Author: Robert Hyatt
Date: 11:01:28 01/11/03
Go up one level in this thread
On January 11, 2003 at 12:46:35, Kolss wrote: >On January 11, 2003 at 11:14:10, Robert Hyatt wrote: > >>On January 11, 2003 at 07:43:24, Drexel,Michael wrote: >> >>>[D] 4nnk1/8/6b1/4BP2/2N1B1K1/8/8/8 b - - 0 1 >>> >>>I just came over this endgame position with Crafty 19.01 as analysis engine in >>>CB-GUI. Crafty suggested 1...Bxf5+ with a score of 0.01. >>>1...Bf7 seems to be a simple draw. >>>you probably told him 3 pieces against 2 pieces without pawns is draw, but I >>>doubt this is a good idea in the endgame BBNK vs. NNK. You might be better >>>informed but I would think this endgame is almost always a win and would even >>>assume that it is almost always a win within 50 moves. >>>If I were a tablebase-expert like you, I would fix it immediatly, whether it is >>>important or not. >>> >>> >>>In games against Fritz 8 Crafty will resign in not more than 8 moves: >>> >>>[Event "ATHLONXP"] >>>[Site "ATHLONXP"] >>>[Date "2003.01.5"] >>>[Round "1"] >>>[White "Fritz 8"] >>>[Black "Crafty 19.01"] >>>[Result "1-0"] >>>[SetUp "1"] >>>[FEN "4nnk1/8/6b1/4BP2/2N1B1K1/8/8/8 b - - 0 1"] >>>[PlyCount "14"] >>> >>>1... Bxf5+ 2. Bxf5 Ng7 3. Be4 Nge6 4. Kf5 Kf7 5. Bd5 Ke7 6. Bd6+ Kd7 7. Ke5 >>>Ng6+ 8. Kf6 1-0 >> >>First, Crafty well knows that KBB vs KN is a win. But it isn't seeing that >>here until way deep into the search. In 99.999999999999% of these endgames >>with 3 minors vs 2 minors, the game is a draw. Handling that one special case >>here and there is not going to make it play better, and would almost certainly >>hurt it overall as it really should say KBBN vs KNN is a draw in almost all >>cases. > >I do not agree. IMHO, the stronger side should win in most cases. Especially if >you score all positions as 0.01, you will allow the opponent to make progress, >drive your king into a corner and seperate the knights. > >Regards, Munjong. Do not agree with what? That king + 3 minors vs king + 2 minors is almost always a draw? or that KBBN vs KNN is mostly drawn? I'd be willing to wager that _most_ of the above positions are dead draws. Note that I don't score them as "drawn". I score them as "side with most material can't win" which is different...
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