Author: Peter Berger
Date: 02:25:26 02/03/04
Go up one level in this thread
On February 03, 2004 at 02:55:08, Richard Pijl wrote: Thanks for your interesting tournament report. A few comments on the Bringer-Baron game squeezed inside: > >In the next game against Bringer, the Baron struggled after the opening phase to >equalize. When Bringer recaptured a knight with 31.fxe3? Baron's king attack >chances rised. I think white's 31. fxe3?! indeed blows the opening edge and I really don't understand this move either. An equal position is reached then. Bringer played another dubious move later with 36. Nxa6?! that allowed Baron to seize the initiative for real: Der Bringer - thebaron(C) [D]4r2k/2p4p/pn1p4/5pq1/1N1Pr3/1P2PQ1P/4R1P1/4R1K1 w - - 0 1 >[D] 4r2k/7p/8/2Np2q1/3r1p2/1P2nQ1P/4R1P1/2R4K b - - 1 41 > >This looks like the critical position. The Baron has Der Bringer cornered, but >it is unsuccessful in finding the correct continuation. It looks like Rc8 offers >some chances, but I'm not sure about that. Anyone got an idea? } It is not the only time in this tournament where Bringer reached a position with very little air to breathe, but being quite relaxed itself, scoring in an unrealistic way. Though black has a clear edge here, the more reasonable looking evaluation of other chessprograms reveals no clear idea how to really make progress in this case. White's position might just hold, after tough defense. > >Qe7 42. Qf2 Rc8 43. Ree1 Kg8 44. >Qb2 Qg7 45. b4 Re8 46. b5 Qg3 47. Nd7 Rb4 48. Qd2 Rd4 49. Qe2 Qg7 50. Nc5 >Qg6 51. Qf3 Kh8 52. Rg1 Qh6 53. Rb1 Qb6? > >[D] 4r2k/7p/1q6/1PNp4/3r1p2/4nQ1P/6P1/1R4RK w - - 15 54 > >{ This is a vital mistake. Besides that, the purpose of Qb6 escapes me. The >correct moves for white are not difficult to find, but it is not immediately >clear that black loses here. } Qb6? is a bad move indeed, but it blocks the free pawn and attacks the knight?! I am not sure about this position anyway. Though programs still see an advantage for black white has definitely made some progress. Bringer (as many other programs I assume) realized that it was getting very real winning chances after 53. ..Qb6? with 54. Qh5 and its score jumped up to +1. I can only subscribe to your report on the end of the game. It was clear from the engine output, that for both engines the pretty knight and rook sac where just some ordinary follow-up, while human spectators watched stunned. Though not too difficult for engines, I thought the end of the game was really pretty and might have earned some "!" when played by a human master. Here is the Bringer PGN on the game, giving its own opinion: [Event "ICS Match (Partie in 45 Minuten + 10 Sekunde(n) pro Zug)"] [Site "unbekannt"] [Date "2004.02.01"] [Round "1"] [White "Der Bringer"] [Black "thebaron(C)"] [Result "1-0"] [WhiteElo "2283"] [BlackElo "2453"] 1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 O-O 8. h3 d6 9. c3 Nd7 10. d4 Bf6 11. a4 Na5 12. Bc2 { 0.00 0:00:00.0 } Bb7 13. Na3 { 0.00 0:00:00.0 } bxa4 14. Bxa4 { 0.16/15 0:01:45.7 } exd4 15. cxd4 { 0.27/14 0:01:21.4 (PB: 0:01:21.3 ) } Nc6 16. Bf4 { 0.27/14 0:01:16.0 (PB: 0:01:15.9 ) } Ne7 17. e5 { 0.67/14 0:01:50.5 } Ng6 18. exf6 { 0.65/14 0:02:10.4 (PB: 0:00:19.1 ) } Nxf4 19. fxg7 { 0.52/13 0:01:13.4 (PB: 0:01:13.3 ) } Kxg7 20. Nc4 { 0.46/13 0:02:11.7 (PB: 0:00:44.0 ) } Kh8 21. Na5 { 0.30/12 0:01:02.7 (PB: 0:01:02.6 ) } Bd5 22. Bc6 { 0.35/13 0:01:17.5 (PB: 0:01:17.4 ) } Rg8 23. Bxd5 { 0.35/13 0:01:41.3 (PB: 0:00:35.2 ) } Nxd5 24. Nc6 { 0.33/12 0:00:50.0 (PB: 0:00:49.9 ) } Qf6 25. Nh2 { 0.34/12 0:00:56.0 (PB: 0:00:55.9 ) } Nb8 26. Na5 { 0.29/13 0:01:00.2 (PB: 0:01:00.1 ) } Nd7 27. Ng4 { 0.40/13 0:01:18.3 } Qg5 28. Qf3 { 0.39/13 0:01:00.2 } N7b6 29. Nc6 { 0.34/13 0:02:54.5 (PB: 0:00:36.6 ) } f5 30. Ne3 { 0.36/14 0:02:06.3 } Nxe3 31. fxe3 { 0.28/14 0:01:37.8 (PB: 0:00:18.2 ) } Nc4 32. Re2 { 0.27/14 0:01:35.8 (PB: 0:01:35.6 ) } Rae8 33. Rae1 { 0.16/14 0:01:04.2 (PB: 0:00:31.1 ) } Re4 34. b3 { 0.37/14 0:00:47.2 } Nb6 35. Nb4 { 0.19/14 0:01:22.3 (PB: 0:00:20.8 ) } Rge8 36. Nxa6 { 0.11/13 0:01:26.0 } Nd5 37. Rc1 { 0.03/12 0:00:38.6 (PB: 0:00:38.5 ) } Nxe3 38. Rxc7 { 0.00/13 0:00:56.4 } Rxd4 39. Rc1 { 0.01/12 0:00:44.8 } d5 40. Nc5 { 0.00/12 0:00:55.3 } f4 41. Kh1 { 0.00/12 0:01:01.2 } Qe7 42. Qf2 { 0.04/12 0:00:38.8 } Rc8 43. Ree1 { 0.16/13 0:02:21.4 } Kg8 44. Qb2 { 0.20/13 0:01:09.7 } Qg7 45. b4 { 0.12/12 0:00:52.5 (PB: 0:00:52.4 ) } Re8 46. b5 { 0.10/12 0:00:34.2 } Qg3 47. Nd7 { 0.01/11 0:01:23.2 (PB: 0:01:23.0 ) } Rb4 48. Qd2 { 0.02/11 0:02:24.4 } Rd4 49. Qe2 { 0.08/12 0:00:58.9 } Qg7 50. Nc5 { 0.04/13 0:01:41.5 (PB: 0:01:41.4 ) } Qg6 51. Qf3 { 0.04/12 0:00:44.6 (PB: 0:00:44.5 ) } Kh8 52. Rg1 { 0.02/12 0:00:30.7 (PB: 0:00:24.2 ) } Qh6 53. Rb1 { 0.27/12 0:00:53.5 } Qb6 54. Qh5 { 0.93/13 0:00:38.6 } Re7 55. Ra1 { 0.97/12 0:00:34.5 (PB: 0:00:04.4 ) } Qxc5 56. Ra8+ { 2.16/10 0:01:06.8 } Kg7 57. g3 { 2.14/10 0:00:40.4 (PB: 0:00:40.3 ) } f3 58. Qg5+ { 3.13/11 0:01:54.4 (PB: 0:01:54.3 ) } Kf7 59. Rf1 { 2.82/11 0:00:47.8 } Ke6 60. Qxe3+ { 5.63/11 0:02:34.4 } Kd6 61. Qh6+ { 6.33/11 0:00:33.0 } Kd7 62. Rfa1 { 7.40/11 0:01:35.6 (PB: 0:01:35.5 ) } Rc4 63. b6 { 8.88/9 0:00:26.6 } Ra4 64. R8xa4 { 15.44/9 0:03:46.5 } {thebaron resigns}1-0 > >54. Qh5 Re7 55. Ra1! { > [D]7k/4r2p/1q6/1PNp3Q/3r1p2/4n2P/6P1/R5RK b - - 18 55 > >I know, I've been generous with diagrams, but this position deserves one. A >knight sac out of the blue. It is not difficult to see for engines that this >will at least draw for white. But in fact white is winning here. Black has no >option than to take the knight } > >Qxc5 56. Ra8+ Kg7 57. g3 f3 58. Qg5+ Kf7 { > >[D] R7/4rk1p/8/1Pqp2Q1/3r4/4npPP/8/6RK w - - 2 59 > >Can't help it: Another Diagram :-). Bringer offers the rook here: Rf1! >Peter and I were completely lost and could not think of anything else than that >there must have been a forced mate somewhere } > >59. Rf1! Ke6 60. Qxe3+ Kd6 61. Qh6+ Kd7 62. Rfa1 >Rc4 63. b6 Ra4 64. R8xa4 > >{thebaron resigns} 1-0 > >The final position is a mate is 8 moves. >
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