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Subject: Re: Hard endgame position

Author: Mihaly Szalai

Date: 11:30:43 05/02/05

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On May 02, 2005 at 12:09:41, John Merlino wrote:

>On May 02, 2005 at 10:11:41, Mihaly Szalai wrote:
>
>>[D]8/2p1k3/3p3p/2PP1pp1/1P1K1P2/6P1/8/8 w - -
>>
>>1. g4! fxg4 (1... gxf4 2. gxf5) 2. f5! dxc5+
>>(2... Kf6 3. cxd6 cxd6 4. b5 )
>>(2... g3 3. Ke3 g4 4. c6 h5 5. b5 h4 6. Ke2!)
>>(2... h5 3. Ke3 h4 (3... g3 4. cxd6+ Kxd6 5. f6) 4. Kf2)
>>3. bxc5 g3 4. Ke3 g4 5. c6!
>>(5. d6+? cxd6 6. c6 d5=) 5... h5 6. f6+ Kxf6 7. d6.
>
>It takes a while, but CMX_R1 on a P4-2.4 eventually finds it:
>
>Time	Depth	Score	Positions	Moves
>0:00	5/9	0.28	34148		1.fxg5 hxg5 2.Ke3 Kd7 3.c6+ Kd8
>					4.b5 Ke7 5.Kf3 Kd8 6.g4
>0:00	6/10	0.24	69081		1.fxg5 hxg5 2.Ke3 Kd7 3.c6+ Kd8
>					4.b5 Ke8 5.Kd4 Kd8 6.Kd3 Ke7
>0:00	6/10	0.34	83727		1.Ke3 Kd7 2.c6+ Kd8 3.b5 Ke8 4.Kd4
>					gxf4 5.gxf4 h5 6.b6 cxb6
>0:00	7/11	0.45	126946		1.Ke3 Kd7 2.c6+ Kd8 3.b5 Ke8 4.fxg5
>					hxg5 5.Kd4 Ke7 6.Kd3 Ke8 7.Ke3
>0:00	8/12	0.24	241150		1.Ke3 Kd7 2.c6+ Kd8 3.b5 Ke8 4.fxg5
>					hxg5 5.Kd2 f4 6.gxf4 gxf4 7.Ke2
>					Ke7 8.Kf3
>0:01	9/13	0.37	435418		1.Ke3 Kd7 2.c6+ Kd8 3.b5 Ke8 4.fxg5
>					hxg5 5.Kd2 Ke7 6.Kd3 Ke8 7.Ke3
>					Ke7 8.Kd4
>0:02	10/14	0.41	901098		1.Ke3 Kd7 2.c6+ Kd8 3.b5 Ke8 4.Kf3
>					Ke7 5.g4 fxg4+ 6.Kxg4 gxf4 7.Kxf4
>					Kd8 8.Kf3 h5 9.Ke4
>0:05	11/15	0.62	1870730		1.Ke3 Kd7 2.c6+ Kd8 3.Kf2 Ke7 4.Kf3
>					Kf6 5.b5 g4+ 6.Kf2 Ke7 7.Ke3 h5
>					8.Kd4 Ke8 9.Kd3
>0:11	12/16	0.49	3908432		1.Ke3 Kd8 2.Kf2 gxf4 3.gxf4 Kc8
>					4.cxd6 cxd6 5.Kg3 Kb7 6.Kh4 Kb6
>					7.Kh5 Kb5 8.Kg6 Kxb4 9.Kxf5 h5
>0:20	13/17	0.35	6861890		1.Ke3 Kd7 2.c6+ Kc8 3.g4 gxf4+
>					4.Kxf4 fxg4 5.Kxg4 Kb8 6.Kh5 Ka7
>					7.Kxh6 Kb6 8.Kg5 Kb5 9.Kf4 Kxb4
>					10.Ke4 Kc5
>1:08	14/18	0.00	19853900	1.Ke3 c6 2.fxg5 hxg5 3.dxc6 dxc5
>					4.bxc5 Kd8 5.Kd4 Kc7 6.Kd5 f4 7.gxf4
>					gxf4 8.Kd4 Kxc6 9.Ke4 Kxc5 10.Kxf4
>4:26	14/18	1.29	62210548	1.g4 fxg4 2.f5 h5 3.cxd6+ Kxd6
>					4.f6 g3 5.Ke3 h4 6.Kf3 Kd7 7.f7
>					Ke7 8.d6+ cxd6 9.b5 g4+ 10.Kg2
>					Kxf7 11.b6 Ke6
>
>jm

Hi John,

you may find interesting the output of The King 3.32 from Chessmaster Challenge.

Mihaly

The King 3.32 (Arena GUI, P4 3 GHz, 256 MB)

  3003	00:00	         228	228	+0,33	c6 gxf4 gxf4 h5
  3003	00:00	         382	382	+0,42	Ke3 Kd7 Kd3
  4003	00:00	         897	897	+0,50	Ke3 Kd7 c6+ Ke7 Kd4
  5003	00:00	       2.074	2.074	+0,48	Ke3 Kd7 c6+ Ke7 Kd4 Kf6
  6004	00:00	       4.634	463.400	+0,43	Ke3 dxc5 bxc5 Kd7 Kd4 gxf4 gxf4 h5
  7005	00:00	       9.921	330.700	+0,40	Ke3 dxc5 bxc5 Kf6 fxg5+ hxg5 d6 cxd6
cxd6 Ke6
  8006	00:00	      22.832	285.400	+0,33	Ke3 dxc5 bxc5 Kd7 Kf3 Ke7 g4 fxg4+ Kxg4
Kf6 fxg5+ hxg5
  8006	00:00	      29.657	329.522	+0,43	fxg5 hxg5 c6 Kf6 b5 Ke7 Ke3 Kf6 b6
  9007	00:00	      54.379	319.876	+0,30	fxg5 hxg5 c6 Kf6 b5 Ke7 Ke3 Kd8 Kd3 Ke7
  9007	00:00	      68.185	340.925	+0,44	Ke3 dxc5 bxc5 Kd7 fxg5 hxg5 Kd4 f4 gxf4
gxf4 Ke4 c6
  10008	00:00	     110.634	356.883	+0,30	Ke3 dxc5 bxc5 Kf6 fxg5+ hxg5 Kd4 f4
gxf4 gxf4 Ke4 Kg5 Kf3
  11009	00:00	     233.179	364.342	+0,30	Ke3 Kd7 c6+ Ke7 b5 Kd8 fxg5 hxg5 Kf2
Ke8 Ke2 Ke7 Ke3
  12010	00:00	     420.475	368.837	+0,30	Ke3 Kd7 c6+ Ke7 b5 Kd8 fxg5 hxg5 Kd4
Ke8 Kc3 f4 gxf4 gxf4 Kd4
  13011	00:01	     805.006	385.170	+0,33	Ke3 dxc5 bxc5 Kf6 Kf3 Kf7 g4 Kf6 d6
cxd6 c6 fxg4+ Kxg4 Ke6 fxg5 hxg5 Kxg5
  14012	00:03	   1.493.003	401.344	+0,35	Ke3 Kd8 c6 Ke7 b5 Kd8 Kf3 Ke8 g4 fxg4+
Kxg4 gxf4 Kxf4 Ke7 Ke4 h5
  15013	00:07	   3.063.839	411.253	+0,42	Ke3 Kd8 c6 g4 Kd4 Kc8 b5 Kb8 Kd3 Ka7
Kc4 Kb6 Kb4 h5 Kc4
  16014	00:14	   5.522.634	375.689	+0,39	Ke3 Kd8 c6 g4 Kd4 Kc8 Kd3 Kb8 Ke3 Ka7
Kd4 h5 Ke3 Kb6 Kd3 Kb5
  17015	00:34	  11.629.631	337.580	+0,22	Ke3 Kd8 c6 g4 Kd4 Kc8 Kd3 Kb8 Ke3 Ka7
Kd4 h5 Kd3 Kb6 Kd2 Kb5 Kc3
  17015	01:31	  25.872.270	284.310	+0,60	g4 fxg4 f5 h5 Ke3 g3 cxd6+ Kxd6 f6 Kd7
Kf3 Ke8 d6 c5 bxc5 h4 c6 Kd8
  18016	04:43	  72.514.641	256.235	+1,39	g4 fxg4 f5 h5 Ke3 h4 cxd6+ Kxd6 f6 Kd7
b5 h3 Kf2 Ke8 d6 h2 dxc7 h1Q c8Q+ Kf7 Qxg4 Kxf6 b6




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