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Subject: Re: Yet another SEE test

Author: James Swafford

Date: 07:17:01 09/20/04

Go up one level in this thread


On September 19, 2004 at 23:47:24, Michael Henderson wrote:

>On September 19, 2004 at 23:30:43, James Swafford wrote:
>
>>Someone recently posted that they verify their SEE with a
>>search (generating only moves to the target square).
>>I did that,and seems I caught one. :)
>>
>>See position below... does your SEE see the promotion?
>>
>>
>>
>>Problem 1:
>>8/7p/5k2/5p2/p1p2P2/Pr1pPK2/1P1R3P/8 b - - b3b2;
>>
>>parsing: b3b2...done.
>>correct move(s): b3b2
>>gamestage: 3
>>search time=10000
>>FW Dpth   Nd Cnt    CSecs  Score PV Line
>> 4& ->      1495        0     30 h7h5 h2h4 c4c3 b2c3 b3c3
>>*** val=-400 (currval=-400; sv=-800); see=400
>>
>>- - - - - - - -
>>- - - - - - - p
>>- - - - - k - -      white to move
>>- - - - - p - -      no ep
>>p - - - - P - -      no castling rights
>>P - - - P K - P
>>- - p - - - - -
>>- - - q - - - R
>>
>>move h1d1
>>
>>--
>>James
>
>My SEE does not see promotions, so i get +400 SEE also.  There are a large
>number of positions where SEE messes up...that you probably know. e.g Bxd5 isn't
>really +300, unless you detect pins to the king.
>
>[D]7k/2n3r1/8/3b4/8/5B2/6Q1/6K1 w - - 0 1


My SEE says +310, though I do (or thought I did) detect
pins.  My search verification says 0, though, so at
least my debug code works. :-/

--
James




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