Author: Robert Hyatt
Date: 19:25:18 02/06/03
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On February 06, 2003 at 16:57:29, Jon Dart wrote: >Here's a position that occurred in a recent offline test game: > >{D] 8/6r1/p7/1p6/3kBn1P/P2p1P2/1P6/3R1K2 b - - > >Ke3 is winning here, but Arasan 6.3 doesn't get this, in fact it wants to play >Rg8. It is apparently a null move issue. If I turn off null moves, or restrict >the null move in the case where the opponent has an advanced passer, then it is >solved quickly. > >--Jon It takes my PIII/750 laptop 23 seconds to find Ke3: Ne2 5. Kg2 Rxh6 6. Bf5 Rh5 7. Be4 12 12.89 -1.96 1. ... Rg3 2. a4 bxa4 3. h5 Rh3 4. Kf2 Rxh5 5. Ra1 a3 6. bxa3 Nh3+ 7. Ke1 Ke3 12 23.57 ++ 1. ... Ke3!! 12 35.34 -3.28 1. ... Ke3 2. h5 d2 3. h6 Rg3 4. Rxd2 Kxd2 5. Kf2 Rg2+ 6. Kf1 Rh2 7. h7 Ne2 8. b4 <HT> 12-> 35.48 -3.28 1. ... Ke3 2. h5 d2 3. h6 Rg3 4. Rxd2 Kxd2 5. Kf2 Rg2+ 6. Kf1 Rh2 7. h7 Ne2 8. b4 <HT> 13 44.73 ++ 1. ... Ke3!! 13 1:20 -4.77 1. ... Ke3 2. Bxd3 Nxd3 3. b3 Rg3 4. a4 Rxf3+ 5. Kg2 bxa4 6. bxa4 Nf4+ 7. Kg1 Rg3+ 8. Kf1 Rh3 9. Re1+ Kd2 10. Kf2 Rxh4 13-> 1:23 -4.77 1. ... Ke3 2. Bxd3 Nxd3 3. b3 Rg3 4. a4 Rxf3+ 5. Kg2 bxa4 6. bxa4 Nf4+ 7. Kg1 Rg3+ 8. Kf1 Rh3 9. Re1+ Kd2 10. Kf2 Rxh4
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