"What is a weak pawn? A pawn that is exposed to attack and also difficult to defend is a weak pawn. There are several varieties: isolated, doubled, too advanced, retarded."
🔸Samuel Reshevsky (1976) "The Art of Positional Play"
@UnityChess
🔸Samuel Reshevsky (1976) "The Art of Positional Play"
@UnityChess
The strong master and celebrated theoretician from Ukraine, Isaak Lipnitsky - pictured in play v. Efim Geller in the 5th round of the 20th USSR Championship, Moscow, 4th December 1952.
@UnityChess
@UnityChess
The 2018 Chess.com Speed Chess Championship will feature 16 of the world's best chess players in an innovative eSports bracket tournament and a guaranteed prize pool of $55,000.
https://bit.ly/2D54ql
https://bit.ly/2D54ql
Grischuk vs Duda #speedchess match starts with 2 victories of the Russian GM. #chessnews
🔴 Sept. 18, 11 a.m. PDT: Grischuk vs Duda
#live_chesscom
https://bit.ly/2xxPoiu
🔴 Sept. 18, 11 a.m. PDT: Grischuk vs Duda
#live_chesscom
https://bit.ly/2xxPoiu
15... Bd7?!
The English International Master plays slowly. He could have got enough counterplay with the following continuation:
15... Ba6! 16. Qxa6 Nxc2+ 17. Kd2 Nxa1 18. Bxa1 Rg3 19. Qb5+ Kf8 20. Qxc5 bxc5 =
16. O-O-O Ndf5 17. Rh3 Qf2 18. Ne2 a6 19. Bd4 Nxd4 20. Qxd4 Qxd4 21. Nxd4 Nc6 22. Nf3 +-
The English International Master plays slowly. He could have got enough counterplay with the following continuation:
15... Ba6! 16. Qxa6 Nxc2+ 17. Kd2 Nxa1 18. Bxa1 Rg3 19. Qb5+ Kf8 20. Qxc5 bxc5 =
16. O-O-O Ndf5 17. Rh3 Qf2 18. Ne2 a6 19. Bd4 Nxd4 20. Qxd4 Qxd4 21. Nxd4 Nc6 22. Nf3 +-
39... f5+?
The Slovakian GM made a mistake in a critical position. Actually, he has missed a forced win:
39... Qb5!!
A) 40. Qxd4 40... f5+ 41.Kf4 fxe4 -+
B) 40. Re7 Qh5+ 41. Kf4 Rf2+ 42. Ke4 Qf5+ 43.Kxd4 Rd2+ -+
C) 40. Qd8+ Kg7 41. Re7+ Kg6 42. Qxh8 Qf5+ 43. Kh4 Rh2#
40. Kg5 Rh5+
40... fxe4 41. Qd8+ Kg7 42. Qf6+ Kg8 43. Qd8+ with perpetual check.
41. Kxh5 Qf7+ 1/2-1/2
If 42. Kg5, then fxe4 43. Qd8+ Qf8 44. Qd5+ =.
The Slovakian GM made a mistake in a critical position. Actually, he has missed a forced win:
39... Qb5!!
A) 40. Qxd4 40... f5+ 41.Kf4 fxe4 -+
B) 40. Re7 Qh5+ 41. Kf4 Rf2+ 42. Ke4 Qf5+ 43.Kxd4 Rd2+ -+
C) 40. Qd8+ Kg7 41. Re7+ Kg6 42. Qxh8 Qf5+ 43. Kh4 Rh2#
40. Kg5 Rh5+
40... fxe4 41. Qd8+ Kg7 42. Qf6+ Kg8 43. Qd8+ with perpetual check.
41. Kxh5 Qf7+ 1/2-1/2
If 42. Kg5, then fxe4 43. Qd8+ Qf8 44. Qd5+ =.
27... Kf8?
27... Rae8!
A prophylactic move, intending ...Kf8.
28. h5 Rh8 29. Kg1 Bxe4 30. hxg6 fxg6 31. Nh3 +/-
White has a better position, but it is still a long fight.
28.Ne6+ Ke8 29. Nxc7+ Kd7 30. Nxa8 Bxa8 31. Rd1 Bxe4 32. h5 +-
27... Rae8!
A prophylactic move, intending ...Kf8.
28. h5 Rh8 29. Kg1 Bxe4 30. hxg6 fxg6 31. Nh3 +/-
White has a better position, but it is still a long fight.
28.Ne6+ Ke8 29. Nxc7+ Kd7 30. Nxa8 Bxa8 31. Rd1 Bxe4 32. h5 +-
40... Nc5??
A fatal blunder.
Black now has an overloaded rook, which must defend the knight and the vital h6-square as well.
40... Rh3 41. Bxb3 Rxe3 42. Bxc4 Bd6
Black is a pawn up, but due to the opposite-colored bishops, a draw is the most likely result.
41. Bd1! Nd3
41... Rh4 42. Bxc5+ +-
41... Rd5 42. Bh6+ +-
42. Bxh5 Nxf2+ 43. Kg2 1-0
A fatal blunder.
Black now has an overloaded rook, which must defend the knight and the vital h6-square as well.
40... Rh3 41. Bxb3 Rxe3 42. Bxc4 Bd6
Black is a pawn up, but due to the opposite-colored bishops, a draw is the most likely result.
41. Bd1! Nd3
41... Rh4 42. Bxc5+ +-
41... Rd5 42. Bh6+ +-
42. Bxh5 Nxf2+ 43. Kg2 1-0
22. Qa2?!
22. Nb1!
A powerful regrouping to transfer the knight to c3-square. 22...Bf8 23. Kh2 Bc5 24. Rf3 Nc8 25. Nc3 Nd6 26. h4! With the idea of activating the light-squared bishop on the strong h3-c8 diagonal.
22. h4 Nc5 23. Bc1 Ncxa4 24. h5 gxh5 25. Nf3+/= Intending Nh4-f5.
22. Bc1 Nc5 23. h4 Rab8 24. h5 gxh5 25. Kh2+/=
22... Bh6 23. Kh2 Bxd2 24. d6 Qc6 25. Rxd2 Nxa4 26. Ba1 Nab6 27. Bb2 Kg7 28. Rf3 Re6 29. Ba3 Nc5 30. Rd5 Nxe4 31. Rd1 Rd832. Re1 Nxd6 33. Rxf6 Qe8 34. Rxe6 Qxe6 35. Bb2 Nf7 36. Qxa5 Re8 37. Rf1 Re7 38. Ba3 Rd7 39. h4 Rd8 40. Bc5 Nd7 41. Bh3 Qd5 42. Bb4 Qxa5 43. Bxa5 Ra8 44.Bb4 Nf6 45. Be6 Nh6 46. Kh3 Re8 47. Bxc4 Nhg4 48. Bb5 Ra8 49. Re1 h5 50. Re2 Ra1 51. Bc5 Rh1+ 52. Kg2 Rh2+ 53. Kf1 Rxe2 54. Bxe2 Ne4 55. Bxg4 hxg4 56. Bf2 Kf6 57. Ke2 Ke6 58. c4 Kd6 59. Be1 Kc5 60. Kd3 Nf6 61. Bd2 Nh5 62. Be3+ Kd6 63. Bf2 Nf6 64. Be1 Kc5 65. Bf2+ Kd6 66. Ke2 Ne4 67. Ke3 Nf6 68. Kd3 Nh5 69. Be1 Nf6 70. Bb4+ Ke6 71. Ba5 Nh5 72. Be1 Kd6 73. Kc3 Kc5 74. Bf2+ Kc6 75. Kd3 Kd6 76. Ke3 Nf6 77. Be1 Nh5 78. Bb4+ Ke6 79. Ke4 1/2-1/2
22. Nb1!
A powerful regrouping to transfer the knight to c3-square. 22...Bf8 23. Kh2 Bc5 24. Rf3 Nc8 25. Nc3 Nd6 26. h4! With the idea of activating the light-squared bishop on the strong h3-c8 diagonal.
22. h4 Nc5 23. Bc1 Ncxa4 24. h5 gxh5 25. Nf3+/= Intending Nh4-f5.
22. Bc1 Nc5 23. h4 Rab8 24. h5 gxh5 25. Kh2+/=
22... Bh6 23. Kh2 Bxd2 24. d6 Qc6 25. Rxd2 Nxa4 26. Ba1 Nab6 27. Bb2 Kg7 28. Rf3 Re6 29. Ba3 Nc5 30. Rd5 Nxe4 31. Rd1 Rd832. Re1 Nxd6 33. Rxf6 Qe8 34. Rxe6 Qxe6 35. Bb2 Nf7 36. Qxa5 Re8 37. Rf1 Re7 38. Ba3 Rd7 39. h4 Rd8 40. Bc5 Nd7 41. Bh3 Qd5 42. Bb4 Qxa5 43. Bxa5 Ra8 44.Bb4 Nf6 45. Be6 Nh6 46. Kh3 Re8 47. Bxc4 Nhg4 48. Bb5 Ra8 49. Re1 h5 50. Re2 Ra1 51. Bc5 Rh1+ 52. Kg2 Rh2+ 53. Kf1 Rxe2 54. Bxe2 Ne4 55. Bxg4 hxg4 56. Bf2 Kf6 57. Ke2 Ke6 58. c4 Kd6 59. Be1 Kc5 60. Kd3 Nf6 61. Bd2 Nh5 62. Be3+ Kd6 63. Bf2 Nf6 64. Be1 Kc5 65. Bf2+ Kd6 66. Ke2 Ne4 67. Ke3 Nf6 68. Kd3 Nh5 69. Be1 Nf6 70. Bb4+ Ke6 71. Ba5 Nh5 72. Be1 Kd6 73. Kc3 Kc5 74. Bf2+ Kc6 75. Kd3 Kd6 76. Ke3 Nf6 77. Be1 Nh5 78. Bb4+ Ke6 79. Ke4 1/2-1/2