Author: José de Jesús García Ruvalcaba
Date: 08:05:04 07/31/01
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On July 31, 2001 at 01:05:53, Bruce Moreland wrote: >[D] 8/4ppbk/p5pp/3pP3/3B4/5P1P/PP3P2/6K1 b - - 0 1 > >My thing got smashed by Ulf Andersson in this position. It wants to play ... g5 >and sticks with it for a long time on a P3/550, like something over a minute, >and it didn't have near enough time to avoid getting creamed. > >I'm pretty sure that ... g5 is dead lost. I'm less sure about ... h5 or ... e6. > 1... h5 looks lost to me after 2. b4 Bh6 3. a4 Bd2 4. b5 ab5 5. ab5 Ba5 6. b6 followed by b7 and Ba7. Also lost looks 2... e6 3. a4 Bf8 4. b5 ab5 5. ab5 Be7 6. b6 again followed by b7 and Ba7. I think black has no time to lose and should play e6 (1... Bf8 2. e6!) immediately in order to stop the b-pawn. 1... g5 is completely illogical, at least from my point of view. Black's passed pawn at d5 is not dangerous as long as it is safely blocked by the white bishop, which can be quite long since the black king is very far. José. >A recent Yace switches away in about 12 seconds on one processor of my quad Xeon >450, and Crafty 18.10 takes 22 seconds to shift away. I'm surprised about >Crafty since I'd thought that it should do better given its knowledge of >majorities. > >Anyone have any other insights? If you would like to tell how fast another >program shifts away from ... g5, please include hardware. > >bruce
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