Author: Uri Blass
Date: 12:41:19 12/31/03
Go up one level in this thread
On December 31, 2003 at 14:17:48, Steven Edwards wrote:
>On December 31, 2003 at 14:06:59, Uri Blass wrote:
>
>>This can be solved easily by extending every stupid check that is not first
>>check by almost 2 plies.
>
>http://dictionary.reference.com/search?q=ad+hoc&db=*
with normal extensions latest beta version of movei needs almost 1/2 minute on
A1000 to see mate in 15 and needs 9 plies(see the game beloiw for the line).
Note that I expect strong humans not to play Qh5+ because it is a practical
mistake to start to calculate a long line when there is a simple winning
move(exf6 in this case) because the target is not to win as fast as possible and
it is better to be 99% sure of winning and not 98% even if you win faster and
humans should give at least 2% chance that they miss something if they calculate
a long line in OTB game.
Uri
[Event "Edited position"]
[Site "URI-PC"]
[Date "2003.12.31"]
[Round "-"]
[White "-"]
[Black "-"]
[Result "1-0"]
[FEN "2qrr1n1/3b1kp1/2pBpn1p/1p2PP2/p2P4/1BP5/P3Q1PP/4RRK1 w - - 0 1"]
[SetUp "1"]
{--------------
. . q r r . n .
. . . b . k p .
. . p B p n . p
. p . . P P . .
p . . P . . . .
. B P . . . . .
P . . . Q . P P
. . . . R R K .
white to play
--------------}
1. Qh5+ Nxh5 2. fxe6+ Kg6 3. Bc2+ Kg5 4. Rf5+ Kg6 5. Rf6+ Kg5 6. h4+ Kxh4
7. Re4+ Nf4 8. Rexf4+ Kh5 9. Bd1+ Kg5 10. Rg4+ Kh5 11. Rxg7+ Kh4 12. g3+
Kh3 13. Bg4+ Kxg3 14. Rf3+ Kh4 15. Rh3#
{Movei->White mates} 1-0
Uri
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