Author: Uri Blass
Date: 05:18:39 09/09/01
Go up one level in this thread
On September 09, 2001 at 05:46:44, Gian-Carlo Pascutto wrote: >On September 09, 2001 at 04:59:28, Dave Gomboc wrote: > >>So what is the way to win the piece? (What is the PV?) > >See the actual game: > >[Event "ACM 1991"] >[Site ""] >[Date ""] >[Round ""] >[White "Cray Blitz"] >[WhiteElo ""] >[Black "Deep Thought II"] >[BlackElo ""] >[Result "0-1"] > >1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6 6. f4 e5 >7. Nxc6 bxc6 8. fxe5 Ng4 9. Be2 Nxe5 10. Be3 Be7 11. O-O Be6 >12. Qd4 O-O 13. Rad1 f6 14. b3 Qe8 15. Na4 Qg6 16. Bf4 Rf7 17. Qe3 >Raf8 18. Qxa7 Qxe4 19. Bd3 Qb4 20. Qe3 Ra8 21. c3 Qb7 22. Rf2 >Qa7 23. Qxa7 Rxa7 24. Be3 Ra5 25. Bb6 Ra8 26. Bc2 Bf8 27. Re1 >c5 28. Be4 Ra6 29. Rb1 f5 30. Bc2 Rb7 31. Bd8 g6 32. Re1 c4 >33. Rb1 Bd7 34. Nb2 Ra8 35. Bg5 Rxa2 36. b4 Bb5 37. Re2 Bg7 >38. Nd1 Ra6 39. Bd2 Nd3 40. Ne3 Ra2 41. Bxd3 cxd3 42. Rf2 Rxd2 >43. Rxd2 Bxc3 44. Nf1 Bxd2 45. Nxd2 Re7 46. Nf3 h6 47. Rb2 Re4 >48. Kf2 g5 49. g3 f4 50. gxf4 Rxf4 51. Kg3 h5 52. Nd2 h4+ 53. Kg2 >Bc6+ 54. Kg1 Rg4+ 55. Kf2 Rg2+ 56. Ke3 Bb5 57. Ra2 Rxh2 58. Ra5 >Re2+ 59. Kd4 h3 60. Rxb5 Rg2 61. Rb8+ Kg7 62. Rb7+ Kg6 63. Rd7 0-1 > >-- >GCP Crafty is superior relative to Cray blitz. It knows not to play 32.Re1 Note that I believe that even after 32.Re1 white is not losing a piece but 32.Re1 is a positional error. Cray Blitz - Deep Thought II 3B1bk1/1r5p/r2pb1p1/2p1np2/N7/1PP5/P1B2RPP/1R4K1 w - - 0 1 Analysis by Crafty 18.10: 32.Re1 ² (0.52) Depth: 1/7 00:00:00 32.Re1 Be7 ² (0.39) Depth: 2/7 00:00:00 32.Re1 Bg7 33.c4 ² (0.53) Depth: 3/8 00:00:00 32.Re1 Bg7 33.c4 Rxa4 34.bxa4 Bxc4 ² (0.46) Depth: 4/12 00:00:00 32.Re1 Bg7 33.c4 Rxa4 34.bxa4 Bxc4 ² (0.46) Depth: 5/12 00:00:00 32.Re1 Bg7 33.c4 Rd7 34.Bg5 Rxa4 35.bxa4 Bxc4 ² (0.32) Depth: 6/18 00:00:00 30kN 32.Re1 c4 33.Rb1 Bd7 34.Rff1 Bg7 35.Rfe1 = (0.14) Depth: 7/18 00:00:01 215kN 32.Re1 c4 33.Rb1 Bg7 34.Re2 Ra8 35.Bg5 Re8 = (-0.08) Depth: 8/20 00:00:02 559kN 32.Bg5 Bg7 33.Bf4 Bd7 34.Re1 Bxa4 35.bxa4 Rab6 36.a5 = (0.08) Depth: 8/20 00:00:03 1288kN 32.Bg5 Bg7 33.Re2 Bd7 34.Ree1 h6 35.Bf4 Bxa4 36.bxa4 Rab6 37.Rxb6 Rxb6 = (0.01) Depth: 9/22 00:00:07 2526kN 32.Bg5 Bg7 33.Re2 Bc4 34.Re3 Bb5 35.Rbe1 = (0.00) Depth: 10/23 00:00:15 6162kN 32.Bg5 Bd7 33.Re1 c4 34.Bf4 Bxa4 35.bxa4 = (-0.09) Depth: 11/25 00:00:46 19021kN 32.Bg5 Bd7 33.Re1 c4 34.Rfe2 Bb5 35.Rd2 Be7 36.Bh6 Bh4 37.Re3 Re7 = (-0.06) Depth: 12/27 00:01:38 42132kN 32.Bg5 Bd7 33.Rd1 c4 34.Bf4 Bb5 35.Rd5 Nf7 36.Bg3 Bxa4 37.bxa4 Rb2 38.Rd4 Rc6 ³ (-0.30) Depth: 13/28 00:04:24 114858kN 32.Bg5 Bd7 33.Re1 Bg7 34.Bf4 Bb5 35.g3 Bxa4 36.bxa4 c4 37.h3 Rab6 38.a3 Rb2 39.Kh2 ³ (-0.29) Depth: 14/31 00:12:17 323055kN (Blass, Tel-aviv 09.09.2001) Maybe Bob should investigate how is it possible that Cray blitz with it's 7M nodes per seconds could not see that 32.Re1 is bad when there is no problem with 32.Bg5 Here is Crafty's analysis after 32.Re1 f4 Cray Blitz - Deep Thought II 3B1bk1/1r5p/r2pb1p1/4np2/N1p5/1PP5/P1B2RPP/4R1K1 w - - 0 1 Analysis by Crafty 18.10: 33.b4 ± (1.06) Depth: 1/10 00:00:00 33.b4 Rba7 ± (0.86) Depth: 2/10 00:00:00 33.b4 Rba7 34.Ba5 ² (0.58) Depth: 3/11 00:00:00 33.b4 Rba7 34.Ba5 Re7 ² (0.33) Depth: 4/11 00:00:00 33.b4 Bd7 34.Ba5 Nc6 35.Rf4 Nxa5 36.bxa5 ³ (-0.56) Depth: 5/15 00:00:00 33.Rb1 = (-0.16) Depth: 5/15 00:00:00 33.Rb1 Bd7 34.Rff1 Bg7 35.Rfe1 = (0.14) Depth: 5/15 00:00:00 33.Rb1 Bg7 34.Re2 Rb8 35.Bg5 Re8 = (-0.08) Depth: 6/17 00:00:00 132kN 33.Rb1 Bg7 34.Bg5 Bd7 35.Re1 Bxa4 36.bxa4 Rab6 = (-0.05) Depth: 7/18 00:00:01 369kN 33.Rb1 Be7 34.Bxe7 Rxe7 35.Ra1 Rb7 36.b4 Rba7 37.Rd2 Rxa4 38.Bxa4 Rxa4 39.Rxd6 = (-0.13) Depth: 8/19 00:00:03 977kN 33.Rb1 Bd7 34.Rbf1 Bxa4 35.bxa4 Be7 36.Bxe7 Rxe7 37.Rf4 Rb6 38.a5 ³ (-0.46) Depth: 9/22 00:00:06 2472kN 33.Rb1 Bd7 34.Rff1 Bg7 35.Bg5 Nd3 36.Bd2 Bxa4 37.bxa4 Rab6 38.Bxd3 cxd3 39.Rxb6 Rxb6 ³ (-0.52) Depth: 10/25 00:00:14 5550kN 33.Rb1 Bd7 34.Rff1 Bh6 35.h3 Rb8 36.Bh4 Be3+ 37.Bf2 Bxf2+ 38.Kxf2 Nd3+ 39.Kg3 Bxa4 40.bxa4 Rab6 41.Rxb6 Rxb6 42.Bxd3 cxd3 ³ (-0.56) Depth: 11/25 00:00:32 13652kN 33.Rb1 Bd7 34.Bg5 Bxa4 35.bxa4 Rxb1+ 36.Bxb1 Rxa4 37.Rb2 h6 38.Be3 Kf7 39.Re2 Nd3 40.Bc2 µ (-0.72) Depth: 12/28 00:01:21 34798kN 33.Rb1 Bd7 34.Rff1 Bh6 35.h3 Bc6 36.Bh4 Nd3 37.Rfd1 Bxa4 38.bxa4 Rxb1 39.Rxb1 Be3+ 40.Kh2 Kf7 ³ (-0.63) Depth: 13/29 00:04:22 114289kN 33.Rb1 Bd7 34.Rff1 h6 35.Bh4 Bg7 36.Rfe1 Nd3 37.Re7 Bf8 38.Re3 Bxa4 39.bxa4 Rxb1+ 40.Bxb1 Rxa4 41.Bf6 ³ (-0.66) Depth: 14/31 00:09:30 249774kN (Blass, Tel-aviv 09.09.2001) The analysis after 33.Rb1 Bd7 Cray Blitz - Deep Thought II 3B1bk1/1r1b3p/r2p2p1/4np2/N1p5/1PP5/P1B2RPP/1R4K1 w - - 0 1 Analysis by Crafty 18.10: 34.Re1 Bxa4 35.bxa4 ² (0.39) Depth: 1/11 00:00:00 34.Re1 Nd3 35.Bxd3 cxd3 ² (0.31) Depth: 2/11 00:00:00 34.Re1 Bxa4 35.bxa4 Nd3 = (0.07) Depth: 3/12 00:00:00 34.Rff1 Bg7 35.Rfe1 = (0.14) Depth: 3/12 00:00:00 34.Rff1 Rb8 35.Bf6 Re8 = (0.02) Depth: 4/13 00:00:00 34.Rff1 Bg7 35.Bg5 Bxa4 36.bxa4 Rab6 37.Rxb6 Rxb6 = (-0.08) Depth: 5/16 00:00:00 34.Rff1 Bg7 35.Bg5 Nd3 36.Rbd1 Bxa4 37.bxa4 ³ (-0.33) Depth: 6/17 00:00:00 65kN 34.Rff1 Bh6 35.Rfe1 Bxa4 36.bxa4 Rxb1 37.Rxb1 Bd2 38.Rb7 Bxc3 ³ (-0.54) Depth: 7/19 00:00:01 307kN 34.Rbf1 Bxa4 35.bxa4 Be7 36.Bxe7 Rxe7 37.Rf4 Rb6 38.a5 ³ (-0.46) Depth: 7/19 00:00:01 449kN 34.Rbf1 Bg7 35.Bh4 Bxa4 36.bxa4 Nd3 37.Rf3 Bxc3 38.Bxd3 cxd3 39.Rxd3 Rxa4 40.Rxc3 Rxh4 µ (-0.86) Depth: 8/23 00:00:03 999kN 34.Rff1 Bg7 35.Bg5 Nd3 36.Bd2 Bxa4 37.bxa4 Rab6 38.Bxd3 cxd3 39.Rxb6 Rxb6 ³ (-0.52) Depth: 8/23 00:00:03 1318kN 34.Rff1 Bh6 35.h3 Rb8 36.Bh4 Be3+ 37.Bf2 Bxf2+ 38.Kxf2 Nd3+ 39.Kg3 Bxa4 40.bxa4 Rab6 41.Rxb6 Rxb6 42.Bxd3 cxd3 ³ (-0.56) Depth: 9/23 00:00:09 3416kN 34.Rff1 Bh6 35.h3 Bxa4 36.bxa4 Rxb1 37.Rxb1 Bd2 38.Bh4 Bxc3 39.Rb8+ Kg7 40.Rb7+ Nf7 µ (-0.89) Depth: 10/26 00:00:16 6440kN 34.Re2 Bxa4 35.bxa4 Rxb1+ 36.Bxb1 Rxa4 37.Bg5 Nd3 38.Kf1 Kf7 39.Bd2 µ (-0.85) Depth: 10/26 00:00:28 11864kN 34.Bg5 Bxa4 35.bxa4 Rxb1+ 36.Bxb1 Rxa4 37.Rb2 h6 38.Be3 Kf7 39.Re2 Nd3 40.Bc2 µ (-0.72) Depth: 10/26 00:00:36 15113kN 34.Bg5 Bxa4 35.bxa4 Rxb1+ 36.Bxb1 Rxa4 37.Rb2 h6 38.Be3 Nd3 39.Rb7 Bg7 µ (-0.87) Depth: 11/27 00:00:43 18344kN 34.Rff1 Bh6 35.h3 Bxa4 36.bxa4 Rxb1 37.Rxb1 Bd2 38.Bh4 Bxc3 39.Rb8+ Kf7 40.Rb7+ Ke6 41.Rxh7 ³ (-0.68) Depth: 11/27 00:01:25 36086kN 34.Rff1 h6 35.Rfe1 Bg7 36.Bh4 Nd3 37.Re7 Bf8 38.Re3 Bxa4 39.bxa4 Rxb1+ 40.Bxb1 Rxa4 41.Bf6 ³ (-0.66) Depth: 12/29 00:03:10 80895kN 34.Rff1 h6 35.Rfe1 Bg7 36.Bh4 Nd3 37.Re7 Bf8 38.Re3 Bxa4 39.bxa4 Rxb1+ 40.Bxb1 Rxa4 41.Be7 f4 µ (-0.73) Depth: 13/32 00:04:39 119510kN 34.Rff1 Bh6 35.h3 Bxa4 36.bxa4 Rxb1 37.Rxb1 Bd2 38.Rb8 Nc6 39.Rc8 Kf7 40.Bc7 d5 41.Rh8 Bxc3 42.Rxh7+ µ (-0.96) Depth: 14/32 00:09:25 246640kN (Blass, Tel-aviv 09.09.2001) Deep Fritz is more optimistic for black in that position and it believes that 29. Rb1 was the first positional mistake of Cray blitz Cray Blitz - Deep Thought II 5bk1/5rpp/rB1pbp2/2p1n3/N3B3/1PP5/P4RPP/4R1K1 w - - 0 1 Analysis by Deep Fritz: 29.Nxc5-- ³ (-0.66) Depth: 1/3 00:00:00 29.Nxc5-- dxc5 -+ (-1.44) Depth: 1/3 00:00:00 29.Rfe2! = (0.09) Depth: 1/5 00:00:00 29.Rfe2! ± (0.84) Depth: 1/5 00:00:00 29.Rfe2-- ² (0.53) Depth: 2/8 00:00:00 29.Rfe2-- ² (0.53) Depth: 2/8 00:00:00 29.Rd2! ² (0.56) Depth: 2/8 00:00:00 29.Rd2 Bd7 30.Bb7 ² (0.56) Depth: 3/11 00:00:00 29.Rd2 f5 30.Bd5 Re7 ² (0.56) Depth: 4/11 00:00:00 2kN 29.Rd2 f5 30.Bd5 Bxd5 31.Rxd5 Be7 ² (0.47) Depth: 5/15 00:00:00 7kN 29.Rd2 c4 30.Bd5 Bxd5 31.Rxd5 Rb7 32.Rb5 ² (0.31) Depth: 6/20 00:00:00 54kN 29.Rd2-- = (0.00) Depth: 7/18 00:00:00 147kN 29.Rd2-- Bd7 30.Bb7 Rxa4 31.Rxe5 Rxa2 32.Red5 ³ (-0.62) Depth: 7/18 00:00:00 159kN 29.Rfe2! ³ (-0.59) Depth: 7/19 00:00:00 178kN 29.Rfe2! c4 30.Be3 cxb3 31.axb3 Bxb3 32.Nb6 Rfa7 33.Nd5 = (-0.22) Depth: 7/19 00:00:00 206kN 29.Kf1! = (-0.19) Depth: 7/20 00:00:00 254kN 29.Kf1! c4 30.Rb1 f5 31.Bc2 Ng4 32.Re2 cxb3 = (-0.06) Depth: 7/22 00:00:00 288kN 29.Rd1! = (-0.03) Depth: 7/22 00:00:00 492kN 29.Rd1! Bd7 30.Rb1 Re7 31.Bd5+ Be6 32.Bxe6+ Rxe6 33.c4 = (0.22) Depth: 7/22 00:00:00 530kN 29.Rd1 f5 30.Bd5 Bxd5 31.Rxd5 Nc4 32.bxc4 Rxa4 33.Re2 Rxc4 = (0.16) Depth: 8/23 00:00:01 785kN 29.Rd1 Rd7 30.Rfd2 c4 31.Bd5 Bxd5 32.Rxd5 Rb7 33.Rb5 Nd3 = (0.06) Depth: 9/23 00:00:02 1610kN 29.Rd1 Rd7 30.h3 c4 31.Rb1 d5 32.Bc2 Bd6 33.Bd4 cxb3 34.axb3 = (-0.06) Depth: 10/24 00:00:06 4001kN 29.Rd2! = (-0.03) Depth: 10/26 00:00:09 5341kN 29.Rd2! Bd7 30.Bb7 Rxa4 31.bxa4 Nc4 32.Bd5 Nxb6 = (0.00) Depth: 10/26 00:00:09 5616kN 29.Rd2 Rd7 30.Bd3 c4 31.Be2 Rb7 32.Bd4 Ra5 33.Bxe5 dxe5 34.Bf3 Re7 = (-0.06) Depth: 11/29 00:00:17 10502kN 29.Rd2 Rd7 30.Kf1 Rxa4 31.bxa4 Nc4 32.Rde2 Nxb6 33.Bxh7+ Kxh7 34.Rxe6 = (-0.12) Depth: 12/33 00:00:51 32402kN 29.Rd2 g6 30.Bd8 Bh6 31.Rdd1 Bg4 32.Rd5 Be6 33.Rdd1 Bg4 34.Rd5 Be6 = (0.00) Depth: 13/38 00:02:35 99075kN 29.Rd2 g6 30.h3 c4 31.Rb1 cxb3 32.axb3 f5 33.Bc2 f4 34.Rf2 Be7 = (-0.12) Depth: 14/34 00:04:39 178856kN (Blass, Tel-aviv 09.09.2001) Cray Blitz - Deep Thought II [D]5bk1/5rpp/rB1pb3/2p1np2/N3B3/1PP5/P4RPP/1R4K1 w - - 0 1 Analysis by Deep Fritz: 30.Nxc5-- µ (-0.94) Depth: 1/3 00:00:00 30.Nxc5-- dxc5 -+ (-1.62) Depth: 1/7 00:00:00 30.Bf3! ³ (-0.50) Depth: 1/7 00:00:00 30.Bf3! Nxf3+ 31.Rxf3 = (0.03) Depth: 1/7 00:00:00 30.Bf3 Re7 = (0.00) Depth: 2/6 00:00:00 30.Bf3 Nxf3+ 31.Rxf3 Re7 = (0.00) Depth: 3/10 00:00:00 30.Bc2! = (-0.12) Depth: 3/10 00:00:00 30.Bc2! Rb7 31.Rbf1 = (0.00) Depth: 3/12 00:00:00 1kN 30.Bc2 f4 31.c4 d5 32.Bxc5 = (-0.09) Depth: 4/13 00:00:00 2kN 30.Bf3! = (-0.06) Depth: 4/13 00:00:00 3kN 30.Bf3! Re7 31.Rd1 Nxf3+ = (-0.03) Depth: 4/13 00:00:00 3kN 30.Bf3 Nxf3+ 31.Rxf3 Be7 32.Re1 Bd5 = (0.00) Depth: 5/16 00:00:00 9kN 30.Bf3-- ³ (-0.31) Depth: 6/18 00:00:00 21kN 30.Bf3-- Nxf3+ 31.Rxf3 Rb7 32.Re1 Bd7 33.Bd8 ³ (-0.59) Depth: 6/18 00:00:00 23kN 30.Bc2! ³ (-0.56) Depth: 6/18 00:00:00 24kN 30.Bc2! g6 31.Re1 Bg7 32.Rd2 Rd7 = (-0.09) Depth: 6/18 00:00:00 32kN 30.Bc2 Rb7 31.Bxf5 Bxf5 32.Rxf5 Nd7 33.Rbf1 Rxa4 34.bxa4 = (-0.12) Depth: 7/21 00:00:00 66kN 30.Bc2 Rb7 31.Bd8 g6 32.Re2 Bg7 33.Rbe1 Kf7 ³ (-0.28) Depth: 8/22 00:00:00 163kN 30.Bc2 Rb7 31.Bd8 g6 32.Re1 Bg7 33.Rfe2 Bd7 34.Bg5 Bxa4 = (-0.25) Depth: 9/24 00:00:00 385kN 30.Bc2 Rb7 31.Bd8 g6 32.Re1 Bg7 33.Rfe2 Bd7 34.Bg5 Bxa4 35.bxa4 = (-0.25) Depth: 10/24 00:00:01 898kN 30.Bc2 Rb7 31.Bd8 g6 32.Re2 Bg7 33.Rbe1 Bd7 34.Bg5 h6 35.Bf4 Bxa4 ³ (-0.37) Depth: 11/27 00:00:03 2209kN 30.Bc2 Rb7 31.Bd8 g6 32.Re2 Bg7 33.Rbe1 Bd7 34.Bg5 h6 35.Bf4 Bxa4 ³ (-0.37) Depth: 12/29 00:00:07 4620kN 30.Bc2 Rb7 31.Bd8 g6 32.Re2 Bg7 33.Bg5 Bd7 34.Rbe1 Bb5 35.Re3 ³ (-0.56) Depth: 13/33 00:00:24 16139kN 30.Bc2 Rb7 31.Bd8 g6 32.Bg5 Bg7 33.Bf4 Bd7 34.Rd1 Bxa4 35.bxa4 c4 ³ (-0.53) Depth: 14/32 00:01:33 62289kN (Blass, Tel-aviv 09.09.2001) Uri
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