Author: Ernst Walet
Date: 02:15:24 08/22/02
Go up one level in this thread
On August 21, 2002 at 22:10:29, K. Burcham wrote:
>
>
>GM Anand decides not to take Blacks Rook and lose his own Knight.
>Instead he decides to save his own Knight and capture blacks knight instead
>of Rook. It takes chess tiger 14.0, 8 hours to decide 28.Qxd1 is better.
>What does your program say? Is there another program that will capture
>the Knight instead of Rook as the 2755 GM did?
>
>kburcham
>
>28.Qxd1
>
> [D] 2r2rk1/q3b1pp/p3Np2/1p1P4/6PP/3Q1P2/PPP5/1K1n1B1R w - - 0 1
>
>Chess Tiger 14.0:
>2 x 1533 mhz
>192 megs hash
>
>28.Nxf8 Nf2 29.Qxh7+ Kxf8 30.Qh8+ Kf7 31.Qxc8 Nxh1 32.Qe6+ Ke8 33.d6 Ng3 34.dxe7
>Nxf1 35.Qe2
> ² (0.42) Depth: 11 00:00:02 1018kN
>28.Nxf8 Nf2 29.Qxh7+ Kxf8 30.Qh8+ Kf7 31.Qxc8 Nxh1 32.Qe6+ Kf8 33.d6 Bd8 34.d7
>Be7 35.Qc6 Bd8
> ² (0.62) Depth: 12 00:00:07 3291kN
>28.Nxf8 Nf2 29.Qxh7+ Kxf8 30.Qh8+ Kf7 31.Qxc8 Nxh1 32.Qe6+ Kf8 33.d6 Bd8 34.d7
>Be7 35.Qc6 Bd8 36.Qd6+ Kf7
> ² (0.64) Depth: 13 00:00:16 7331kN
>28.Nxf8 Kxf8 29.Qxd1 Rd8 30.c4 Qc5 31.Qc2 Qe3 32.Qe4 Qd2 33.Be2 bxc4 34.Rd1 Qh6
>35.Bxc4 Qxh4 36.Bxa6
> ± (1.02) Depth: 14 00:07:59 219192kN
>28.Nxf8 Nc3+ 29.bxc3 Bxf8 30.g5 Re8 31.Bh3 Re3 32.Qd4 Qxd4 33.cxd4 Rxf3 34.gxf6
>Rxf6 35.Be6+ Kh8 36.h5 Bb4
> ± (0.80) Depth: 15 00:11:39 320001kN
>28.Nxf8 Nf2 29.Qxh7+ Kxf8 30.Qh8+ Kf7 31.Qxc8 Nxh1 32.Qe6+ Ke8 33.d6 Ng3 34.dxe7
>Qf2 35.Qg8+ Kxe7 36.Qxg7+
> ² (0.50) Depth: 16 00:22:06 624936kN
>28.Nxf8 Nf2 29.Qxh7+ Kxf8 30.Qh8+ Kf7 31.Qxc8 Nxh1 32.Qe6+ Ke8 33.d6 Ng3 34.dxe7
>Qf2 35.Qg8+ Kxe7 36.Qxg7+
> ± (0.78) Depth: 17 00:51:48 1487307kN
>28.Nxf8 Nf2 29.Qxh7+ Kxf8 30.Bd3 Nxd3 31.Qh8+ Kf7 32.Qxc8 Nf4 33.h5 Qd4 34.Qf5
>Kg8 35.Qe4 Qxe4 36.fxe4 b4
> ² (0.46) Depth: 18 01:58:11 3510676kN
>28.Qxd1 Rfe8 29.Bd3 Bd6 30.f4 Qf7 31.Qe1 b4 32.Qe4 Qg6 33.Qxg6 hxg6 34.Bxg6 Re7
>35.Bf5 Ree8 36.Bd3 a5 37.Ba6
> ² (0.64) Depth: 18 08:32:58 14988765kN
>28.Qxd1 Rfe8 29.Bd3 Bd6 30.f4 Qf7 31.Qe1 g6 32.Qe4 Rc5 33.f5
> ± (0.74) Depth: 19 14:02:09 24506796kN
>
>
>[Event "Chess Classic"]
>[Date "2002.08.18"]
>[Round "4"]
>[White "Anand, V." (2755)]
>[Black "Ponomarjow, R." (2743]
>[Result "1-0"]
>[Opening "Sicilian: Najdorf"]
>[ECO "B90"]
>[NIC "SI.14"]
>[Time "08:59:43"]
>
>1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. f3 e6 7. Be3 b5 8. g4
>Nfd7 9. Qd2 Bb7 10. O-O-O Nb6 11. Nb3 N8d7 12. Na5 Qc7 13. Kb1 Be7 14. h4
>O-O 15. Bg5 f6 16. Be3 Ne5 17. Qf2 Nbc4 18. Nxb7 Qxb7 19. Bd4 Rac8 20. Ne2
>Nc6 21. Be3 Nxe3 22. Qxe3 Qa7 23. Qb3 d5 24. exd5 Na5 25. Qd3 Nc4 26. Nf4
>Ne3 27. Nxe6 Nxd1 28. Qxd1 Rfe8 29. Bd3 Qf2 30. f4 Bd6 31. g5 Rxe6 32. dxe6
>Qxf4 33. Rf1 Qe5 34. Re1 Qc5 35. gxf6 gxf6 36. Qg4+ Kh8 37. Rg1 Qc7 38. e7
>{White wins}
>1-0
Fritz 7 needs 41'30" on my computer.
Ernst.
New game
2r2rk1/q3b1pp/p3Np2/1p1P4/6PP/3Q1P2/PPP5/1K1n1B1R w - - 0 1
Analysis by Fritz 7:
1.Nxf8!
± (1.13) Depth: 8/23 00:00:00 185kN
1.Nxf8 Nc3+ 2.bxc3 Bxf8 3.Qf5 Qb7 4.Bd3 g6 5.Qe6+ Kg7
± (1.16) Depth: 8/23 00:00:00 197kN
1.Nxf8 Nc3+ 2.bxc3 Bxf8 3.Qf5 Qb7 4.Bd3 g6 5.Qe6+ Kg7
± (1.16) Depth: 9/26 00:00:00 395kN
1.Nxf8 Nc3+ 2.bxc3 Bxf8 3.Qf5 Rc5 4.h5 Rxc3 5.Bd3 h6 6.Qh7+ Kf7
± (1.38) Depth: 10/29 00:00:02 1284kN
1.Nxf8 Nc3+ 2.bxc3 Bxf8 3.Qf5 Qc7 4.Bd3 g6 5.Qxf6 Qd6 6.Qxd6 Bxd6
+- (1.47) Depth: 11/34 00:00:06 3857kN
1.Nxf8 Nc3+ 2.bxc3 Bxf8 3.Qf5 Rd8 4.Bd3 g6 5.Qe6+ Qf7 6.Qxf7+ Kxf7 7.c4 Bc5
8.cxb5
± (1.22) Depth: 12/34 00:00:11 6533kN
1.Nxf8 Nc3+ 2.bxc3 Bxf8 3.g5 Qc5 4.Bh3 Rc7 5.Be6+ Kh8 6.Qd4 Qxc3 7.Qxc3 Rxc3
8.f4
± (1.13) Depth: 13/37 00:00:28 16837kN
1.Nxf8 Nc3+ 2.bxc3 Bxf8 3.Qf5 Rc5 4.h5 Qf7 5.Bd3 g6 6.hxg6 hxg6 7.Qe6 Qxe6
8.dxe6
± (1.19) Depth: 14/39 00:01:17 45816kN
1.Nxf8 Nc3+ 2.bxc3 Bxf8 3.Qf5 Rc5 4.h5 Qf7 5.Bd3 g6 6.hxg6 hxg6 7.Qe6 Qxe6
8.dxe6
± (1.19) Depth: 15/42 00:04:03 146740kN
1.Nxf8 Nc3+ 2.bxc3 Bxf8 3.Qf5 Rc5 4.Bd3 g6 5.Qxf6 Rxd5 6.h5 Rd6 7.Qh4 Qe7 8.g5
± (1.34) Depth: 16/46 00:16:06 573260kN
1.Nxf8 Nc3+ 2.bxc3 Bxf8 3.Qe4 Qd7 4.Bd3 g6 5.Re1 Rxc3 6.Qe6+ Qxe6 7.Rxe6 Rc5
8.Rxa6
± (1.19) Depth: 17/44 00:27:25 989907kN
1.Qxd1!
± (1.22) Depth: 17/44 00:41:30 1513039kN
1.Qxd1!
± (1.38) Depth: 17/44 00:53:32 1955821kN
1.Qxd1 Rf7 2.Bd3 Qb7 3.h5 Bb4 4.Bf5 Ra8 5.d6 Rc8 6.c3 Ba5 7.Re1
+- (1.47) Depth: 17/44 01:08:52 2516023kN
(Celeron 1.2GHz, 832MB hash, 3, 4 and 5 piece EGTB's 22.08.2002)
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