Author: stuart taylor
Date: 18:35:49 06/24/02
Go up one level in this thread
On June 24, 2002 at 17:35:07, Uri Blass wrote: >On June 24, 2002 at 11:24:37, stuart taylor wrote: > >> >>> >>>=============================== >>> >>>[d]r1b5/p2k1r1p/3P2pP/1ppR4/2P2p2/2P5/P1B4P/4R1K1 w - - bm Bxg6; >>>Rebel Century 4 : 38 seconds (11 ply) >>>Rebel XP beta 1.01 : 21 seconds (11 ply) >>> >> >>I like this position quite alot, because it's so easy (I mean tangible) for a >>reasonably intelligent human to see clearly. >>This is an example of a position which I always wanted to know if anyone of >>2200 elo would ever miss. >>Although I havn't seen it on a computer, so I may well be wrong, I still think >>it is clear after ...Bxg6 (2) PXB R-7 check (3) RXR PXR (4)KXP What's the next >>move? Yes >> >> >> >> >> >> >> >> >> >> >> >> >> >> >> >> >> >> >>4...Re8. Etc. >>From the point before B-g6 I'd be interested to know how many at 1800elo would >>not find it easily in a game. > >The problem is not to find these moves but if these moves are better than the >alternative. > >White is losing a rook and bishop for promoting the pawn to queen and there are >other deals. > >I did not analyze it to find if the move is the best but movei does not find >this line because it prefers other moves and the problem is not seeing Re8 and >the previous moves. > >I believe that it should have no problem to find the moves if it use a bigger >value for the queen(I will check it tomorrow) > >>Anyway, for computers it must be slightly more difficult than for humans. It >>involves human logic. >>S.Taylor > >I do not think that it involves logic that is special for humans. > >Uri Uri you are quite right about a lovely combination achieving nothing more than a litle acrobatic trick, whist the result is about the same as it would anyway have been, or even worse, or only very slight better, according to some opinions. Please let us know about Movei with different eval. of queen. I see this position as almost pure logic for a human. Not much to calculate, but just to follow through a little. S.Taylor
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