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Subject: Re: Deep Fritz 7, kns increase test

Author: John Merlino

Date: 22:03:39 08/25/02

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On August 25, 2002 at 20:42:09, K. Burcham wrote:

>
>CCC-4 test position  Rg4
>
>hash set at 432 megs all tests
>
>Deep Fritz 7,  2 x 1533 mhz,  14:10 minutes,     1686 kns
>Deep Fritz 7,  1 x 1533 mhz,  31:05 minutes,      947 kns
>Deep Fritz 6,  2 x 1533 mhz,  not found,         1290 kns
>Deep Fritz 6,  1 x 1533 mhz,  did not find,      1160 kns
>
>
> [D] 8/4K2p/6pr/5pk1/1pB2R2/p4PP1/8/8 w - - 0 1

Chessmaster 9000, on a humble PIII-733, finds Rg4+ in 30 seconds. However, it
does not see that it is winning after five minutes, and it appears that CM9000
would need to get to about depth 18 or 19 to see the win:

Time	Depth	Score	Positions	Moves
0:00	1/6	-0.91	17550		1.Bd5 b3 2.Bxb3 Rh3 3.Ra4 Rxg3
0:00	2/7	-1.02	33219		1.Bd5 b3 2.Bxb3 Rh3 3.Ra4 Rxg3
					4.Bd5
0:01	3/8	-0.68	97813		1.Bd5 b3 2.Bxb3 Rh3 3.Ra4 Rxg3
					4.Bd5 h5 5.Rxa3
0:02	4/9	-0.68	243493		1.Bd5 b3 2.Bxb3 Rh3 3.Ra4 Rxg3
					4.Bd5 h5 5.Rxa3
0:08	5/10	-0.44	837489		1.Bd5 b3 2.Bxb3 Rh3 3.Ra4 Rxg3
					4.Bd5 h5 5.Rxa3 Rg1 6.Ra4
0:19	6/11	-0.47	2117898		1.Bd5 b3 2.Bxb3 Rh3 3.Ra4 Rxg3
					4.Bd5 h5 5.Rxa3 Rg1 6.Kd6
0:30	6/11	0.27	3547695		1.Rg4+ fxg4 2.f4+ Kh5 3.Bf7 b3
					4.Bxb3 g5 5.Bf7+ Rg6 6.f5 Kh6 7.fxg6
					hxg6 8.Kf6 Kh5 9.Bxg6+ Kh6
0:34	7/12	0.00	4080860		1.Rg4+ fxg4 2.f4+ Kh5 3.Bf7 b3
					4.Bxb3 g5 5.Bf7+ Rg6 6.f5 a2 7.fxg6
					a1=Q 8.g7+ Kh6 9.g8=Q Qf6+ 10.Kf8
					Qe7+ 11.Kxe7
1:20	8/13	0.00	10095261	1.Rg4+ fxg4 2.f4+ Kh5 3.Bf7 b3
					4.Bxb3 g5 5.Bf7+ Rg6 6.f5 a2 7.fxg6
					a1=Q 8.g7+ Kh6 9.g8=Q Qf6+ 10.Kf8
					Qe7+ 11.Kxe7
3:50	9/14	0.00	26956945	1.Rg4+ fxg4 2.f4+ Kh5 3.Bf7 b3
					4.Bxb3 g5 5.Bf7+ Rg6 6.f5 a2 7.fxg6
					a1=Q 8.g7+ Kh6 9.g8=Q Qf6+ 10.Kxf6

jm



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