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Subject: Re: Crafty don't find a winning move !!

Author: Dave Gomboc

Date: 21:56:32 02/02/00

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On February 02, 2000 at 11:29:31, Vincent Diepeveen wrote:

>On February 02, 2000 at 02:16:12, Côme wrote:
>
>>On February 01, 2000 at 20:43:39, Vincent Diepeveen wrote:
>>
>>>On February 01, 2000 at 16:15:20, Côme wrote:
>>>
>>>>On February 01, 2000 at 14:34:37, Dann Corbit wrote:
>>>>
>>>>>On February 01, 2000 at 11:43:54, Côme wrote:
>>>>>
>>>>>>
>>>>>>In this position :
>>>>>>[D]r2qkb1r/pp1n1ppp/4n3/1B6/Q7/2N2P2/PP3P1P/R1B1K2R w KQkq - 0 1
>>>
>>>00:00 6 (0) 1 -0.19 Bb5xd7 Qd8xd7 Qa4xd7 Ke8xd7
>>>00:00 8 (0) 1 0.46 O-O
>>>00:00 112 (0) 2 0.07 O-O Bf8-d6
>>>00:00 597 (0) 3 0.35 O-O a7-a6 Bb5-d3
>>>00:00 1942 (0) 4 0.20 O-O a7-a6 Bb5xd7 Qd8xd7 Qa4xd7 Ke8xd7 Bc1-e3
>>>++ c1-e3
>>>00:00 4093 (0) 4 0.23 Bc1-e3 Ne6-c5 Qa4-d4 a7-a6
>>>00:01 11444 (540) 5 0.29 Bc1-e3 a7-a6 Bb5xd7 Qd8xd7 Qa4xd7 Ke8xd7 Ke1-e2
>>>00:03 34299 (1070) 6 0.02 Bc1-e3 a7-a6 Bb5xd7 Qd8xd7 Qa4xd7 Ke8xd7 O-O-O Bf8-d6
>>>++ c1-f4
>>>00:05 101207 (5754) 6 0.14 Bc1-f4 Ne6-c5 Qa4-c4 a7-a6 Bb5xd7 Qd8xd7 O-O
>>>00:07 179795 (6376) 7 -0.11 Bc1-f4 a7-a6 Bb5-e2 Ne6xf4 Qa4xf4 Qd8-b6 Be2-c4
>>>++ c1-e3
>>>00:08 211403 (8694) 7 0.07 Bc1-e3 a7-a6 Bb5-d3 Ne6-c5 Be3xc5 Bf8xc5 O-O
>>>++ e1-g1
>>>00:09 242393 (15721) 7 0.15 O-O a7-a6 Bb5-d3 Bf8-e7 Rf1-d1 Ne6-c5 Qa4-g4 Nc5xd3
>>>Rd1xd3
>>>++ c1-g5
>>>00:12 358864 (21763) 7 1.01 Bc1-g5 Bf8-e7 Bg5xe7 Qd8xe7 O-O-O Ra8-d8 Qa4xa7
>>>00:16 492023 (41491) 8 0.54 Bc1-g5 Ne6-c5 Bg5xd8 Nc5xa4 O-O-O Ra8xd8 Rh1-e1 Bf8-
>>>e7 Bb5xa4
>>>00:24 873401 (45658) 9 0.38 Bc1-g5 Ne6-c5 Bg5xd8 Nc5xa4 O-O-O Ra8xd8 Rh1-e1 Bf8-
>>>e7 Bb5xa4 g7-g5
>>>01:06 2527768 (92156) 10 1.18 Bc1-g5 Bf8-e7 Ra1-d1 Ne6-c5 Qa4-d4 f7-f6 Bg5-e3 a7
>>>-a6 Bb5-c4 b7-b5
>>>02:05 5006663 (399125) 11 1.26 Bc1-g5 Bf8-e7 Ra1-d1 Ne6-c5 Qa4-d4 f7-f6 Bg5-f4 a
>>>7-a6 Bb5-c4 Nd7-b6 Qd4-e3 Qd8-c8
>
>>>>>
>>>>>>After 8 min on my K6 II 350  Crafty 17.07 don't find Bg5!!
>>>>>>
>>>>>>Junior and Fritz find Bg5!! very quickly.
>>>>>
>>>>>What were the evals of the programs that found it?
>>>>>
>>>>>I am wondering if they really saw a win, or made (instead) a positional choice.
>>>>>
>>>>>Since the tactical payoff is 6 full-moves deep, it seems unlikely that most
>>>>>programs will find the tactical reason quickly.
>>>>
>>>>
>>>>
>>>>Hello Dann,
>>>>After some minutes the eval of Junior 6 is more than +1 on my K6 II 350.
>>>>In human point of vue Bg5!! is winning but it is may be true than programs
>>>>choose it but not for the right reasons.
>>>>Best Regards
>>>>Alexandre Côme
>>
>>
>>Hello Vincent,
>>Good eval but Diep don't find the strongest line!
>
>Oh it did make the right move with the right score,
>so what do you care? What is strongest
>for mankind isn't best for computer usually

Besides which, Diep's PV on ply 8 is great.  (But why is the score so low?)

Dave



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