Author: Bas Hamstra
Date: 08:22:13 02/10/04
Go up one level in this thread
On February 09, 2004 at 10:00:00, Albert Silver wrote: >Jose Garcia Ruvalcaba posted some correspondence games of his at CTF, including >a loss in 1999 to Anatoly Sidenko. Sidenko came up with a superb move, that >makes a good test position for today's super bots. > > Albert > >[Event "CM-1999-0-00086"] >[Site "IECG"] >[Date "1999.08.30"] >[Round "1"] >[White "Sidenko, Anatoly"] >[Black "Garcia Ruvalcaba, Jose"] >[Result "1-0"] > >1. d4 Nf6 2. Bg5 g6 3. Nc3 d5 4. f3 Bg7 5. Qd2 Nc6 6. e4 dxe4 7. d5 e3 8. >Bxe3 Nb4 9. O-O-O c6 10. dxc6 Qxd2+ 11. Rxd2 Nxc6 12. Bb5 O-O 13. Nge2 e5 >14. Rhd1 Be6 15. f4 Bh6 16. Rd6 Rfc8 17. Kb1 Ng4 18. Bc1 Bf8 19. Bxc6 bxc6 >20. fxe5 Nxe5 21. R6d4 Bg7 22. Nf4 Bg4 23. Re1 Rd8 24. Rde4 f6 25. h3 Bf5 >26. Rb4 Bf8 27. Ra4 a5 28. g4 Bd7 29. Ne4 Kf7 > >[D]r2r1b2/3b1k1p/2p2pp1/p3n3/R3NNP1/7P/PPP5/1KB1R3 w - - 0 30 > >30. Nxf6!! Kxf6 31. g5+ Kf5 32. Nd5! Tao 5.6 finds Nxf6 in 20 minutes, however not with a drawing score: 8.01 0:02 -0.49 1.Bd2 Nf3 2.Rd1 f5 3.Bxa5 Rxa5 4.Ng5+ Nxg5 5.Rxa5 (639.284) 286.3 8.08 0:03 -0.49++ 1.g5 (1.039.424) 307.2 8.08 0:03 -0.48 1.g5 Nf3 2.Rf1 Nxg5 3.Nxg5+ fxg5 4.Nh5+ Bf5 5.Bxg5 Be7 (1.094.028) 307.2 9.01 0:05 -0.33 1.g5 Nf3 2.Rf1 Nxg5 3.Nxf6 Bf5 4.h4 Kxf6 5.Nh5+ gxh5 6.Bxg5+ Ke5 7.Bxd8 Rxd8 8.Rxa5+ c5 (1.698.119) 319.9 10.01 0:09 -0.55 1.g5 Nf3 2.Rf1 c5 3.Ra3 Bf5 4.Nxf6 Nxg5 5.N6d5 Bg7 (3.410.316) 347.0 11.01 0:31 -0.38 1.g5 Nf3 2.Rf1 Nxg5 3.Nxg5+ fxg5 4.Nh5+ Bf5 5.Bxg5 Be7 6.Bxe7 Kxe7 7.Nf4 (11.417.483) 360.2 12.01 1:24 -0.52 1.g5 Bb4 2.Rxb4 axb4 3.Nxf6 Ra5 4.Re4 Rb5 5.Nxh7 Rh8 6.Nf6 Bxh3 (30.338.672) 358.8 12.08 3:05 -0.52++ 1.Re2 (65.864.492) 355.1 12.08 3:13 -0.51 1.Re2 c5 2.Ra3 Bb5 3.Re1 Bc6 4.Nd3 Nxd3 5.Rxd3 Rxd3 6.cxd3 Re8 (68.765.282) 354.5 13.01 8:54 -0.48 1.Re2 Bb4 2.a3 c5 3.Nd6+ Ke7 4.axb4 cxb4 5.Rxa5 Rxa5 6.Nb7 Rda8 7.Nxa5 Rxa5 (188.528.521) 352.5 14.01 21:52 -0.49 1.Re2 c5 2.Ra3 Bb5 3.Re1 Bc6 4.Rae3 Bh6 5.R3e2 Nf3 6.Rf1 Nd4 7.Ree1 c4 (462.592.606) 352.3 14.03 24:09 -0.49++ 1.Nxf6 (512.349.402) 353.4 14.03 26:31 -0.42 1.Nxf6 Kxf6 2.g5+ Kf5 3.Ne2 Ke6 4.Re4 Bg7 5.Bf4 Re8 6.Nc3 Kd6 7.Rd1+ Kc7 8.Rde1 h5 9.Bxe5+ Bxe5 10.Rxe5 Rxe5 11.Rxe5 Bxh3 (567.657.843) 356.7 Here is what Tao thinks after playing Nxf6 Kxf6 g5 Nd5: 8.01 0:00 +1.06 2...Kf5 3.Rf1 Bb4 4.Nd5+ Ke6 5.Nc7+ Kd6 6.Nxa8 Rxa8 7.a3 (231.346) 260.5 9.01 0:02 +0.99 2...Kf5 3.Rf1 Bb4 4.Nd5+ Ke6 5.Nc7+ Ke7 6.Bf4 Bxh3 7.Rh1 Bg2 8.Rxh7+ Kd6 9.Nxa8 Rxa8 (700.987) 330.7 best move: Kf6-f5 time: 0:07.944 min n/s: 382.080 nodes: 3.031.039 7.01 0:00 -1.06 3.Rf1 Bb4 4.Nd5+ Ke6 5.Nc7+ Kd6 6.Nxa8 Rxa8 7.a3 (177.287) 205.9 8.01 0:01 -0.99 3.Rf1 Bb4 4.Nd5+ Ke6 5.Nc7+ Ke7 6.Bf4 Bxh3 7.Rh1 Bg2 8.Rxh7+ Kd6 9.Nxa8 Rxa8 (339.619) 272.5 9.01 0:02 -1.05 3.Rf1 Bb4 4.Nd5+ Ke6 5.Nc7+ Kd6 6.Nxa8 Rxa8 7.Rd1+ Kc7 8.Bf4 Re8 (893.720) 324.3 best move: Re1-f1 time: 0:03.189 min n/s: 329.533 nodes: 1.048.575 6.01 0:00 +1.90 3...Bd6 4.Ne3+ Ke6 5.Nc4 c5 6.Rxa5 Rxa5 7.Nxa5 (67.296) 7.01 0:01 +0.45 3...Bd6 4.Rf4+ Ke6 5.Nb6 Rf8 6.Nxa8 Rxa8 7.Bd2 (421.291) 298.7 7.13 0:01 +0.45++ 3...Bb4 (540.406) 303.2 7.13 0:01 +0.99 3...Bb4 4.Rf1+ Ke6 5.Nc7+ Ke7 6.Bf4 Bxh3 7.Rh1 Bg2 8.Rxh7+ Kd6 9.Nxa8 Rxa8 (594.427) 303.2 8.01 0:02 +0.79 3...Bb4 4.Nxb4 axb4 5.Rxb4 Ra5 6.Bd2 Ke6 7.Rbe4 (775.359) 308.3 9.01 0:03 +0.78 3...Bb4 4.Rf1+ Ke6 5.Nc7+ Ke7 6.Bf4 Bd6 7.Nxa8 Rxa8 8.Re1 c5 (1.223.917) 333.9 10.01 0:06 +0.82 3...Bb4 4.Rf1+ Ke6 5.Nc7+ Ke7 6.Bf4 Nc4 7.Nxa8 Rxa8 8.c3 c5 9.Re1+ Kf7 (2.230.439) 353.1 11.01 0:16 +0.68 3...Bb4 4.Nxb4 axb4 5.Rxb4 Rf8 6.Rh4 Rfe8 7.Rxh7 Be6 8.Rf1+ Ke4 9.b3 (6.172.711) 370.0 12.01 0:31 -0.35 3...Bb4 4.Nxb4 axb4 5.Rxb4 Re8 6.Rd4 h6 7.gxh6 Re7 8.Bf4 Ra5 9.Bd2 (11.997.499) 375.0 13.01 3:14 -0.48 3...Bb4 4.Nxb4 axb4 5.Rxb4 Re8 6.Rd4 h5 7.b3 Rf8 8.Rxe5+ Kxe5 9.Rxd7 Rad8 10.Rxd8 Rxd8 11.Bb2+ Ke4 (76.427.231) 392.3 And indeed not drawing but even a winning score. Very deep, good position... Best regards, Bas.
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