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Subject: Re: Can any program find this great sacrifice played be Botvinnik !

Author: Ernst Walet

Date: 09:34:57 04/19/03

Go up one level in this thread


On April 19, 2003 at 12:25:56, Jorge Pichard wrote:

>In what is certainly one of the best games ever played, Botvinnik unleashes an
>unbelievable Bishop sacrifice on his 30th move. Capablanca accepts the sac and
>then has to hope that he can keep Botvinnik's king in check to avoid the mate.
>Botvinnik has calculated further and Capablanca throws in the towel 11 moves
>later. Probably one of the deepest combinations ever played.
>
>[Event "Netherlands"]
>[Site "?"]
>[Date "1938.??.??"]
>[Round "?"]
>[White "Botvinnik Mikhail M"]
>[Black "Capablanca J"]
>[Result "1-0"]
>[Opening "Nimzo-Indian, 4.e3, Botvinnik System"]
>
>1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 d5 5. a3 Bxc3+ 6. bxc3 c5 7. cxd5 exd5 8.
>Bd3 O-O 9. Ne2 b6 10. O-O Ba6 11. Bxa6 Nxa6 12. Bb2 Qd7 13. a4 Rfe8 14. Qd3 c4
>15. Qc2 Nb8 16. Rae1 Nc6 17. Ng3 Na5 18. f3 Nb3 19. e4 Qxa4 20. e5 Nd7 21. Qf2
>g6 22. f4 f5 23. exf6 Nxf6 24. f5 Rxe1 25. Rxe1 Re8 26. Re6 Rxe6 27. fxe6 Kg7
>28. Qf4 Qe8 29. Qe5 Qe7 30. Ba3!
>
>[D]8/p3q1kp/1p2Pnp1/3pQ3/2pP4/1nP3N1/1B4PP/6K1 w - - 0 29
>
>30...Qxa3 31. Nh5+ gxh5 32. Qg5+ Kf8 33. Qxf6+ Kg8 34. e7 Qc1+ 35. Kf2 Qc2+ 36.
>Kg3 Qd3+ 37. Kh4 Qe4+ 38. Kxh5 Qe2+ 39. Kh4 Qe4+ 40. g4 Qe1+ 41. Kh5 1-0


CM9000 needs 14 seconds on my XP2400@2200 to fid this move.

Time	Depth	Score	Positions	Moves
0:00	1/3	-0.73	785		29.Qe2 Kf8 30.Qe3
0:00	1/3	0.00	2293		29.Ba3 Qxa3 30.Qc7+ Kh8 31.Qb8+
					Kg7 32.Qc7+
0:00	1/4	0.00	3197		29.Ba3 Qxa3 30.Qc7+ Kh8 31.Qb8+
					Kg7 32.Qc7+
0:00	1/5	0.00	13494		29.Ba3 Qxa3 30.Qc7+ Kh8 31.Qb8+
					Kg7 32.Qc7+
0:00	1/6	0.00	59931		29.Ba3 Qxa3 30.Qc7+ Kh8 31.Qb8+
					Kg7 32.Qc7+
0:00	1/7	0.00	97625		29.Ba3 Qxa3 30.Qc7+ Kh8 31.Qb8+
					Kg7 32.Qc7+
0:00	1/7	0.36	170033		29.Nf1 Na5 30.Ne3 Nc6 31.Nxd5 Nxe5
					32.Nxe7
0:00	1/8	0.55	256441		29.Nf1 Kg8 30.Ne3 a5 31.Nxd5 Nxd5
					32.Qxd5 b5 33.Qxb5 Qxe6 34.Qb8+ Kg7
0:01	1/9	0.56	541194		29.Nf1 Na5 30.Ne3 Nc6 31.Nxd5 Nxe5
					32.Nxe7 Nd3 33.Ba3 a5
0:03	1/10	0.60	1094344		29.Nf1 Na5 30.Ne3 Nc6 31.Nxd5 Nxe5
					32.Nxe7 Nd3 33.Ba3 a5 34.d5
0:05	1/11	0.00	1941792		29.Nf1 Na5 30.Ba3 Qxa3 31.Qc7+
					Kh8 32.Qb8+ Kg7 33.Qc7+
0:14	1/11	3.24	5037475		29.Ba3 Qe8 30.Qc7+ Kg8 31.Be7 Kg7
					32.Bd8+ Kf8 33.Bxf6 Qxe6 34.Bg7+
					Ke8 35.Qb8+ Kd7 36.Qxa7+ Kc6 37.Be5
0:18	1/12	3.24	6821644		29.Ba3 Qe8 30.Qc7+ Kg8 31.Be7 Kg7
					32.Bd8+ Kf8 33.Bxf6 Qxe6 34.Bg7+
					Ke8 35.Qb8+ Kd7 36.Qxa7+ Ke8 37.Be5
					h6
0:30	2/13	3.36	11136596	29.Ba3 Qe8 30.Qc7+ Kg8 31.Be7 Kg7
					32.Qxa7 Nd2 33.Bd8+ Kf8 34.Bxf6
					Qxe6 35.Be5 h5 36.h3 Nb3 37.Qb8+
					Kf7 38.Qc7+ Ke8
1:26	3/14	3.72	33236037	29.Ba3 Qe8 30.Qc7+ Kg8 31.Be7 Kg7
					32.Qxa7 Nd2 33.Bd8+ Kf8 34.Bxf6
					Qxe6 35.Be5 h5 36.Qg7+ Ke8 37.Qh6
					Ne4 38.Nxh5 Qf7 39.Nf4 Nxc3 40.Qxg6
					Qxg6 41.Nxg6

Ernst.



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