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Subject: Re: The best "death-save" I ever saw - diagram

Author: Howard Exner

Date: 07:38:27 03/02/00

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On March 02, 2000 at 10:34:56, Howard Exner wrote:

>On March 02, 2000 at 00:37:40, Mark Longridge wrote:
>
>>This is a game between my dual 400 Mhz running a Crafty clone (cubebox)
>>on FICS against a computer called Roboelvis (also a dual).
>>
>>White looks like it is totally and utterly dead (-10.72 at one point)
>>but it ends in stalemate! I've never seen such a save before.
>>
>>Is this an incredible fluke or did the other computer (also a crafty clone,
>>playing black) just really screw up?
>>
>>[Event "ICS rated standard match"]
>>[Site "freechess.org"]
>>[Date "2000.02.28"]
>>[Round "-"]
>>[White "cubebox"]
>>[Black "roboElvis"]
>>[Result "1/2-1/2"]
>>[WhiteElo "2370"]
>>[BlackElo "2369"]
>>[TimeControl "900+1"]
>>
>>1. d4 Nf6 2. Nf3 e6 3. Bg5 c5 4. e3 Qb6 5. Qc1 Ne4 6. Bf4 d5 7. Bd3 cxd4 8.
>>exd4 Bd6 9. Be3 O-O 10. c4 Bb4+ 11. Nc3 Qa5 12. Bxe4 dxe4 13. Ng5 e5 14. d5
>>Bxc3+ 15. Qxc3 Qxc3+ 16. bxc3 Bf5 17. Rb1 h6 18. Nh3 b6 19. Rb3 Rc8 20. c5
>>bxc5 21. c4 Nd7 22. O-O Rab8 23. Rfb1 Rxb3 24. axb3 Rb8 25. Kh1 a5 26. Ra1
>>Rxb3 27. Rxa5 Rb4 28. Bxc5 Rxc4 29. Be3 Bxh3 30. Ra8+ Kh7 31. gxh3 f5 32.
>>Rd8 Nf6 33. Kg2 f4 34. Ba7 f3+ 35. Kg3 Rc1 36. h4 Rg1+ 37. Kh3 Nh5 38. Be3
>>Nf4+ 39. Bxf4 exf4 40. Rf8 g5 41. hxg5 hxg5 42. d6 e3 43. d7 exf2 44. Rh8+
>>Kg6 45. Rg8+ Kf5 46. Rf8+ Ke6 47. Re8+ Kxd7 48. Re7+ Kc6 49. Rc7+ Kd5 50.
>>Rc5+ Kxc5
>>{Game drawn by stalemate} 1/2-1/2
>>
>>Has anyone seen a lower eval (-10.72 at one point) and still draw?
>
>Thanks for the interesting post. I was looking to see if black could have played
>an alternative line to keep the pressure on white.
>
[D]5R2/7k/3P4/6p1/4pp2/5p1K/5P1P/6r1 b - -
>
>
>id cubebox - roboElvis; bm Rd1;
>I think if a program were to see that deeply into this position at move
>42 instead of e3 it would play Rd1. Then if  43. Kg4 Kg7 44. Rf5 Rg1+
>
>Rebel Century liked 42. e3 with a plus 10 eval for black as well.
>It's a quirky position for chess programs to figure out. The other thread,
>called a "hard endgame", is also giving programs the fits.



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