Author: Bernhard Bauer
Date: 05:33:53 03/15/02
Go up one level in this thread
On March 15, 2002 at 08:20:47, Bradley Woodward wrote: >On March 15, 2002 at 06:56:15, Ed Schröder wrote: > >>The yearly Aufsess tournament in Germany has started again, when replaying >>Rebel's game against Fritz in round-2 I came accross the below position: >> >>[d]8/8/6R1/1nB1K3/k7/7p/1P4bP/8 w - - 0 1 >> >>White has a clear win but has troubles to give black the final knock, then the >>surprising 64.Rxg2! follows, game over. How long do other programs need? Rebel >>needs 2:15, that can be much shorter, or? > >G'day Ed. > >On my P4 1.7Ghz, Crafty finds it at ply 15, with a 96MB hash. > > 15 2:07 ++ 1. Rxg2!! > 15 2:12 7.60 1. Rxg2 hxg2 2. h4 Kb3 3. h5 Kc4 4. > Bg1 Kd3 5. h6 Ke2 6. h7 Kf1 7. Bb6 > g1=Q 8. Bxg1 Nc7 9. h8=Q Kxg1 > > Which version did you use? Crafty 18.13 needs 85 sec on a 2xP3-450. 14-> 54.27 5.78 1. Rg4+ Ka5 2. b3 Nc7 3. Rc4 Bf1 4. Rc3 Bg2 5. Be7 Nb5 6. b4+ Kb6 7. Bc5+ Kb7 8. Rd3 Kc6 15 1:15 5.78 1. Rg4+ Ka5 2. b3 Nc7 3. Rc4 Bf1 4. Rc3 Bg2 5. Be7 Nb5 6. Rc2 Ka6 7. Bc5 Kb7 8. b4 Bf3 15 1:25 ++ 1. Rxg2!! (4) 15-> 1:29 6.17 1. Rxg2 16 1:33 ++ 1. Rxg2!! (3) 16 1:39 7.62 1. Rxg2 hxg2 2. h4 Kb3 3. h5 Kc4 4. Bb6 Nc7 5. Bg1 Kd3 6. h6 Ke2 7. h7 Kf1 8. Ba7 g1=Q 9. Bxg1 Kxg1 10. h8=Q (2) 16-> 1:50 7.62 1. Rxg2 hxg2 2. h4 Kb3 3. h5 Kc4 4. Bb6 Nc7 5. Bg1 Kd3 6. h6 Ke2 7. h7 Kf1 8. Ba7 g1=Q 9. Bxg1 Kxg1 10. h8=Q 17 1:55 ++ 1. Rxg2!! 17 2:24 8.79 1. Rxg2 hxg2 2. h4 Kb3 3. h5 Kc4 4. Bb6 Nc7 5. b3+ Kxb3 6. h6 Nb5 7. h7 Na3 8. Bg1 Nc4+ 9. Kf6 Kc2 10. Kg5 Kd3 11. h8=Q Kind regards Bernhard
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