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Subject: Re: snatching defeat from the jaws of a draw ......

Author: John Merlino

Date: 13:22:31 06/14/03

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On June 14, 2003 at 14:52:09, Mike Byrne wrote:

>...yes I pulled a Kasparov.   I resigned a drawn game.
>
>[Event "75'+30"/40+15'+30""]
>[Site "Secane, PA USA"]
>[Date "2003.06.14"]
>[Round "?"]
>[White "Byrne, Michael"]
>[Black "The King SE"]
>[Result "0-1"]
>[ECO "A45"]
>[PlyCount "82"]
>
>1. d4 Nf6 2. Bf4 d5 3. e3 e6 4. Bd3 Be7 5. Nf3 Nbd7 6. h3 Nh5 7. Bh2 O-O 8. O-O
>Nb6 9. Ne5 Nf6 10. Nf3 Bd7 11. c3 Ba4 12. b3 Bc6 13. Qc2 a6 14. Nbd2 Ba3 15. b4
>Ba4 16. Qb1 Qe7 17. Bc2 Bb5 18. Qb3 Ba4 19. Qb1 Rfd8 20. Ne1 a5 21. Bxa4 Nxa4
>22. Qb3 axb4 23. cxb4 Bxb4 24. Ndf3 Nc3 25. Nd3 Ne2+ 26. Kh1 Bc3 27. Rab1 e5
>28. Qxb7 Rxa2 29. Bxe5 Ne8 30. Rb3 f6 31. Bh2 Qd7 32. Rfb1 Rda8 33. Nf4 Nxf4
>34. Bxf4 R2a7 35. Qb5 c6 36. Qd3 Ba5 37. Kg1 Bd8 38. Qc3 Ra2 39. Rb7 Qc8 40.
>Qc5 R8a4 41. Bd6 Rc4 0-1
>
>Ending position find the draw.   I resigned because I thought my bishop was
>lost.  Egnines find the draw almost instantly
>
>[d]2qbn1k1/1R4pp/2pB1p2/2Qp4/2rP4/4PN1P/r4PP1/1R4K1 w - - 0 42
>
>The King SE is a modify King engine that only searches sd=3. running under F8
>GUI.

Yep, Chessmaster 9000, on a P4-2.4, needs seven seconds to find Rb8 and give it
a draw(ish) score:

Time	Depth	Score	Positions	Moves
0:00	1/4	-0.90	3808		42.Rb8 Qe6 43.Rxd8 Rxc5 44.Bxc5
0:00	1/5	-1.24	13718		42.Rb8 Qf5 43.e4 Qg6 44.Nh4 Qxe4
0:00	1/6	-1.24	52874		42.Rb8 Qf5 43.e4 Qg6 44.Nh4 Qxe4
0:00	1/7	-1.39	101446		42.Rb8 Qf5 43.e4 Qg6 44.Qxc4 dxc4
					45.Rxd8 Qxe4 46.Rb7
0:01	1/8	-1.56	225138		42.Rb8 Qf5 43.e4 Qe6 44.Qxc4 dxc4
					45.Rxd8 Qxe4 46.Rb7 c5
0:02	1/9	-1.29	619109		42.Rb8 Qf5 43.Qb6 Qc2 44.Nh4 Qxf2+
					45.Kh1 Rc1+ 46.Rxc1 Bxb6 47.Rxe8+
					Kf7 48.Re7+ Kf8 49.Rxc6
0:07	1/10	-0.03	1733173		42.Rb8 Qd7 43.R1b7 Ra1+ 44.Kh2
					Qe6 45.Rxd8 Rxc5 46.Bxc5 Ra2 47.Re7
0:15	2/11	0.00	3663454		42.Rb8 Qd7 43.R1b7 Qxb7 44.Rxb7
					Rxc5 45.Bxc5 Ra1+ 46.Kh2 Ra2 47.Kg1
0:34	3/12	0.00	8758847		42.Rb8 Qf5 43.Qb6 Qc2 44.Nh4 Qxf2+
					45.Kh1 Rc1+ 46.Rxc1 Bxb6 47.Rxe8+
					Kf7 48.Re7+ Kg8 49.Re8+
1:26	4/13	0.00	23510207	42.Rb8 Qf5 43.Qb6 Qc2 44.Nh4 Qxf2+
					45.Kh1 Rc1+ 46.Rxc1 Bxb6 47.Rxe8+
					Kf7 48.Re7+ Kg8 49.Re8+
4:16	5/14	0.00	72436085	42.Rb8 Qf5 43.Qb6 Qc2 44.Nh4 Qxf2+
					45.Kh1 Rc1+ 46.Rxc1 Bxb6 47.Rxe8+
					Kf7 48.Re7+ Kg8 49.Re8+
14:48	6/15	0.00	259830693	42.Rb8 Qf5 43.Qb6 Qc2 44.Nh4 Qxf2+
					45.Kh1 Rc1+ 46.Rxc1 Bxb6 47.Rxe8+
					Kf7 48.Re7+ Kg8 49.Re8+

I think the hard part would be, after 42...Qf5, finding 43.Qb6!!

jm



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