Author: Christophe Theron
Date: 15:29:21 04/06/99
Go up one level in this thread
On April 06, 1999 at 09:06:33, James Robertson wrote:
>On April 06, 1999 at 02:10:11, Sarah Bird wrote:
>
>>On April 05, 1999 at 14:12:13, James Robertson wrote:
>>
>>>My program just played a game (40 moves in 20 min) against GNUChess (GNUChss was
>>>black), and this position arose:
>>>
>>>1r4r1/2q2p1k/p6p/1pP1P2p/2bP3P/P1p1Q3/2P2RP1/5RK1 w - -
>>>
>>>GNUChess had just played Be6-c4 with a sizeable plus score for black. My program
>>>responded with e6 with an about even score. What do other programs, especially
>>>amateur ones, think about this?
>>>
>>>Thanks,
>>>James
>>>
>>>My program's analysis:
>>>
>>> 1 -133 50 58 Rd1
>>> 2 -133 50 341 Rd1 Qa5
>>> 3 -127 50 3881 e6 Bxe6 Qxc3
>>> 4 -128 160 11304 e6 Bxe6 Qd3+ Kg7 Qxc3
>>> 5 -128 330 27324 e6 Bxe6 Qd3+ Kg7 Qxc3
>>> 6 -78 1100 124186 e6 Bxe6 d5 Qg3 Qxg3 Rxg3 dxe6 fxe6
>>> 7 -78 2360 281522 e6 Bxe6 d5 Qg3 Qxg3 Rxg3 dxe6 fxe6
>>> 8 -78 7410 950243 e6 Bxe6 d5 Qg3 Qxg3 Rxg3 dxe6 fxe6
>>> 9 -9 22190 2760318 e6 Bxe6 d5 Bd7 Rxf7+ Rg7 Qxc3 Rxf7 Rxf7+ Kg6
>>>10 -9 67170 8712177 e6 Bxe6 d5 Bxd5 Qd3+ Kh8 Qxd5 Qe7 Qxh5 Kg7
>>>11 33 216130 27175571 e6 Bxe6 d5 Bxd5 Qd3+ Rg6 Qxd5 f6 Rxf6 Rxf6 Rxf6
>>
>>
>>Fritz 5.32
>>1. e6....Bxe6
>>2. d5....Bxd5
>>3. Qd3+..Kh8
>>4. Qxd5..Rbc8
>>5. Rxf7..Qxc5+
>>+(0.50) depth 15/37 00:25:31 381252kn
>>248kN/s
>>P200
>>UltraB
>
>It is interesting that all the commercial programs and Crafty predicted 3. ...
>Kh8, while Amateur and my program liked worse moves. Are there any amateur
>programs that like 3. ... Kh8?
>
>James
Yes, Chess Tiger 11.8 from ply depth 7 sees (K6-2 300MHz, 8Mb hash):
e6 Bxe6 d5 Bxd5 Qd3+ Kh8 Qxd5 Rbd8 Qxh5 (score=+0.04, time 2.47s)
At deeper depth the first 7 half moves (e6 to Qxd5) never change.
Christophe
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