Liviu-Dieter Nisipeanu vs Vasyl Ivanchuk (2009)

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Liviu-Dieter Nisipeanu vs Vasyl Ivanchuk
Bazna Tournament (2009), Bazna ROM, rd 1, Jun-14
Spanish Game: Closed Variations. Zaitsev System (C92) · 0-1

ANALYSIS [x]

FEN COPIED

Annotations by Stockfish (Computer). [35434 more games annotated by Stockfish]

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Jun-14-09		hedgeh0g: Black's next move will be Nf6, winning the exchange with a great position. If White moves the rook, Black will capture the bishop, threatening Rb1. Great game by Ivanchuk - let's hope his rainy days thus far are over!

Jun-14-09		TheChessGuy: <hedgeh0g> Yep, that checks. If White doesn't sacrifice the exchange, he'll lose a piece.

Jun-14-09		Kinghunt: This looks exactly even after move 28. Rybka scores it as 0.00 at 18 ply. But 29. Bb1 was weak, 32. Kg2 was horrible, and 34. Kg1 just sealed it.

Jun-15-09		virginmind: by move 29 nisi had only 5 minutes remaining on his clock, and at move 32 only one... chucky's dark squared bishop remained locked on f8 for most of the game, till the end.

Jun-15-09		Boomie: GM Dorian Rogozenco says at http://www.chessbase.com/news/2009/..., "A better practical decision with little time on the clock would have been 27.Qxf3 Qxf3 28.gxf3 d5 29.Ba6 Rc3 30.Rb4 with an equal endgame." click for larger view 27. Qxf3 enters a Morphyland of minor piece play. All the pieces have good scope in an open position. This is exactly the kind of position Morphy might have solved over the board. A quick probe by Rybka 2.3.2a agrees with GM Rogozenco's assessment. (I think in open positions, depth of search is more important than breadth. This version of Rybka gets to greater depth faster than version 3) However I wonder if this is a good position "with little time on the clock". The following sample variations demonstrate many middle game themes and tactics. White seems to maintain a slight advantage. I wonder what the Evil Chucky had in mind. It would have been great to see them play this one out. 27. Qxf3 Qxf3 28. gxf3 d5 29. Ba6 Rc3 30. Rb4 (GM Rogozenco - with an equal endgame) 30...Kh7 (30...d4 31. Bd2 31. Rb8 Ng6 32. Bd2 Rxf3 33. Be2 Rf6 34. Re8 Nf4 35. Bf1 Ng6 36. Be2 Nf4 37. Bf1 Ng6 =) 31...Rxf3 32. Rb8 g5 (32...Rf6 33. Bd3 g5 34. Bb4 Kg7 35. Rb7 Kf7 36. Bc4+ Ke8 37. Bb5+ Kf7 38. Bc4+ =) 33. h4 Kg7 34. Be2 Rf7 35. Bc4 Nc6 36. Rb6 Rf6 37. Rb7+ Kh8 (37...Kg6 38. Bd3+ Kh5 39. hxg5 hxg5 40. Rh7+ Rh6 41. Rf7 Bb4 42. Rf3 Kh4 43. Bc1 (43. Kg2 g4 44. Bxh6 gxf3+ 45. Kxf3 Na5 46. Bc2 0.32/24) 43...g4 44. Rf7 Rh8 45. Rg7 Bf8 46. Rg6 e4 (a pawn sacrifice to open e5 for the knight) click for larger view 47. Bxe4 Ne5 48. Re6 Nf3+ (48...Nd7 49. Bf4 Nc5 50. Re5 Nxe4 51. Kg2 g3 52. Rxe4 Kh5 53. fxg3 d3 54. Re5+ Kg6 55. Rd5 Bb4 56. Rxd3 ) 49. Kg2 Ne1+ 50. Kf1 Bb4 51. Bf4 Nf3 52. Rb6 Bc3 53. Ke2 Kh3 54. Bxf3 (54. Rb8 Rxb8 55. Bxb8 Bb4 56. Bc7 Nd2 57. Bd5 Nf3 58. Be6 Bc5 59. Bg3 d3+ 60. Kxd3 Nd4 61. Bd5 Nf5 62. Be5 Bxf2 63. b4 Ne7 64. Bb7 g3 65. Bd6 Ng6 66. Bc8+ Kh4 67. Ke2 Kg5 68. b5 Kf6 69. Bc7 Ne7 70. Bb7 Ke6 71. b6 Kd7 72. Be4 Ng8 73. Bf3 Bd4 74. Kd3 Bc5 75. Bg4+ Kc6 76. Bxg3 Bxb6 =) 54...Re8+ 55. Be3 gxf3+ 56. Kxf3 Kh2 57. Bf4+ Kg1 0.38/23) 54...Re8+ (zwischenzug) 55. Be3 (interference) (Two extraordinary moves) click for larger view 55. gxf3+ Kxf3 (threatening Rh6#) 56. Kh2 Bf4+ Kg1 0.38/23) 38. hxg5 hxg5 39. Bd3 Nd8 40. Bxg5 Rg6 41. Bxg6 Nxb7 42. Bf6+ Bg7 43. Be7 Kg8 44. Be4 Kf7 45. Bb4 Nd8 46. Ba5 Ke7 47. b4 Bf6 48. b5 Kd7 49. b6 (49. Kf1 Kc8 50. Ke2 Nb7 51. Bb6 Kb8 52. Bd5 Bd8 53. Bxd8 Nxd8 54. b6 Nb7 55. f4 exf4 56. Kd3 Nc5+ 57. Kxd4 =) 49...Kc8 50. Bb4 Nb7 0.33/27) click for larger view 31. Rb6 Nf5 32. Bb7 Nxe3 33. fxe3 Bc5 34. Rb5 Bxe3+ 35. Kf1 d4 36. Be4+ g6 37. Ke2 Kg7 38. b4 Bf4 39. Rb6 Re3+ 40. Kd1 Rb3 41. Ke2 (41. Rxg6+ Kf8 42. Rg8+ Ke7 43. Rg7+ Kd6 44. Rg6+ Kc7 45. Rg7+ Kb6 46. Rb7+ Ka6 47. Kc2 Re3 48. b5+ Ka5 49. Kd1 Rb3 50. Ke2 -0.45/22) 41...g5 42. b5 Kf8 43. Rb7 Ke8 44. b6 Kd8 45. Rb8+ Ke7 46. Rb7+ Kf6 47. Rf7+ Kxf7 48. Bd5+ Ke7 49. Bxb3 Kd6 50. b7 Kc7 51. Bd5 0.24/33) click for larger view

Jun-16-09		Aniara: The black counterattack is potentially very dangerous in this variation. I guess this is the sort of game Karpov was hoping for when he tried and tried to beat Kasparov with black in the Zaitsev!

Jun-20-09		Ulhumbrus: After 17 a4 if White has the initiative on both flanks, Black is lost. This may be true if Black cannot play ...f5. So can Black play 17...f5? The move gives White's N on d2 the e4 square after 18 exf5! On 18 exf5 Nxf5 19 Qd3 prepares to attack the square h7.

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