Author: Dann Corbit
Date: 15:50:19 10/18/05
Go up one level in this thread
On October 18, 2005 at 18:30:21, chandler yergin wrote: >On October 18, 2005 at 17:47:51, Uri Blass wrote: > >>On October 18, 2005 at 17:12:05, Robert Hollay wrote: >> >>> I apologize if this question sounds odd. >>> But if it's true that chess game has a SOLUTION - the perfect chess game - >>>then it should be logical that the top chess engines tends to that perfection. >>>In other words, they will more and more often find THE BEST move in any >>>position. >> >>There is often more than one best move. > >Sounds like an Oxymoron to me.. [D]3b1qk1/r5rR/6Q1/pppPp1p1/4P1N1/1PP3P1/1P3PK1/7R w - - acd 4; acn 2; acs 0; bm Nh6# Rh8#; ce 32766; dm 1; id "C.A.P. 811930"; pv Nh6#; >>> If so, then their playing styles become more and more monotonous and are >>>gradually moving to a uniformity. >> >>No because there is often more than one best move. > >Another oxymoron See above. It is not uncommon at all. These are from the 1924 NY Chess Club match. See also: [D]8/8/8/8/1K3k2/1p4r1/1N6/8 b - - acd 19; ce 401; pv Ke4 Kc4 Re3 Na4 Kf4 Nb2 Rf3 Na4 Ke5 Nb2 Ke4 Na4 Kf4 Nb2 Re3 Kd5 Rc3 Kd6 Rf3; pm Ke4; bm Ke4; id "ECE3.0447"; [D]3b1q1k/r4r1p/7R/pppPpQp1/4P1N1/1PP3P1/1P3PK1/7R w - - acd 4; acn 740; acs 0; bm Rxh7+; ce 32762; dm 3; id "C.A.P. 811926"; pv Rxh7+ Kg8 Rh8+ Kg7 R1h7#; [D]1k6/1P6/K7/8/P7/2P5/8/8 w - - acd 9; acn 1034866; acs 25; bm a5 c4; ce 32748; dm 10; id "C.A.P. 805301"; pv c4 Kc7 Ka7 Kd7 c5 Ke7 c6 Kf7 c7 Kg7 c8=Q Kf7 Qd7+ Kf6 b8=Q Kg6 Qg8+ Kh6 Qdh7#; >>> Weak engines have very different styles, often very aggressive, so they are >>>great for weak players to play against. But newer - and stronger - versions of >>>these same engines are playing in a much more cautious style (see Golem). >>>Similarly, strong engines have "personalities" to make their playing style more >>>interesting, but the default personality is usually the strongest. >> >>No >> >>The default version is usually not the strongest because programmers cannot tune >>every parameter to be the best because they may need thousands of games for >>that. >> >>The pawn value in the default personality may be 100 >>It is possible to increase the default value to 101 or to reduce it to 99 >> >>In most cases one of this options is going to be at least 0.1 elo stronger than >>the default personality because programmers have not enough time to play more >>than 1,000,000 of games to detect difference of 0.1 elo. >> >>Same for other default values. >> >>Uri
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