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Subject: Re: King Safety ??

Author: John Merlino

Date: 12:47:31 12/25/02

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On December 25, 2002 at 13:09:45, Sune Larsson wrote:

>
> [D]5rk1/1ppq1rb1/p2p1nn1/3Pp3/2P1Ppp1/PPN3P1/3BQPB1/2R2RK1 w - - 0 25
>
>
> This position happened in a blitzgame of mine vs CM 9000Utz12 (white).
> It's no longer a question of building a slow attack - instead it's already
> there, in full bloom. Or, another way to put it, white has nothing and
> black has everything. So, how do the programs evaluate such a position
> with some time to think?  A few results:
>
>
> CM 9000Utz12    25.Qd3   -0.15   Ply 14      64 Mb hash
> Shredder PB     25.Qd3   -0.28   Ply 14     128 Mb hash
> Hiarcs 8        25.Qd3   -0.55   Ply 13     128 Mb hash
> Fritz 8         25.Qd3   -0.59   Ply 14     128 Mb hash
> Ruffian         25.Qd3   -0.69   Ply 14     128 Mb hash
> Chess Tiger14   25.Bh1   -1.50   Ply 14      96 Mb hash
> GambitTiger 2   25.Qd3   -2.26   Ply 14      96 Mb hash
>
>
> It was with utmost effort that CM finally realized that it actually
> is *worse* in the diagram position... With a tiny -0.15. CM Utzinger
> has achived great results in comp-comp games and perhaps it's possible
> to adjust the settings in a way that CM sees the danger?! King Safety?
>
> I'm curious of the evals from new programs like Chess Tiger 15, Shredder 7
> and maybe also Schachfreund Utzinger's latest CM personality (a very promising
> one!)?!  The whole game below.
>
>
>[Event "Fischer 5' 3""]
>[Site "Kil"]
>[Date "2002.12.25"]
>[Round "?"]
>[White "CM9 Utz12n"]
>[Black "Larsson"]
>[Result "0-1"]
>[ECO "E60"]
>[PlyCount "86"]
>[EventDate "2002.??.??"]
>
>1. d4 Nf6 2. Nf3 g6 3. c4 Bg7 4. g3 O-O 5. Bg2 d6 6. O-O Bg4 7. h3 Bxf3 8. Bxf3
>Nc6 9. Nc3 Nd7 10. e3 e5 11. d5 Ne7 12. e4 f5 13. Bd2 h6 14. Bg2 f4 15. Rc1 g5
>16. Qg4 Nf6 17. Qe2 Ng6 18. b3 Rf7 19. Rcd1 Qd7 20. a3 Raf8 21. Qd3 a6 22. Rc1
>h5 23. Qe2 g4 24. hxg4 hxg4 25. Qd3 Bh6 26. c5 Rh7 27. c6 bxc6 28. dxc6 Qg7 29.
>gxf4 Bxf4 30. Rfd1 Qh6 31. Bxf4 Nxf4 32. Qg3 N6h5 33. Qe3 Nxg2 34. Qxh6 Rxh6
>35. Nd5 Nh4 36. Rc4 Nf3+ 37. Kf1 Nf4 38. Nxf4 exf4 39. Ke2 Ne5 40. Rc3 Rh2 41.
>Rf1 g3 42. Rcc1 f3+ 43. Kd2 Ng4 0-1
>
> /s

For reference, here is how the default CM9000 personality feels about this
position (this was done on a P3-733):

Time	Depth	Score	Positions	Moves
0:00	1/3	0.68	4118		25.Qd3 f3 26.Bh1 Rd8
0:00	1/4	0.69	7323		25.Qd3 f3 26.Bh1 Ra8 27.Rfe1
0:00	1/5	0.69	12350		25.Qd3 f3 26.Bh1 Ra8 27.Rfe1
0:00	1/6	0.72	30452		25.Qd3 f3 26.Bh1 Re8 27.Rfe1 Nh7
0:02	1/7	0.50	95384		25.Qd3 Nh7 26.Qc2 Ng5 27.Ra1 Nh3+
					28.Kh2 fxg3+ 29.fxg3 Rf2 30.Rxf2
					Rxf2
0:04	1/8	0.45	206984		25.Qd3 Nh7 26.Rfe1 Ng5 27.Kf1 Nh3
					28.Nd1 fxg3 29.Qxg3 Nxf2 30.Nxf2
					Rxf2+ 31.Qxf2 Rxf2+ 32.Kxf2
0:14	1/9	0.35	825660		25.Qd3 Bh6 26.c5 dxc5 27.Ne2 Rh7
					28.gxf4 Nxf4 29.Nxf4 Bxf4 30.Bxf4
					exf4 31.Rxc5
0:23	1/10	0.33	1470556		25.Qd3 Bh6 26.c5 dxc5 27.Ne2 Qd6
					28.Qc2 Nd7 29.Rfd1 Re8
0:59	2/11	0.05	4081846		25.Qd3 Bh6 26.c5 Rh7 27.c6 Qg7
					28.Rfe1 f3 29.Bf1 Bxd2 30.Qxd2 Qh8
4:18	3/12	0.03	18652385	25.Qd3 Bh6 26.c5 Rh7 27.c6 Qg7
					28.f3 fxg3 29.cxb7 Bxd2 30.Qxd2
					Nf4 31.fxg4 Nxg4
9:16	4/13	-0.26	41611623	25.Qd3 Bh6 26.c5 dxc5 27.Na4 b6
					28.Nc3 Rh7 29.Rfe1 f3 30.Bxh6 Rxh6
					31.Qd2 Qh7
52:14	5/14	-0.22	219290660	25.Qd3 Bh6 26.Ne2 Rh7 27.f3 fxg3
					28.f4 exf4 29.Nxf4 Ne5 30.Qxg3
					Nh5 31.Nxh5 Bxd2 32.Rxf8+ Kxf8

jm



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