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Subject: Re: Testposition for all - except Junior

Author: John Merlino

Date: 09:44:42 09/26/03

Go up one level in this thread


On September 26, 2003 at 12:29:09, Mihaly Szalai wrote:

>I think most of the chess engines will show a positive score
>(i.e. will find 4.h8=B) in this position except Junior. (We talked
>about something similar earlier.)
>
>[D]8/7p/6pP/1B4P1/pp6/1k1K4/8/8 w - - 0 1
>
>1. Be8 a3 2. Bxg6 hxg6 3. h7 a2 4. h8=B!
>
>You should try it with your engine.
>
>Thanks
>Mihaly

It takes Chessmaster 9000, on a P4-2.4, 2:38 to find 4.h8=B:

Time	Depth	Score	Positions	Moves
0:00	3/7	-0.75	10737		1.Be8 a3 2.Bxg6 Kb2 3.Bxh7 a2 4.Kc4
					a1=Q 5.Kxb4
0:00	4/8	0.00	19788		1.Be8 a3 2.Bxg6 hxg6 3.h7 a2 4.h8=Q
					a1=Q 5.Qxa1
0:00	5/9	0.00	45957		1.Be8 a3 2.Bxg6 hxg6 3.h7 a2 4.h8=Q
					a1=Q 5.Qxa1
0:00	6/10	0.00	72363		1.Be8 a3 2.Bxg6 hxg6 3.h7 a2 4.h8=Q
					a1=Q 5.Qxa1
0:00	7/11	0.00	132774		1.Be8 a3 2.Bxg6 hxg6 3.h7 a2 4.h8=Q
					a1=Q 5.Qxa1
0:00	8/12	0.00	244835		1.Be8 a3 2.Bxg6 hxg6 3.h7 a2 4.h8=Q
					a1=Q 5.Qxa1
0:01	9/13	0.00	459719		1.Be8 a3 2.Bxg6 hxg6 3.h7 a2 4.h8=Q
					a1=Q 5.Qxa1
0:03	10/14	0.00	917335		1.Be8 a3 2.Bxg6 hxg6 3.h7 a2 4.h8=Q
					a1=Q 5.Qxa1
0:07	11/15	0.00	1887372		1.Be8 a3 2.Bxg6 hxg6 3.h7 a2 4.h8=Q
					a1=Q 5.Qxa1
0:15	12/16	0.00	4010653		1.Be8 a3 2.Bxg6 hxg6 3.h7 a2 4.h8=Q
					a1=Q 5.Qxa1
0:33	13/17	0.00	8912233		1.Be8 a3 2.Bxg6 hxg6 3.h7 a2 4.h8=Q
					a1=Q 5.Qxa1
2:38	14/18	3.11	37142500	1.Be8 a3 2.Bxg6 hxg6 3.h7 a2 4.h8=B
					Ka3 5.Kc2 b3+ 6.Kc1 Ka4 7.Kb2 Kb4
					8.Bg7 Kc4 9.Ka3 Kd5 10.Kxb3 Ke4
					11.Kxa2 Kf5

jm



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