-270,-295,0,-314,-314,-375,-377,-416,-414,-558,-555,
-509,-523]} 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 g6 5. O-O Bg7 6. c3 {C70: Ruy
Lopez: 3...a6 4 Ba4, Norwegian and Delayed Schliemann.} Nge7 7. d3 O-O 8. Re1 {
The position is equal.} d6 9. Nbd2 {[%cal Bb1d2,Bd2f1,Bf1e3][%mdl 32]} h6 (9...
b5 $5 {[%cal Rb5a4]} 10. Bb3 Bd7 $11) 10. Bb3 Kh8 11. Nf1 f5 {[#]} 12. Ne3 $146
({Predecessor:} 12. exf5 Nxf5 13. h3 Qf6 14. Be3 Bd7 15. Bd5 Nfe7 16. Bxc6 Bxc6
17. N1h2 Nf5 18. Qd2 Nxe3 19. Qxe3 {1/2-1/2 (75) Massoni,M (2381)-Vachier
Lagrave,M (2705) Bastia 2012}) 12... f4 13. Nf1 Bg4 14. h3 Bh5 15. N1h2 g5 16.
Be6 Rf6 17. Bg4 Bxg4 18. hxg4 Qd7 19. Nd2 Ng6 20. Qb3 Rff8 21. a4 a5 $36 {
[%mdl 2048] White is under pressure.} 22. Qb5 Nge7 23. f3 Ng8 24. b4 (24. b3
$11) 24... Ra6 $17 25. bxa5 Rxa5 26. Qb3 Rfa8 27. Nc4 R5a7 28. Qb5 b6 29. a5 {
[#]} (29. Bb2 $17) 29... Nf6 $1 $19 30. a6 Nb8 31. Rb1 (31. Na3 $17) 31... Qxb5
({Don't do} 31... Nxa6 32. Rd1 $19) 32. Rxb5 Nfd7 33. Nf1 Rxa6 34. Kf2 Nc6 35.
Ke2 Ra2+ 36. Nfd2 Nc5 37. Bb2 Na4 38. Rb3 Nc5 39. Rb5 R8a4 40. Rb1 Na7 41. Rb4
b5 42. Na3 Rxb4 43. cxb4 Na4 {Accuracy: White = 54%, Black = 79%.} 0-1

[Event "Marshall Chess Club IM 2020"]
[Site "New York"]
[Date "2020.03.01"]
[Round "7"]
[White "Fikiet, Alex"]
[Black "Sarkar, Justin"]
[Result "1/2-1/2"]
[ECO "A40"]
[WhiteElo "2217"]
[BlackElo "2373"]
[Annotator "RC"]
[PlyCount "65"]
[EventDate "2020.02.27"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
[TimeControl "5400+30"]

1. d4 {[%emt 0:00:00]} g6 {[%emt 0:00:29]} 2. c4 {[%emt 0:00:16]} Bg7 {[%emt 0:
00:58]} 3. Nc3 {[%emt 0:00:18]} c5 {[%emt 0:02:24]} 4. d5 {[%emt 0:00:10]}
Bxc3+ {[%emt 0:00:33]} 5. bxc3 {[%emt 0:00:01]} f5 {[%emt 0:00:07]} 6. e4 {
[%emt 0:01:35]} fxe4 {[%emt 0:00:16]} 7. f3 {[%emt 0:00:24]} e5 {[%emt 0:04:35]
} 8. Qc2 {[%emt 0:14:24]} Nf6 {[%emt 0:01:12]} 9. fxe4 {[%emt 0:01:03]} d6 {
[%emt 0:01:18]} 10. Bd3 {[%emt 0:01:46]} O-O {[%emt 0:00:36]} 11. Nf3 {[%emt 0:
03:00]} Kg7 {[%emt 0:10:18]} 12. O-O {[%emt 0:02:49]} h6 {[%emt 0:00:35]} 13.
Qd2 {[%emt 0:06:39]} Ng8 {[%emt 0:00:43]} 14. Qf2 {[%emt 0:02:39]} Nd7 {
[%emt 0:04:04]} 15. g4 {[%emt 0:12:27]} Ndf6 {[%emt 0:13:46]} 16. h3 {[%emt 0:
04:20]} h5 {[%emt 0:03:20]} 17. g5 {[%emt 0:00:28]} Ne8 {[%emt 0:09:19]} 18.
Qg3 {[%emt 0:00:17]} Qe7 {[%emt 0:03:41]} 19. Bd2 {[%emt 0:01:08]} Bd7 {
[%emt 0:02:55]} 20. Rf2 {[%emt 0:01:45]} Nc7 {[%emt 0:07:53]} 21. Raf1 {
[%emt 0:01:47]} Rf7 {[%emt 0:01:32]} 22. Nh4 {[%emt 0:01:59]} Rxf2 {[%emt 0:00:
38]} 23. Rxf2 {[%emt 0:00:12]} Rf8 {[%emt 0:12:33]} 24. Nf5+ {[%emt 0:01:47]}
gxf5 {[%emt 0:00:07]} 25. exf5 {[%emt 0:00:01]} Bxf5 {[%emt 0:01:42]} 26. Rxf5
{[%emt 0:05:15]} Rxf5 {[%emt 0:01:30]} 27. Bxf5 {[%emt 0:00:01]} Qf7 {[%emt 0:
00:41]} 28. Be4 {[%emt 0:01:49]} Ne8 {[%emt 0:13:31]} 29. Qe3 {[%emt 0:16:09]}
Ne7 {[%emt 0:00:47]} 30. Bd3 {[%emt 0:06:57]} Nf5 {[%emt 0:00:42]} 31. Qf3 {
[%emt 0:01:54]} Kg6 {[%emt 0:01:08]} 32. Bc2 {[%emt 0:01:48]} Neg7 {[%emt 0:00:
12]} 33. Qf1 {[%emt 0:00:50]} 1/2-1/2

[Event "Marshall Chess Club IM 2020"]
[Site "New York"]
[Date "2020.03.01"]
[Round "7"]
[White "Hallaeva, Bahar"]
[Black "Noboa Silva, Kevin"]
[Result "0-1"]
[ECO "C01"]
[WhiteElo "2170"]
[BlackElo "2329"]
[Annotator "TA"]
[PlyCount "65"]
[EventDate "2020.02.27"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 17,65,35,35,17,31,14,58,36,48,53,39,43,52,32,114,0,0,0,0,0,0,-21,-18,
-102,-100,-95,-94,-87,-95,-110,-113,-181,-187,-172,-172,-189,-193,-405,-391,
-357,-335,-1266,-1043,-1039,-985,-29986,-29987,-29987,-29988,-29993]} 1. e4 e6
2. d4 d5 3. exd5 exd5 4. Bd3 Nc6 5. c3 Bd6 6. Qf3 Nge7 7. Ne2 Be6 8. Bf4 Ng6 9.
Bxd6 Qxd6 10. Nd2 {C01: French: Exchange Variation.} O-O-O 11. O-O {[#]} Rhe8
$146 ({Predecessor:} 11... Nge7 12. Qf4 h6 13. Qxd6 Rxd6 14. Nf4 Bf5 15. Be2 g5
16. Nh5 Ng8 17. Ng3 Bh7 {0-1 (53) Selvik,E (1422)-Suarez Gomez,P (1547)
Bratislava 2019}) 12. b4 {White is slightly better.} Qd7 {And now ...Bg4 would
win.} 13. h3 Nh4 14. Qh5 Bf5 15. Bb5 g5 ({Better is} 15... a6 $14 16. Bxc6 Qxc6
) 16. Qxg5 (16. g4 $1 $16) 16... Nxg2 $1 $11 17. Qxg2 Bxh3 18. Qh2 $1 {Black
must now prevent Rfe1.} Rg8+ $1 19. Ng3 {Rfe1 is the strong threat.} h5 $1 20.
Rfe1 (20. Nb3 $11 {remains equal.} h4 {[%mdl 64] Pin} 21. Nc5 hxg3 22. fxg3)
20... h4 $17 {[%mdl 64] Pin} 21. Bxc6 bxc6 22. Re3 hxg3 23. fxg3 Rh8 24. Rae1 {
[#]} (24. Qf2 $17) 24... Rdg8 $1 $19 25. Qf2 {[#]} Qd6 $1 26. Rf3 Kb8 27. Nb3
$2 (27. a4 {might work better.}) 27... Qh6 {Threatens to win with ...Bg4.} 28.
Rf6 Qh4 29. Re3 $2 {[#]} (29. Rf3 Qh5 30. Re5) 29... Bf5 $1 {[%csl Gh8][%cal
Rh4h1][%mdl 512]} 30. Re8+ (30. Qxf5 Qh1+) 30... Bc8 {( -> ...Qh1#)} 31. Rxc8+
Kxc8 {[%csl Gh8][%cal Rh4h1]} 32. Kf1 Rxg3 33. Ke2 {Accuracy: White = 48%,
Black = 85%.} 0-1

[Event "Marshall Chess Club IM 2020"]
[Site "New York"]
[Date "2020.03.01"]
[Round "7"]
[White "Prilleltensky, Matan"]
[Black "Bonin, Jay"]
[Result "1/2-1/2"]
[ECO "E20"]
[WhiteElo "2097"]
[BlackElo "2258"]
[Annotator "TA"]
[PlyCount "41"]
[EventDate "2020.02.27"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,41,29,61,56,50,31,56,66,82,64,90,89,137,133,274,263,260,247,245,184,
195,174,202,190,316,203,188,187,447,253,337,285,282,240]} 1. d4 Nf6 2. c4 e6 3.
Nc3 Bb4 4. f3 Nh5 5. Nh3 f5 6. e3 {E20: Nimzo-Indian: 4 g3 and 4 f3.} O-O 7.
Bd3 (7. Bd2 {with more complications.} Nc6 8. a3 Bd6 9. g3 b6 10. Nf2) 7... Nc6
8. O-O {White is slightly better.} Bxc3 9. bxc3 {[#]} b6 $146 ({Predecessor:} 
9... d6 10. Qe2 Qh4 11. Bd2 e5 12. Be1 Qe7 13. f4 e4 14. Bc2 g6 15. Bb3 {
1/2-1/2 (15) Wilbrandt,S (2115)-Jakobsen,P (2182) Denmark 2017}) 10. e4 f4 11.
e5 {Hoping for Qc2.} Ba6 (11... Qh4 $16 12. Rb1 g6) 12. Qc2 $18 Kh8 13. Bxh7
Bxc4 14. Rd1 Ne7 15. Be4 Rb8 16. Qf2 {[#] Threatens to win with Qh4!} g5 (16...
Nf5 $142 17. Nxf4 Nxf4 18. Bxf4 g5) 17. Nxg5 {aiming for Qh4!} Nf5 18. Nh3 Nh4
$2 (18... Qh4 19. a4 Rf7) 19. Kh1 (19. g4 $142) 19... Bd5 20. Bxd5 exd5 21. Rg1
{Black got outplayed after the opening. Accuracy: White = 66%, Black = 30%.}
1/2-1/2

[Event "Marshall Chess Club IM 2020"]
[Site "New York"]
[Date "2020.03.01"]
[Round "8"]
[White "Nestorovic, Nikola"]
[Black "Noboa Silva, Kevin"]
[Result "0-1"]
[ECO "A47"]
[WhiteElo "2469"]
[BlackElo "2329"]
[Annotator "TA"]
[PlyCount "115"]
[EventDate "2020.02.27"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 16,115,10,6,6,11,12,-18,-8,-35,0,0,2,-7,7,8,20,19,34,17,18,20,29,15,10,
-27,-33,-36,70,69,0,-304,-302,-313,-295,-260,-282,-335,-319,-349,-345,-335,
-317,-315,-315,-300,-210,-331,-129,-110,0,0,0,-296,-272,-388,-361,-395,-346,
-422,-409,-422,-422,-406,-110,-618,-564,-782,-782,-735,-405,-323,-369,-516,
-510,-624,-575,-656,-647,-647,-647,-712,-717,-741,-733,-728,-725,-747,-308,
-291,0,-759,-755,-814,-781,-899,-899,-896,-877,-957,-979,-968]} 1. d4 e6 2. Nf3
Nf6 3. Nbd2 Be7 4. e3 b6 5. Bd3 Bb7 6. O-O O-O 7. b3 d6 8. Bb2 c5 9. Qe2 cxd4 {
A47: 1 d4 Nf6 2 Nf3 b6: Torre, London and Colle Systems.} 10. exd4 Nbd7 {
[%cal Bb8d7,Bd7f6,Bf6e4,Be4c5][%mdl 32]} 11. a4 Nd5 {[#] The position is equal.
} 12. Be4 $146 ({Predecessor:} 12. Bc4 Nf4 13. Qe3 Bg5 14. Nxg5 Qxg5 15. Qg3
Qf5 16. f3 d5 17. Bb5 a6 18. Bd3 Nxd3 19. cxd3 Qxd3 {0-1 (45) Sourgkounis,A 
(1916)-Tsakiris,H (2162) Achaia 2013}) 12... Nf4 13. Qe3 Bxe4 14. Nxe4 Nd5 15.
Qd2 N7f6 16. Ng3 a5 17. c4 Nb4 18. d5 e5 19. Nf5 {Hoping for Qg5!} Ne4 20. Qe3
Nc5 $36 {[%mdl 2048] Black is more active.} 21. Rad1 Re8 (21... Bf6 $15) 22.
Nxe5 $1 $14 dxe5 23. Nxg7 $2 {[%mdl 8192]} (23. f4 $1 $11 {and White is okay.})
23... Kxg7 $19 24. Qxe5+ f6 25. Qg5+ Kf7 $1 26. Qh5+ Kg8 27. Rd4 {Intending
Rg4+ and mate.} Bf8 28. Rg4+ Bg7 29. Rh4 h6 30. Rg4 {intending Qg6!} Kf8 {
And now ...Nbd3 would win.} (30... Nxb3 31. Qg6 $1 $11 {[%mdl 512]}) 31. Qg6 (
31. Bc1 $142 Re5 32. Qg6) 31... Qe7 $2 (31... Ra7 $19 {is more deadly.
Threatens to win with ...Nbd3.} 32. Bc1 f5 33. Qxf5+ Rf7) 32. Bc1 $17 Qf7 (
32... h5 $1 $17 {[%cal Rh5g4]} 33. Qxh5 Qd7) 33. Qh7 $1 $11 Qg8 34. Qg6 $2 {
[%mdl 8192]} (34. Rxg7 $1 $11 Qxh7 35. Rxh7) 34... Qh8 35. Rh4 (35. Rg3 {
was necessary.}) 35... Nbd3 $19 36. Be3 Re5 37. d6 {[%cal Rh4h6]} Rd8 38. Rxh6
Qg8 39. Rh7 {[#] Black must now prevent Rxg7!} Rd7 $2 ({Not} 39... Rxd6 {[#]}
40. Rxg7 $1 {[%mdl 512]} Qxg7 41. Bh6 $11) (39... Rxe3 $1 $19 {has better
winning chances.} 40. fxe3 Rxd6) 40. h4 $2 {[%mdl 8192]} (40. Bh6 $17) 40...
Re6 41. h5 Ne5 42. Qf5 Rexd6 {...Nf3+! is the strong threat.} 43. h6 Bh8 ({
Don't go for} 43... Nxb3 $2 44. hxg7+ Ke7 45. Rh8 $18) 44. Rxd7 Ncxd7 (44...
Nexd7 $2 45. Bxc5 Nxc5 46. Qc8+ Kf7 47. Qc7+ Rd7 48. Qxb6 $19) 45. h7 Qg6 46.
Qh3 Ng4 47. Bf4 Rd4 48. Bc1 Kg7 49. f3 Nge5 50. f4 Rd3 51. Qe6 Qf7 (51... Nf7
$142 52. Re1 Nc5 53. Qxb6 Nxb3) 52. Qf5 Qg6 53. Qe6 $1 {[%cal Re6g8] Strongly
threatening Qg8+.} Nf7 {Black is clearly winning.} 54. Qe8 Qxh7 55. f5 Qh4 56.
Bf4 Qg4 57. Qe4 Nc5 58. Qe1 {Accuracy: White = 58%, Black = 67%.} 0-1

[Event "Marshall Chess Club IM 2020"]
[Site "New York"]
[Date "2020.03.01"]
[Round "8"]
[White "Sarkar, Justin"]
[Black "Yudasin, Leonid"]
[Result "1/2-1/2"]
[ECO "D64"]
[WhiteElo "2373"]
[BlackElo "2481"]
[Annotator "TA"]
[PlyCount "38"]
[EventDate "2020.02.27"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 15,20,22,28,28,28,31,32]} 1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Be7 5. e3
O-O 6. Nf3 Nbd7 7. Qc2 c6 8. Rc1 b6 9. cxd5 {D64: Queen's Gambit Declined:
Classical: 7 Rc1 c6 8 Qc2.} cxd5 10. Bd3 Bb7 {[#]} {Predecessor:} 11. O-O $146
Rc8 12. Qb1 h6 13. Bf4 a6 14. a4 Nh5 15. Be5 Nhf6 16. Bg3 Nh5 17. Be5 Nhf6 18.
Bg3 Nh5 19. Be5 Nhf6 {1/2-1/2 (19) Rogozenco,D (2509)-Jaracz,P (2499) Czechia
2015} 1/2-1/2

[Event "Marshall Chess Club IM 2020"]
[Site "New York"]
[Date "2020.03.01"]
[Round "8"]
[White "Lund, Silas"]
[Black "Prilleltensky, Matan"]
[Result "1-0"]
[ECO "D12"]
[WhiteElo "2340"]
[BlackElo "2097"]
[Annotator "TA"]
[PlyCount "73"]
[EventDate "2020.02.27"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 12,73,29,36,30,24,24,0,3,-6,15,0,28,27,20,40,68,-57,-43,-90,82,80,86,59,
68,59,57,56,63,63,114,120,108,104,110,54,183,166,168,149,168,135,395,391,400,
411,1642,1630,1410,1105,1527,1524,29972,29972,29987,29988,29984,29985,29991,
29992,29993,29994,29998,29998]} 1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. e3 Bf5 5. Nc3
e6 6. Nh4 Be4 {is now more promising than 6...Bg6. Played by Xiangzhi Bu in
December 2019.} 7. f3 Bg6 {D12: Slav Defence: 3 Nf3 Nf6 4 e3 Bf5.} 8. Nxg6 hxg6
9. g3 Bd6 {The position is equal.} 10. f4 Nbd7 11. c5 Be7 12. b4 {[#]} O-O $146
({Predecessor:} 12... g5 13. Bd3 gxf4 14. exf4 b6 15. Rb1 Rb8 16. Qa4 Qc7 17.
a3 bxc5 18. bxc5 Rxb1 19. Nxb1 {1-0 (36) Afanasiev,N (2524)-Mullick,R (2252)
Voronezh 2019}) 13. Bd2 b6 14. Bd3 ({White should try} 14. Ba6 $14) 14... a5
$15 (14... bxc5 $6 15. bxc5 Rb8 16. O-O $16) 15. a3 {[%cal Ba2a3,Ba3b4][%mdl
32]} Qc7 $2 (15... axb4 $17 {keeps the pressure on.} 16. axb4 Rxa1 17. Qxa1
bxc5 18. bxc5 Nxc5 $1 {[%mdl 512]} 19. dxc5 d4 20. exd4 Qxd4 {[%mdl 64] Double
Attack}) 16. O-O $16 Ne8 17. g4 axb4 18. axb4 Rxa1 19. Qxa1 g5 20. Qe1 gxf4 (
20... Bf6 $14) 21. exf4 Bf6 22. Ne2 {g5 is the strong threat.} g6 23. Rf3 (23.
f5 $16 {Strongly threatening fxe6.} exf5 24. gxf5) 23... Kg7 (23... Ng7 $14)
24. g5 $18 {Hoping for f5.} Be7 25. f5 exf5 {[%cal Rb6c5] [#]} 26. Bxf5 $1 {
[%mdl 512]} bxc5 $2 {[%mdl 8192] This costs Black the game.} ({But not} 26...
gxf5 $2 27. Ng3 $18) (26... Qd8 $16 {might work better.}) 27. Nf4 Qd8 {[#]} 28.
Bxg6 $1 {[%mdl 512]} Bd6 (28... Bxg5 $142 29. Rg3 Qe7 30. Qxe7 Bxe7 31. Bf5+
Kh8 32. Rh3+ Kg8 33. Bxd7 cxb4) (28... fxg6 29. Ne6+) 29. Nh5+ Kg8 30. Bc2 cxd4
{[#]} 31. Nf6+ $1 {[%mdl 512]} Nexf6 (31... Ndxf6 32. gxf6) 32. gxf6 {White
mates.} Ne5 33. Qg3+ Ng6 {[#]} 34. Qg5 $1 {[%mdl 512]} Re8 35. Bxg6 Bxh2+ 36.
Kh1 Re5 37. Bf5+ {Accuracy: White = 81%, Black = 47%.} 1-0

[Event "Marshall Chess Club IM 2020"]
[Site "New York"]
[Date "2020.03.01"]
[Round "8"]
[White "Cezila Jr, Rubens"]
[Black "Fikiet, Alex"]
[Result "0-1"]
[ECO "D02"]
[WhiteElo "2299"]
[BlackElo "2217"]
[Annotator "TA"]
[PlyCount "136"]
[EventDate "2020.02.27"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 10,136,31,32,22,-1,4,-7,12,0,60,0,0,0,0,0,0,0,35,34,30,37,21,33,35,39,
24,34,27,-14,-22,-75,-71,-102,-85,-93,-100,-93,-112,-127,-127,-104,-121,-125,
-104,-108,-106,-127,-90,-201,-185,-249,-254,-238,-220,-287,0,-291,-209,-236,
-235,-234,-199,-198,-197,-292,-256,-383,-393,-381,-268,-602,-265,-228,-141,
-133,-137,-123,-143,-143,-125,-167,-146,-164,-150,-284,-278,-385,-384,-351,
-334,-317,-429,-475,-457,-483,-476,-466,-385,-506,-435,-461,-422,-395,-392,
-613,-618,-661,-661,-646,-505,-650,-627,-1644,-1502,-29972,-29976,-29978,
-29975,-29981,-29982,-29987,-29988,-29988,-29989,-29989,-29989,-29989,-29990]} 
1. Nf3 d5 2. g3 Nc6 3. d4 Bf5 4. Bg2 Nb4 5. Na3 e6 6. O-O h6 {D02: 1 d4 d5 2
Nf3 sidelines, including 2...Nf6 3 g3 and 2...Nf6 3 Bf4.} 7. c4 c6 8. Bd2 a5 {
The position is equal.} 9. c5 {[#]} b6 $146 ({Better is} 9... Nf6 $11) ({
Predecessor:} 9... Nf6 10. Ne5 {1/2-1/2 (10) Tadic,B (2517)-Miladinovic,I 
(2557) Cetinje 2012}) 10. cxb6 (10. Ne5 $14) 10... Qxb6 $11 11. Qa4 Bd6 12. Ne5
Ne7 13. e4 Bxe4 14. Bxe4 dxe4 15. Nac4 Qc7 $1 16. a3 Nbd5 17. Bxa5 Bxe5 18.
dxe5 O-O 19. b4 Qa7 20. Qb3 {[#]} (20. Qc2 $1 $11 {was the only way to keep
the balance.}) 20... Nf5 $1 $17 21. Kh1 e3 22. fxe3 Nfxe3 23. Nxe3 Nxe3 24.
Rfe1 Nf5 25. Rac1 {[#]} c5 $1 {[%mdl 512] ...Qb7+ is the strong threat.} 26.
Qd3 (26. bxc5 Qxa5) 26... cxb4 27. axb4 Rac8 28. Kg2 Nd4 {And now ...Qb7+
would win.} 29. Rxc8 (29. Kh3 $17) 29... Rxc8 $19 30. Re4 (30. Kf1 $142) 30...
Nf5 31. Re1 Qb7+ 32. Qe4 Qa7 $2 (32... Qa6 $19 33. Qe2 Rc4) 33. Kh1 $2 {
[%mdl 8192]} (33. Qd3 $1 $11) 33... Ne7 34. Ra1 Qf2 35. Qg2 Qd4 36. Re1 Nd5 37.
Qe4 (37. Qe2 {was necessary.}) 37... Qb2 {Threatens to win with ...Rc2.} 38.
Re2 (38. Qb1 {is the only way for White.} Qf2 39. Rf1) 38... Rc1+ 39. Kg2 Qa1 {
White must now prevent ...Rg1+.} 40. Kh3 $2 (40. Qf3) 40... Rg1 (40... Rf1 $142
41. Qg2 Rf5) 41. Rf2 Qd1 $40 {[%mdl 128] Black wants a kill.} 42. Qf3 Qxf3 43.
Rxf3 $17 {[%mdl 4096] Endgame [#] KRB-KRN} Rb1 $1 44. Rd3 Kh7 ({Not} 44... Nxb4
45. Rd8+ Kh7 46. Rb8 $16) 45. Rd4 g5 46. Kg2 Kg6 47. h4 (47. Rd2 $17) 47... Kf5
$19 48. hxg5 hxg5 49. Rd2 Kxe5 50. Rf2 f5 ({Less strong is} 50... Nxb4 51. Bxb4
Rxb4 52. Rxf7 $17) 51. Re2+ Kd6 52. Bd8 g4 53. Bg5 Rxb4 54. Ra2 Rb3 55. Ra8
Rb2+ 56. Kg1 Rc2 57. Ra4 (57. Ra6+ $142 Rc6 58. Ra7) 57... e5 58. Ra6+ Kc5 59.
Ra4 Rc4 60. Ra1 f4 61. Re1 Kd4 62. gxf4 exf4 {Black mates.} 63. Bh6 Kd3 64.
Rd1+ Ke4 65. Bf8 Ne3 66. Ra1 Kf3 67. Bd6 Rd4 68. Bc5 Rd2 {Accuracy: White =
47%, Black = 80%.} 0-1

[Event "Marshall Chess Club IM 2020"]
[Site "New York"]
[Date "2020.03.01"]
[Round "8"]
[White "Bonin, Jay"]
[Black "Hallaeva, Bahar"]
[Result "1/2-1/2"]
[ECO "D03"]
[WhiteElo "2258"]
[BlackElo "2170"]
[Annotator "TA"]
[PlyCount "71"]
[EventDate "2020.02.27"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 18,71,-3,-2,0,-4,-6,-25,-8,-38,-14,-26,0,-14,0,-4,0,-12,0,0,0,0,0,0,0,
-18,-9,-94,-91,-80,-55,-138,-139,-143,-149,-146,-143,-131,-143,-150,-148,-168,
-162,-156,-20,-19,-16,-15,-16,-18,-25,-16,0,0,0,-15]} 1. d4 Nf6 2. Nf3 e6 3.
Bg5 c5 4. c3 d5 5. e3 Nbd7 6. Nbd2 Be7 7. Bd3 O-O 8. O-O b6 9. Qa4 Bb7 10. Ne5
h6 {D03: 1 d4 d5 2 Nf3 Nf6 3 Bg5, including Torre Attack with early ...d5.} 11.
Bxf6 Nxf6 12. f4 Bd6 {Black has an edge.} 13. Rad1 Qe8 {[#]} 14. Qc2 $146 ({
Predecessor:} 14. Bb5 Qe7 15. Ba6 Rac8 16. Rf3 Rfd8 17. Bxb7 Qxb7 18. Rdf1 Ne4
19. Nxe4 dxe4 20. Rg3 {0-1 (34) Zhang Yushkov,N (2210)-Kharitonov,A (2185)
Novosibirsk 1998}) 14... Qc8 15. Qb1 Ba6 16. Rf3 Bxd3 17. Qxd3 Qb7 18. Rh3 Ne4
$36 {[%mdl 2048] Black has the initiative.} 19. Nxe4 dxe4 20. Qe2 cxd4 21. exd4
f5 22. g4 {[#]} (22. Ng6 $11 {remains equal.}) 22... Bxe5 $1 $17 23. dxe5 Qf7
24. Kh1 (24. gxf5 $15 Qxf5 25. Rh4) 24... fxg4 25. Qxg4 Qxf4 26. Qxe6+ Kh8 27.
Rg1 {[#]} Rae8 $1 {[%cal Re8e6]} 28. Qg6 {[%csl Gg1][%cal Rg6g7]} Re7 {aiming
for ...e3.} 29. Qd6 Rfe8 30. Rhg3 e3 ({Don't do} 30... Qxe5 31. Qxe5 Rxe5 32.
Rxg7 $15) ({Not} 30... Rxe5 31. Rxg7 Qf3+ 32. R7g2 $11) ({Black should play} 
30... Rf7 $17 {Threatens to win with ...e3.} 31. Re1 Rxe5 32. Qd8+ (32. Qb8+ $2
Kh7 $17) 32... Kh7) 31. Qd4 $11 Qxe5 32. Qxe5 Rxe5 33. Rxg7 e2 34. R7g6 {
[%cal Rg6h6]} Kh7 35. Rg7+ Kh8 36. R7g6 {White happily takes the draw.
Accuracy: White = 77%, Black = 81%.} 1/2-1/2

[Event "Marshall Chess Club IM 2020"]
[Site "New York"]
[Date "2020.03.02"]
[Round "9"]
[White "Yudasin, Leonid"]
[Black "Cezila Jr, Rubens"]
[Result "1/2-1/2"]
[ECO "B12"]
[WhiteElo "2481"]
[BlackElo "2299"]
[Annotator "TA"]
[PlyCount "53"]
[EventDate "2020.02.27"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 17,53,90,93,77,53,15,8,0,24,-37,-34,-29,-29,-53,-48,-26,26,34,40,0,0,4,
12,0,0,6,45,43,81,45,119,93,108,85,89,102,89,72]} 1. e4 c6 2. d4 d5 3. e5 Bf5
4. Nf3 e6 5. Be2 c5 6. O-O Nc6 7. c3 Qb6 8. dxc5 Bxc5 9. b4 Be7 10. Be3 {
B12: Caro-Kann: Advance Variation.} Qc7 11. Qa4 {And now b5 would win.} Kf8 12.
Bf4 {The position is equal.} g5 13. Nxg5 ({Better is} 13. b5 $1 $11) 13... Nxe5
$15 {[#] Strongly threatening ...h6.} 14. b5 $146 ({Predecessor:} 14. Kh1 Bd6
15. Na3 Nc4 16. Bxd6+ Nxd6 17. Rac1 f6 18. Nf3 e5 19. Nd2 Ne7 20. c4 {0-1 (60)
Genis,R (1947)-Graebner,W (2053) Frankfurt 2010}) 14... Bd6 15. Bg3 Ne7 16. Nf3
N5g6 (16... Kg7 $142) 17. Nbd2 $11 h5 18. Rfc1 {[#]} h4 $1 {[%mdl 512]} 19.
Bxd6 (19. Nxh4 Nxh4) 19... Qxd6 20. c4 Nf4 21. Bf1 $1 b6 22. cxd5 exd5 23. Kh1
f6 (23... Ne6 $14) 24. Nd4 $16 {White is better.} Bd7 25. Qc2 Rc8 26. Qb2 Kf7
27. Rxc8 {Accuracy: White = 74%, Black = 77%.} 1/2-1/2

[Event "Marshall Chess Club IM 2020"]
[Site "New York"]
[Date "2020.03.02"]
[Round "9"]
[White "Noboa Silva, Kevin"]
[Black "Bonin, Jay"]
[Result "1-0"]
[ECO "E90"]
[WhiteElo "2329"]
[BlackElo "2258"]
[Annotator "TA"]
[PlyCount "97"]
[EventDate "2020.02.27"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 20,96,97,68,116,115,127,79,180,170,163,91,152,142,139,139,304,304,305,
320,301,299,331,326,527,562,545,556,679,293,413,416,688,441,424,426,670,617,
577,589,633,595,714,680,783,715,981,966,1663,1545,1396,727,790,790,770,668,735,
0,1153,772,689,678,12838,12839,29980,29980,29989,12835,29981,8052,12839,12839,
12840,12840,29979,29978,29981,12842,29999]} 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4
d6 5. h3 c5 6. d5 b5 7. cxb5 a6 8. Nf3 O-O 9. a4 axb5 10. Bxb5 Ba6 11. Be3 {
is the legacy move (11.Bd2).} Ne8 {E90: King's Indian: Classical: Early
deviations and 6 h3.} 12. O-O Nc7 {[#]} 13. Qe2 $146 ({Predecessor:} 13. Qd2
Nd7 14. Bh6 Bxh6 15. Qxh6 f6 16. Qd2 Qc8 17. Ra3 Nb6 18. Raa1 Ra7 19. Rab1 {
1/2-1/2 (54) Alonso Rosell,A (2552)-Perez Mitjans,O (2496) Catalunya 2013})
13... f5 (13... Bxb5 $16 14. axb5 Nd7) 14. exf5 $18 Rxf5 15. Rad1 (15. Bg5 $18)
15... Nd7 (15... Bxb5 $142 16. axb5 Nd7) 16. g4 $16 Rf8 17. Ng5 h6 $2 (17...
Bxb5 $16 18. Nxb5 (18. axb5 Qe8 $14) 18... Re8) 18. Ne6 $18 Bxb5 19. axb5 Nxe6
20. dxe6 Nb6 {[#]} 21. Bxc5 $1 {[%mdl 576] Pin} Na4 $2 (21... Qb8) (21... dxc5
22. Rxd8) 22. Nxa4 Rxa4 {[#]} 23. Bxd6 $1 {[%mdl 512]} Qa8 {intending ...Re4.}
(23... exd6 24. e7) 24. Bg3 (24. Bxe7 $142 Re8 25. Rd7) 24... Re4 (24... Qe4
$142 25. Rfe1 Qxe2 26. Rxe2 Rb4) 25. Qc2 h5 (25... Rc8 $142 26. Qd3 Rf8) 26.
Rfe1 Rxe1+ 27. Rxe1 hxg4 (27... Qa5 $142) 28. hxg4 Qa5 29. Qe2 Bd4 30. Rf1 Qb6
31. Kg2 Rf6 32. Re1 g5 33. f3 Rh6 34. Qd2 Bf6 35. Qd7 Qc5 36. Qc6 Qd4 37. Qc2
Qb6 38. Qe2 Bd4 $1 39. b3 Bc3 40. Rc1 Rxe6 41. Qc4 Bd2 42. Rc2 Be3 43. Re2 (43.
Bc7 $142 Kf8 44. Bxb6 Rxb6 45. Qe4 Kf7 46. Qh7+ Kf6 47. Rc8 Ra6 48. bxa6) 43...
Kf8 44. Bf2 (44. Bc7 $142 Bd4 45. Bxb6 Rxe2+ 46. Qxe2 Bxb6 47. Qe6 Ba5 48. b6
Bd2 49. Qf5+ Ke8 50. b7) 44... Rh6 45. Qc8+ Kf7 46. Qf5+ Ke8 47. Rxe3 Qc7 48.
Qe5 (48. Qxg5 $142 Rh8 {[#]} 49. Qg7 $1 {[%mdl 512]} Qh2+ 50. Kf1 Qd6 51. Qxh8+
Kf7 52. Qh7+ Kf8 53. Rd3) 48... Qc1 49. Qxe7# {Accuracy: White = 58%, Black =
23%.} 1-0

[Event "Marshall Chess Club IM 2020"]
[Site "New York"]
[Date "2020.03.02"]
[Round "9"]
[White "Fikiet, Alex"]
[Black "Nestorovic, Nikola"]
[Result "0-1"]
[ECO "D37"]
[WhiteElo "2217"]
[BlackElo "2469"]
[Annotator "TA"]
[PlyCount "106"]
[EventDate "2020.02.27"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 9,106,27,25,20,27,25,34,22,22,15,22,25,32,-21,-11,-14,-14,-20,0,0,0,0,
14,10,12,11,15,0,35,30,18,0,26,0,0,0,62,23,14,5,54,10,10,8,18,10,17,0,19,13,38,
39,45,31,23,0,0,-29,-29,-78,-65,-127,-46,-106,-95,-100,-101,-154,-162,-154,
-165,-162,-159,-150,-73,-195,-191,-231,-225,-572,-377,-521,-542,-533,-525,-532,
-521,-499,-456,-665,-521,-568,-580,-535,-514,-810,-825,-796,-651]} 1. d4 Nf6 2.
c4 e6 3. Nf3 a6 4. Nc3 d5 5. cxd5 exd5 6. Bg5 {D37: Queen's Gambit Declined: 5
Bf4.} Be6 7. e3 Nbd7 8. h3 {White is slightly better.} Bd6 9. Bd3 c6 10. O-O
Qc7 11. Rc1 (11. Qd2 $14) 11... h6 $11 12. Bxf6 Nxf6 {[#]} 13. Na4 $146 ({
Predecessor:} 13. e4 dxe4 14. Nxe4 Nxe4 15. Bxe4 Qa5 16. a3 {1/2-1/2 (16)
Valerga,D (2502)-Slipak,S (2438) Villa Martelli 2013}) 13... Rd8 14. Qc2 O-O
15. Nc5 Bc8 16. b4 Rfe8 17. a4 Qe7 18. Nd2 Bb8 19. b5 cxb5 20. axb5 a5 21. Bf5
Ne4 22. Bxc8 {[#] Ncxe4 is the strong threat.} Nxd2 (22... Qc7 $11 23. f4 Nxd2
24. Qxd2 Rxc8) 23. Qxd2 (23. Bxb7 $5 {[%cal Rc2d2]} Nxf1 24. Kxf1 $14) 23...
Rxc8 24. Qa2 ({Reject} 24. Qxa5 Qd6 $15) 24... Rcd8 (24... Qd6 {is interesting.
} 25. g3 b6 26. Na6 Qe6 27. Nxb8 Rxc1 28. Rxc1 Rxb8 29. h4 Qf5) 25. Nd3 Qd6 {
[%csl Gb8][%cal Rd6h2] [#]} 26. Ne5 Qb6 27. Nf3 Bd6 28. Qa4 Bb4 29. Ne5 Re7 30.
Nd3 Bd6 31. Rc2 Rc7 32. Rfc1 Rdc8 33. Rxc7 Rxc7 34. Ra1 Rc3 35. Ne5 ({White
should play} 35. Nb2 $15) 35... Bb4 (35... f6 $17 36. Ng6 Rc4) 36. Nd7 (36. h4
$15) 36... Qc7 $17 37. b6 Qc6 38. Nc5 ({White should try} 38. Qxc6 Rxc6 39. Ne5
Rxb6 40. Kf1) 38... Qxa4 39. Nxa4 {[%mdl 4096] Endgame KRB-KRN} Rc2 40. Rb1 Kf8
41. Nb2 Rc6 ({Better is} 41... Ke7 42. Nd3 Bd6) 42. Na4 {Loses the game.} (42.
Nd3 $17 {is a better defense.}) 42... Ke7 43. Kf1 Kd6 44. Rb2 $2 (44. Ke2 {
is tougher.}) 44... Rc1+ $19 45. Ke2 Ra1 {Black is clearly winning.} 46. Nc5
Bxc5 47. dxc5+ Kxc5 {KR-KR} 48. Kd3 Ra3+ 49. Kc2 (49. Kd2 $142 a4 50. g3) 49...
Ra4 50. Kc3 Rc4+ 51. Kd3 a4 {[%cal Ba5a4,Ba4a3][%mdl 32]} 52. f3 (52. g4 $142
Rb4 53. Rc2+ Kxb6 54. Rc3) 52... a3 53. Ra2 Ra4 {Accuracy: White = 59%, Black
= 84%.} 0-1

[Event "Marshall Chess Club IM 2020"]
[Site "New York"]
[Date "2020.03.02"]
[Round "9"]
[White "Hallaeva, Bahar"]
[Black "Lund, Silas"]
[Result "1-0"]
[ECO "C54"]
[WhiteElo "2170"]
[BlackElo "2340"]
[Annotator "TA"]
[PlyCount "51"]
[EventDate "2020.02.27"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 11,51,10,22,10,7,-24,75,64,69,64,64,48,141,119,347,169,504,514,772,788,
731,729,987,909,809,850,796,709,941,850,1141,1125,1121,1103,1318,1299,29981,
29982,29982,333,29983,29984]} 1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. d3 d6 5. c3 Nf6
6. Bb3 h6 7. h3 {C54: Giuoco Piano: 4 c3 Nf6, main lines with 5 d4 and 5 d3.}
O-O 8. g4 {[#]} Be6 $146 (8... d5 $11 9. Nbd2 Be6) ({Predecessor:} 8... Nh7 9.
Nbd2 Be6 10. Bc2 d5 11. Qe2 a5 12. exd5 Bxd5 13. Ne4 Be7 14. a4 Qd7 {1-0 (40)
Tiviakov,S (2615)-Utegaliev,A (2502) Almaty 2019}) 9. g5 $1 $16 {White is
better.} hxg5 10. Bxg5 Bxb3 11. axb3 d5 {[#]} (11... Qe7 $14) 12. exd5 $1 Ne7
$2 {Black cannot hold the game after this.} ({Don't blunder} 12... Qxd5 $2 13.
Bxf6 e4 {[#]} 14. Rg1 $1 $18 {[%mdl 512]}) (12... Nb8 $16) 13. b4 (13. Bxf6
$142 {Rg1! is the strong threat.} gxf6 14. b4 Qxd5 15. Rg1+ Kh8 16. bxc5) 13...
Bb6 $2 (13... Bxf2+ 14. Kxf2 Nfxd5) 14. Bxf6 $1 $18 {Black must now prevent
Rg1!} gxf6 (14... Qd7 $142 15. Bxe7 Qxe7) 15. Rg1+ Ng6 16. Nh4 Qxd5 17. Nf5 Qd7
18. Qh5 e4 19. d4 Rae8 20. Rg2 c5 21. bxc5 Bxc5 22. Nd2 Bd6 23. Nxd6 Qxd6 24.
Rxg6+ fxg6 25. Qxg6+ {[%mdl 64] Double Attack} Kh8 26. Ra5 {Accuracy: White =
84%, Black = 30%.} 1-0

[Event "Marshall Chess Club IM 2020"]
[Site "New York"]
[Date "2020.03.02"]
[Round "9"]
[White "Prilleltensky, Matan"]
[Black "Sarkar, Justin"]
[Result "1/2-1/2"]
[ECO "A80"]
[WhiteElo "2097"]
[BlackElo "2373"]
[Annotator "TA"]
[PlyCount "72"]
[EventDate "2020.02.27"]
[EventType "tourn"]
[EventCountry "USA"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]

{[%evp 10,72,27,22,36,14,7,0,0,-8,0,-1,-5,-12,-24,-10,-12,-14,24,17,87,99,105,
110,206,187,199,194,175,33,29,-8,-10,-37,-35,-79,-41,-123,-131,-219,-219,-216,
-192,-191,-189,-290,-285,-218,-206,-259,-52,-54,-52,-54,-55,-58,-52,-55,-67,
-326,-211,-241,540,422,819]} 1. d4 f5 2. Nc3 Nf6 3. Bg5 d5 4. Bxf6 exf6 5. e3
Be6 6. Qf3 Qd7 {A80: Dutch Defence: Unusual White second moves.} 7. Bb5 Nc6 {
[%cal Bb8c6,Bc6a5,Ba5c4][%mdl 32]} 8. Nge2 a6 {The position is equal.} 9. Ba4
g5 10. g3 O-O-O 11. a3 b5 12. Bb3 {[#]} Na5 $146 ({Predecessor:} 12... h5 13.
h4 Qf7 14. O-O-O Na5 15. Ba2 Nc4 16. a4 c6 17. axb5 axb5 18. Bxc4 bxc4 {
1-0 (32) Jacobsen,M (2264)-Sjostrand,J (1900) Malmo 2016}) 13. Ba2 Nc4 14. a4
Qc6 (14... Nb6 $11 {keeps the balance.}) 15. axb5 $1 $16 axb5 16. Bxc4 $1 Qxc4
(16... bxc4 $16 {might work better.} 17. O-O Kd7) 17. Ra6 $1 $18 {[%cal Ra6e6]}
Rd6 18. b3 Qb4 19. Rxd6 (19. Ra2 $18) 19... Bxd6 $14 20. O-O (20. g4 $5) 20...
c6 21. Ra1 h5 22. Qg2 Kb7 23. Qf1 (23. Kf1 $1 $15) 23... h4 $17 24. Qb1 (24.
Na2 $17 {was necessary.} Qd2 25. Qe1 Qxe1+ 26. Rxe1) 24... hxg3 $19 25. hxg3
Bc7 $1 26. Qa2 {Threatening mate with Qa6+.} Bb6 27. Kf1 (27. Kg2 {was worth a
try.}) 27... f4 28. gxf4 Bh3+ 29. Ke1 gxf4 $2 (29... Bg4 $1 $19 30. Qb2 Ba5)
30. Kd2 $15 fxe3+ 31. fxe3 Bg4 {...Bxe2 is the strong threat.} 32. Qa6+ $1 Kc7
33. Rg1 $1 {[%cal Rg1g4]} f5 {Hoping for ...Rh2!} (33... Bxe2 34. Rg7+ Qe7 35.
Rxe7+ Kd6 36. Qb7 Bg4 37. Rg7 Rh2+ 38. Kc1 $1 {[%mdl 512]} Rh1+ 39. Kb2 $1 {
[%mdl 512]}) 34. Kd3 $2 {[%mdl 8192]} ({White should play} 34. Nf4 $15 Rh2+ 35.
Rg2 Rxg2+ 36. Nxg2) 34... Rh2 35. Qa8 {[#]} Qe7 $4 {[%mdl 8192]} (35... Qa5 $1
$19 {[%cal Ra5a8] avoids the disaster.} 36. Qe8 Kb7 37. Qe7+ Bc7) 36. Nf4 $18
Kd6 {[%mdl 32768] White used his chance. Accuracy: White = 59%, Black = 63%. .
An unexpected result.} ({But not} 36... Bf3 $2 {[#]} 37. Rg7 $3 {[%mdl 512]} (
37. Ne6+ Qxe6 38. Rg7+ Qd7 $16)) (36... Qd7 $142 37. Nfxd5+ (37. Rg3 b4 $11)
37... cxd5) 1/2-1/2

