[Event "TePe Sigeman Co 2021"]
[Site "Malmo"]
[Date "2021.09.29"]
[Round "5.4"]
[White "Keymer, Vincent"]
[Black "Nihal Sarin"]
[Result "1-0"]
[ECO "E16"]
[WhiteElo "2607"]
[BlackElo "2652"]
[Annotator "TA"]
[PlyCount "149"]
[EventDate "2021.09.23"]
[EventCountry "SWE"]
[SourceTitle "playchess.com"]
[Source "ChessBase"]
[SourceQuality "1"]
{[%evp 11,149,10,39,10,14,11,9,10,7,27,28,25,16,20,10,25,22,0,0,-4,-8,-14,-8,
-24,-25,-20,-18,-32,-27,-32,-33,-37,-4,-31,-35,-97,-82,-97,-106,-91,-59,-62,
-56,-61,-66,-100,0,-89,-79,-91,-84,-92,-81,-120,-112,-136,-135,-159,-123,-152,
-119,-157,0,-145,0,-146,-122,-150,-98,-122,-137,-168,-186,-164,-95,-103,-56,
-74,-75,-112,-84,-120,-81,-74,-25,-26,0,-53,0,0,0,-20,-14,-256,-243,-225,-233,
-188,0,0,506,596,630,630,630,630,582,643,643,635,611,603,591,588,574,560,559,
467,668,606,2024,1578,12472,10854,5239,8203,4906,3427,4694,5267,7404,6212,1898,
1399,29976,29977,29981,29972,29982,29982]} 1. d4 {Bulletin} Nf6 2. c4 e6 3. Nf3
b6 4. g3 Bb7 5. Bg2 Bb4+ 6. Bd2 c5 7. d5 {E16: Queen's Indian: 4 g3 Bb7 5 Bg2
Bb4+.} exd5 8. Nh4 {[%csl Rb2,Gc2,Rc3,Gd3,Rd4,Re3,Ge4,Rf2,Gf3,Gg2][%CAl Ge4d5,
Gc6b5,Gc6b7,Gd5c4,Gd4e5,Gf6g7,Gf6g5,Ge5f4,Gg3f4,Gd2f4]} O-O (8... Na6 9. Nc3
Nc7 10. Nf5 O-O 11. Ne3 d4 12. Bxb7 dxe3 13. Bxe3 d5 14. cxd5 Ncxd5 15. Bd2 Rb8
16. Ba6 Bxc3 17. bxc3 b5 18. c4 bxc4 19. Bxc4 Ne4 20. Bxd5 Qxd5 21. Bf4 Qxd1+
22. Rxd1 Rb2 23. O-O Nc3 24. Rd7 Nxe2+ 25. Kg2 Nxf4+ 26. gxf4 Rxa2 27. Rc1 Ra4
28. Rxc5 Rxf4 29. Rxa7 g6 30. Kg3 Rf6 31. f4 Rb8 32. Ra3 Rb1 33. Rf3 Kg7 34.
Rc2 Rf5 35. Rcf2 Rg1+ 36. Rg2 Re1 37. h4 Rh5 38. Rh2 Rg1+ 39. Kh3 Kf6 40. Rg3
Rf1 41. Kg4 Rf5 42. Rf3 h5+ 43. Kg3 Rg1+ 44. Rg2 Rxg2+ 45. Kxg2 Rd5 46. Kg3 Kf5
47. Re3 f6 48. Rc3 Ke4 49. Rc4+ Rd4 50. Rc6 Rd3+ 51. Kf2 Kf5 52. Kg2 Ra3 53.
Rb6 Rd3 54. Rc6 Re3 55. Ra6 Rb3 56. Rc6 Kg4 57. Rxf6 Rg3+ 58. Kf2 Kxh4 59. Ra6
Kh3 60. Rf6 h4 61. Ra6 Kh2 62. Rb6 h3 63. Ra6 Rg2+ 64. Kf3 Rg1 65. Kf2 Rg4 66.
Kf3 Rg2 67. Rb6 Kh1 68. Rb1+ Rg1 69. Rb6 h2 {0-1 (69) Praggnanandhaa,R (2608)
-Maghsoodloo,P (2698) Chess.com INT 2021}) (8... Qc7 9. O-O (9. Bxb4 cxb4 10.
cxd5 Qe5 11. Nd2 Bxd5 12. O-O O-O 13. e4 Be6 14. f4 Qxb2 15. e5 Qd4+ 16. Kh1
Nd5 17. Nb3 Qc4 18. Qe1 g5 19. Nd2 Qc3 20. Nhf3 g4 21. Ng5 Ne3 22. Bxa8 Nxf1
23. Qb1 Rc8 24. Qxh7+ Kf8 25. Rxf1 Qxd2 26. Nxe6+ Ke7 27. Qh4+ Kxe6 28. Qf6# {
1-0 (28) Ernst,S (2598)-Wohl,A (2387) Dieren 2009}) (9. Nc3 Bxc3 10. bxc3 Qe5
11. O-O O-O 12. Bf4 Qe6 13. Qc2 Nc6 14. Nf5 Na5 15. cxd5 Nxd5 16. Bd6 Rfe8 17.
e4 Nf6 18. f3 g6 19. Nh6+ Kg7 20. Bf4 d5 21. Bg5 Ng8 22. Nxg8 Kxg8 23. Rae1 f6
24. Bh6 Rad8 25. Qf2 Nc4 26. f4 dxe4 27. f5 Qxf5 28. Qxf5 gxf5 29. Rxf5 Rd6 30.
Ref1 Kf7 31. Bf4 Rd5 32. Rxd5 Bxd5 33. Rd1 Bc6 34. Bf1 Ne5 35. Rd6 Ba4 36. Be2
Ng6 37. Bc4+ Kg7 38. Be3 Re7 39. Bd5 Be8 40. h4 Bf7 41. a4 Bxd5 42. Rxd5 Ne5 {
0-1 (42) Veingold,A (2430)-Vitolinsh,A (2470) Riga 1982}) 9... Bxd2 (9... O-O
10. Bf4 d6 11. cxd5 Nbd7 12. Nc3 a6 13. a3 Bxc3 14. bxc3 c4 15. Nf5 Ne5 16. Rb1
Rfe8 17. Qd2 b5 18. a4 Qd7 19. Nxg7 Kxg7 20. Bh6+ Kh8 21. Qg5 Nh5 22. Qxh5 f6
23. axb5 axb5 24. Bh3 Qf7 25. Qxf7 Nxf7 26. Bf4 Bxd5 27. Rxb5 Be6 28. Bxe6 Rxe6
29. e3 Ne5 30. Rfb1 Re7 31. Bxe5 fxe5 32. Rd5 Rd8 33. Rb6 Red7 34. f4 exf4 35.
gxf4 Kg7 36. Kf2 Kf6 37. Rh5 Kg6 38. Rg5+ Kf6 39. Kf3 Rg7 40. Rxg7 Kxg7 41. Ke4
Re8+ 42. Kd4 Re6 43. e4 Kf7 44. f5 Rh6 45. Kd5 Ke7 46. Rb7+ Kd8 47. Rg7 Ke8 48.
h3 Kf8 49. Rc7 Ke8 50. Rxc4 Kd7 51. Ra4 Kd8 52. Ra7 Ke8 53. c4 Kd8 54. c5 dxc5
55. Kxc5 Rxh3 56. e5 Rd3 57. f6 Ke8 58. Rxh7 Kf8 59. e6 Kg8 60. Rg7+ Kf8 61.
e7+ Ke8 62. Rg8+ Kd7 63. e8=Q+ Kc7 64. Qc8# {1-0 (64) Kuzubov,Y (2642)-Benitez
Lozano,J (2367) Chess.com INT 2021}) 10. Qxd2 Qe5 (10... dxc4 11. Bxb7 Qxb7 12.
Nf5 O-O 13. Qg5 g6 14. Qxf6 gxf5 15. Nc3 d5 16. e4 fxe4 17. Qg5+ Kh8 18. Qf6+
Kg8 19. Qg5+ Kh8 20. Qf6+ Kg8 21. Qg5+ {1/2-1/2 (21) Panesso Rivera,H (2355)
-Benitez Lozano,J (2350) Medellin 2020}) 11. Nc3 Ne4 12. Qc2 Nxc3 13. bxc3 O-O
14. Rad1 Re8 15. Nf5 Na6 16. cxd5 g6 17. Ne3 f5 18. Nc4 Qf6 19. a4 d6 20. e4
fxe4 21. Bxe4 Nb8 22. Rfe1 Nd7 23. f4 Re7 24. Bg2 Nf8 25. Nd2 Rd8 26. Ne4 Qg7
27. Qd2 Bc8 28. h3 Bf5 29. Nf2 Rde8 30. g4 Rxe1+ 31. Rxe1 Rxe1+ 32. Qxe1 Bd7
33. Ne4 Qe7 34. Qa1 b5 35. a5 h5 36. Qd1 hxg4 37. hxg4 Nh7 38. g5 Bf5 39. Qe1
Nf8 40. Kf2 Bxe4 41. Bxe4 Qc7 42. Kg3 a6 43. c4 b4 44. Bc2 Qg7 45. Kg4 Qd4 46.
Qe2 Qg1+ 47. Kh4 Qh1+ 48. Kg3 Qg1+ 49. Kf3 Qh1+ 50. Kg3 Qg1+ {1/2-1/2 (50)
Gareyev,T (2658)-Onischuk,A (2666) Rockville 2012}) (8... Bxd2+ 9. Qxd2 O-O (
9... Ne4 10. Qc2 Qf6 11. O-O g5 12. cxd5 Nd6 13. Nf3 Na6 14. e4 h6 15. Nc3
O-O-O 16. e5 Qf5 17. Qe2 Ne8 18. Nd2 Nb4 19. a3 Ba6 20. Nc4 Qd3 21. axb4 Qxe2
22. Nxe2 Bxc4 23. Rxa7 d6 24. Bh3+ Kb8 25. Rfa1 Bxd5 26. Nc3 Bb7 27. Bg2 Bxg2
28. Kxg2 Nc7 29. exd6 Rxd6 30. bxc5 bxc5 31. Nb5 Nxb5 32. Ra8+ Kb7 33. Rxh8 Rd2
34. Rxh6 Rxb2 35. Re1 Nc7 36. Rf6 c4 37. Re7 Rb6 38. Rxb6+ Kxb6 39. h4 gxh4 40.
gxh4 Ne6 41. Kf1 Nd4 42. h5 {1-0 (42) Werbeck,T (2265)-Waechtler,F (2235)
Germany 1998}) 10. cxd5 d6 11. O-O g6 12. Nc3 Nbd7 13. a4 a6 14. e4 Re8 15. f4
c4 16. Rae1 Qc7 17. h3 b5 18. axb5 axb5 19. Nxb5 Qb6+ 20. Nd4 Nc5 21. e5 Nxd5
22. Kh2 Nd3 23. Ndf3 Nxe1 24. Rxe1 Qb4 25. Qc1 Ra2 26. f5 dxe5 27. fxg6 fxg6
28. Qg5 Qe7 29. Qc1 Qc7 30. Qg5 Rxb2 31. Nxg6 Qg7 32. Rxe5 Nf6 33. Rxe8+ Nxe8
34. Qd8 Qxg6 35. Nh4 Rxg2+ 36. Nxg2 Qc6 37. Qg5+ Ng7 38. Qd8+ Kf7 39. Qd2 Qxg2+
40. Qxg2 Bxg2 41. Kxg2 c3 {0-1 (41) Barp,A (2375)-Martinez Alcantara,J (2620)
Chess.com INT 2020}) 9. O-O {The position is equal.} (9. Bxb4 cxb4 10. O-O (10.
cxd5 d6 11. O-O Qe7 12. e4 g6 13. Qd4 Nbd7 14. Qxb4 Nc5 15. Nc3 Rfe8 16. Qd4
Ba6 17. Rfd1 Rac8 18. f3 Rc7 19. Rd2 Nh5 20. Re1 Qf6 21. Qxf6 Nxf6 22. Bf1 Bxf1
23. Kxf1 a6 24. Ng2 b5 25. h4 Nfd7 26. Ne3 Ne5 27. Kg2 b4 28. Ne2 f5 29. Rd4
fxe4 30. fxe4 Ned3 31. Rd1 Nxb2 {0-1 (31) Vaibhav,S (2551)-Lalith,B (2563)
Pune 2015}) 10... Na6 11. a3 (11. cxd5 Re8 12. a3 Re5 13. axb4 Qe8 14. Nc3 Nxb4
15. e4 g6 16. f4 {1-0 (16) Real de Azua,E (2432)-Garcia Palermo,C (2450) Villa
Martelli 2010}) 11... Qe7 12. cxd5 Qe5 13. axb4 Nxb4 14. e4 a5 15. Nc3 Ba6 16.
f4 Qc7 17. Rf3 d6 18. Qd2 Rae8 19. Re1 Nd7 20. Bf1 Bxf1 21. Kxf1 g6 22. Kg2 Qc4
23. Re2 Nc5 24. e5 f5 25. Rfe3 Nb3 26. Qd1 Nd4 27. Rd2 Nb3 28. Rf2 Nc5 29. Nf3
Re7 30. Qd4 Qxd4 31. Nxd4 dxe5 32. Rxe5 Rd7 33. Ne6 Rc8 34. Nxc5 Rxc5 35. Rd2
Kf7 36. h3 Rd6 37. g4 fxg4 38. hxg4 Rc4 39. Kf3 Nc6 40. Re4 {1-0 (40) Basso,P
(2539)-Castellanos Rodriguez,R (2511) Forni di Sopra 2019}) 9... Bxd2 10. Qxd2
Ne4 11. Qc2 Re8 12. Nc3 Nxc3 13. bxc3 {[#]} d6 $146 ({Predecessor:} 13... Nc6
14. cxd5 Ne5 15. Rfe1 d6 16. f4 Ng6 17. Nxg6 hxg6 18. e4 g5 19. e5 gxf4 20.
gxf4 dxe5 21. fxe5 {0-1 (54) Nikolic,P (2570)-Kortschnoj,V (2635) Wijk aan Zee
1984 MCL [Bulletin]}) 14. Rad1 Nd7 $36 {[%mdl 2048] Black fights for an
advantage.} 15. Nf5 Nf6 16. cxd5 Bc8 17. Rfe1 Bxf5 18. Qxf5 b5 {[%CAl Bb6b5,
Bb5b4][%mdl 32]} 19. e4 Nd7 20. Rb1 Rb8 21. Bf1 b4 22. c4 g6 23. Qh3 (23. Qg4
$15) 23... Nb6 $1 $17 24. Rb3 Qf6 25. Qg4 Re7 26. Qd1 Rbe8 27. Rbe3 a5 {
[%CAl Ba7a5,Ba5a4,Ba4a3][%mdl 32]} 28. Kg2 Qb2 ({Black should play} 28... a4
$17) 29. R1e2 (29. e5 $1 $11 {keeps the balance.} Rxe5 30. R1e2) 29... Qd4 30.
Rd2 Qg7 31. Bd3 a4 32. Qc2 a3 33. Rde2 Qd4 34. h4 Nd7 {[%CAl Bb6d7,Bd7e5,Be5g4]
[%mdl 32]} 35. Rd2 Qg7 36. Rde2 Qd4 37. Rd2 $1 Qg7 38. Rde2 $1 Ne5 39. Re1 h5 (
{Black should try} 39... Nxd3 40. Qxd3 Qd4) 40. R3e2 Qf6 41. Re3 Ng4 {...b3 is
the strong threat.} 42. R3e2 Kg7 (42... Qd4 $1 $19 43. f3 Ne5) 43. Rd2 Rb8 44.
f3 $1 {[%CAl Rf3g4]} Nh6 45. Rde2 Rbe8 46. Qb3 g5 47. hxg5 Qxg5 48. f4 $1 {
[%CAl Rf4g5]} Qf6 (48... Qg4 $5 {[%CAl Rh6f5]} 49. e5 dxe5 $11) 49. Rh1 {[#]} (
49. Bb1 $11) 49... Qd4 (49... Nf5 $1 $15 50. Ree1 (50. Rxh5 Nd4 $17 {[%mdl 64]
Double Attack}) (50. Qd1 h4) 50... h4 $1) 50. Rxh5 $11 {aiming for Bb1.} f5 $1
51. Rg5+ Kf8 {[%CAl Rf5e4]} 52. Bc2 $2 (52. Qd1 $11 {and White stays safe.}
fxe4 53. Bc2) 52... Rxe4 $1 $19 53. Bxe4 Rxe4 54. Qf3 Rxe2+ $2 (54... Qxc4 $19
55. Rd2 (55. Rxf5+ $2 Nxf5 56. Rxe4 Qxa2+ 57. Re2 Qb1 $19) 55... Rd4 56. Rxd4
Qxd4) 55. Qxe2 $11 Qe4+ $2 {[%mdl 8192] White stays focused until the end.} (
55... b3 $11 56. Qh5 (56. axb3 $2 Qb2 $19) 56... Qe4+ 57. Kg1 (57. Kh2 $2 Ng4+
58. Rxg4 fxg4 $19) 57... Qb1+ 58. Kg2 Qe4+ {[%mdl 64] Double Attack} 59. Kg1 (
59. Kh2 $2 Ng4+ 60. Rxg4 fxg4 $19) 59... Qb1+ 60. Kg2 Qe4+ {[%mdl 64] Double
Attack}) 56. Qxe4 $18 fxe4 {[%mdl 4096] Endgame KR-KN} 57. Rg6 {[%mdl 64]
Double Attack} Nf7 {[#] Threatens to win with ...b3!} 58. Re6 $1 b3 59. Rxe4 b2
60. Re1 Nh6 61. g4 Nxg4 {White must now prevent ...Ne3+!} 62. Kf3 Nh6 63. Ke4
Kf7 {[#]} 64. Kd3 $1 {[%CAl Rd3c2]} Nf5 (64... Ng4 $142 65. Kc2 Kf6 66. Re6+
Kf5) 65. Kc2 Kf6 {intending ...Nd4+.} 66. Kb1 Ng3 67. Re3 Nf1 68. Rxa3 Nd2+ 69.
Kxb2 Nxc4+ 70. Kb3 Ne3 71. Ra7 Nxd5 72. a4 {[%CAl Ba2a4,Ba4a5,Ba5a6][%mdl 32]}
Nxf4 73. a5 {White mates.} Ke5 74. a6 Kd4 75. Rb7 {[%emt 0:00:31] Weighted
Error Value: White=0.19/Black=0.} 1-0
