Computer Chess Club Archives


Search

Terms

Messages

Subject: Re: Test Position:Queen endings [spike after 13 depths]

Author: Uri Blass

Date: 07:27:31 09/07/05

Go up one level in this thread


On September 07, 2005 at 10:14:38, Christian Koch wrote:

>On September 07, 2005 at 09:52:06, Uri Blass wrote:
>
>>On September 07, 2005 at 09:05:49, Ignacio Santos Crespo wrote:
>>
>>>On September 07, 2005 at 05:25:27, Madhavan wrote:
>>>
>>>>[D] 8/6k1/8/3pKQpP/3p4/8/8/3q4 w - - 0 1
>>>>
>>>>White to play and win.
>>>>
>>>>FEN: 8/6k1/8/3pK1QP/3p4/8/8/3q4 b - - 0 1
>>>>
>>>Chest 4.2 needs 1 second for the mate in 16:
>>>8/6k1/8/3pKQpP/3p4/8/8/3q4 w - - bm #16; 00:01 @ C0/R-12/K4/P4/X19;
>>>
>>>FEN: 8/6k1/8/3pKQpP/3p4/8/8/3q4 w - - 0 1
>>>
>>>ChestUCI Ver.4.2:
>>>CPU: AMD64 3200+
>>>FEN: 8/6k1/8/3pKQpP/3p4/8/8/3q4 w - -
>>>Search for 1. Special-Mate [C0/R-12/K4/P4/X19] in 16 ...  (Hash=412MB)
>>>  16	00:03	     198.719	553.534	+M16	h5h6+
>>>Search completed ...  (Time=1.98s)
>>>Mate in 16 found !  (1. Solution in 00:01)
>>> 16/16	00:03	   1.146.948	578.098	+M16	h5h6+ Rg7xh6 Re5f6 Dd1h5 Df5d3 Dh5e8
>>>Dd3h3
>>
>>For comparison shredder9's analysis at move 8
>>Shredder is uncapble of getting depth 5 even after a long time.
>>
>>
>>New game, 38'/40+38'/40+38'/40
>>8/8/5K1k/3p2pq/8/7Q/8/8 w - - 0 1
>>
>>Analysis by Shredder 9 UCI:
>>
>>8.Qxh5+
>>  -+  (-5.17)   Depth: 1/2   00:00:00
>>8.Qxh5+
>>  -+  (-5.17)   Depth: 1/2   00:00:00
>>8.Qg2
>>  -+  (-3.15)   Depth: 1/3   00:00:00
>>8.Qg2
>>  -+  (-3.15)   Depth: 1/3   00:00:00
>>8.Qg2
>>  =  (-0.01)   Depth: 2/3   00:00:00
>>8.Qg2 Qd1
>>  =  (-0.01)   Depth: 2/3   00:00:00
>>8.Qg2 Qd1
>>  =  (-0.01)   Depth: 3/3   00:00:00
>>8.Qg2 Qd1
>>  =  (-0.01)   Depth: 4/4   00:00:00
>>
>>(,  07.09.2005)
>>
>>Uri
>
>
>Strange behaviour from your Shredder:
>
>Here Shreder 9 undere Arena 1.1
>FEN: 8/8/5K1k/3p2pq/8/7Q/8/8 w - - 0 1
>
>Shredder 9.1 UCI:
>  1/1-	00:00	           0	0	-M15	Qh3xh5+
>  1/1	00:00	           0	0	-M15	Qh3xh5+
>  1/1+	00:00	           1	66	-M16	Kf6e5
>  1/3	00:00	           4	266	-14,24	Kf6e5 Qh5xh3 Ke5xd5
>  1/3+	00:00	          21	1.400	-3,15	Qh3g2
>  1/3	00:00	          22	1.466	-3,15	Qh3g2
>  2/5	00:00	          62	2.000	-3,07	Qh3g2 d5d4
>  2/5+	00:00	          84	2.709	-3,06	Qh3d3
>  2/5	00:00	         102	3.290	-2,82	Qh3d3 g5g4
>  3/6	00:00	         207	4.404	-2,81	Qh3d3 g5g4 Qd3e3+ Kh6h7
>  4/8	00:00	         731	15.553	-2,95	Qh3d3 d5d4 Qd3e4 d4d3
>  4/11+	00:00	       1.031	21.936	-2,94	Qh3f5
>  4/11	00:00	       1.088	23.148	-2,94	Qh3f5 d5d4 Kf6e5 g5g4
>  5/11	00:00	       1.524	24.580	-2,70	Qh3f5 d5d4 Qf5d3 Qh5e8 Kf6f5
>  5/11+	00:00	       1.630	26.290	-2,69	Qh3d3
>  5/11+	00:00	       1.986	15.888	-1,00	Qh3d3
>  5/11	00:00	       2.038	16.304	-1,00	Qh3d3 d5d4 Qd3e4 g5g4 Qe4f4+
>  6/11	00:00	       2.856	18.307	-1,00	Qh3d3 d5d4 Qd3e4 g5g4 Qe4f4+ Kh6h7 Qf4xd4
>  7/10+	00:00	       4.334	19.880	-0,01	Qh3d3 d5d4
>  7/13	00:00	       4.863	22.307	+0,01	Qh3d3 Qh5e8 Qd3h3+ Qe8h5
>  7/13+	00:00	       5.374	22.965	+8,41	Qh3f5
>  7/13	00:00	       5.560	23.760	+8,41	Qh3f5 d5d4 Qf5e4 g5g4 Qe4f4+ Kh6h7 Qf4c7+
>Qh5f7+ Kf6xf7
>  8/12+	00:00	       6.111	24.444	+8,68	Qh3f5 d5d4
>  8/12+	00:00	       6.212	24.848	+9,27	Qh3f5 d5d4
>  8/13	00:00	       7.416	27.984	+M9	Qh3f5 d5d4 Qf5e4 d4d3 Qe4xd3
>  9/14	00:00	       9.509	33.839	+M9	Qh3f5 d5d4 Qf5e4 d4d3 Qe4xd3
> 10/17	00:00	      13.225	42.387	+M9	Qh3f5 d5d4 Qf5e4 d4d3 Qe4xd3
> 11/17	00:00	      19.722	52.592	+M9	Qh3f5 d5d4 Qf5e4 d4d3 Qe4xd3
> 12/20	00:00	      31.196	68.865	+M9	Qh3f5 d5d4 Qf5e4 d4d3 Qe4xd3
> 13/20	00:00	      45.429	78.596	+M9	Qh3f5 d5d4 Qf5e4 d4d3 Qe4xd3
> 14/24	00:01	      77.842	75.501	+M9	Qh3f5 d5d4 Qf5e4 d4d3 Qe4xd3
> 15/26	00:01	     124.517	73.116	+M9	Qh3f5 d5d4 Qf5e4 d4d3 Qe4xd3
> 16/28	00:02	     218.817	93.391	+M9	Qh3f5 d5d4 Qf5e4 d4d3 Qe4xd3
> 17/27	00:03	     342.438	100.069	+M9	Qh3f5 d5d4 Qf5e4 d4d3 Qe4xd3
>
>best regards,
>Christian

I checked it and this behaviour is only under chessbase gui.
Under shredder gui shredder has no problem.

Uri



This page took 0 seconds to execute

Last modified: Thu, 15 Apr 21 08:11:13 -0700

Current Computer Chess Club Forums at Talkchess. This site by Sean Mintz.