Author: Ernst Walet
Date: 11:44:23 04/21/02
Go up one level in this thread
On April 20, 2002 at 16:15:46, John Merlino wrote: >On April 20, 2002 at 12:56:06, Art Basham wrote: > >>White wins by Rg8..! (good test move)... >> >>[D]3R4/5r1p/5ppk/8/1Q3PPq/5P2/6K1/8 w - - bm Rg8; id Quick-08; > >Not so easy for CM (PIII-733), as it takes 9:13 to announce Mate in 13 (although >it finds Rg8 in less than on second): > >Time Depth Score Positions Moves >0:00 1/4 1.42 15406 1.Rd1 Rc7 2.Qf8+ Rg7 3.Qxf6 >0:00 2/5 4.99 19932 1.Rd1 f5 2.Rh1 Qxh1+ 3.Kxh1 fxg4 > 4.fxg4 >0:00 2/5 5.07 28296 1.Rg8 g5 2.fxg5+ Qxg5 3.Rxg5 fxg5 > 4.Qd6+ Kg7 5.Kg3 >0:00 2/6 5.54 42906 1.Rg8 f5 2.g5+ Kh5 3.Qd6 Rf6 4.gxf6 > h6 5.f7 >0:01 3/7 5.98 81838 1.Rg8 f5 2.g5+ Kh5 3.Qd6 Rf6 4.gxf6 > Qe1 5.f7 Qe2+ 6.Kg3 Qe1+ 7.Kh2 >0:02 4/8 9.77 223287 1.Rg8 f5 2.g5+ Kh5 3.Qd6 Rf6 4.Qc7 > h6 5.Rh8 Qxg5+ 6.fxg5 >0:10 5/9 10.75 1158509 1.Rg8 f5 2.g5+ Kh5 3.Qd6 Qxg5+ > 4.fxg5 f4 5.Qf6 Rc7 6.Qxf4 Rc2+ > 7.Kh3 >0:46 6/10 12.83 5331199 1.Rg8 f5 2.g5+ Kh5 3.Qd6 Qh1+ 4.Kxh1 > Kh4 5.Qd2 Kg3 6.Rd8 Ra7 7.Qe1+ > Kh3 8.Qf1+ Kg3 9.Qg1+ Kxf3 10.Qxa7 > Kxf4 >2:47 7/11 17.22 19938186 1.Rg8 f5 2.g5+ Kh5 3.Qd6 Qh1+ 4.Kxh1 > Kh4 5.Qd2 Kg3 6.Rd8 Rd7 7.Rxd7 > h6 8.gxh6 Kxf3 >9:13 8/12 Mate13 65894706 1.Rg8 f5 2.g5+ Kh5 3.Qd6 Rf6 4.Qc7 > h6 5.Rh8 Qxg5+ 6.fxg5 Rb6 7.Qxb6 > Kh4 8.Rxh6+ Kxg5 9.Rxg6+ Kh5 10.Rh6+ > Kg5 11.Qf6+ Kf4 12.Qd4+ Kg5 13.Qh4# > >jm On a Celeron 1200, 256MB hash and SS-10 it takes CM8K 56 seconds to see a mate in 18 and 10:52 to see mate in 10. Ernst. Time Depth Score Positions Moves 0:00 1/7 4.94 42625 1. Rd1 Kg7 2. Rh1 Qxh1+ 3. Kxh1 h5 4. Kg2 h4 5. Qb5 Rc7 0:00 1/8 4.94 113373 1. Rd1 Kg7 2. Rh1 Qxh1+ 3. Kxh1 Rc7 4. Qe4 h5 5. Kg2 h4 6. Qd5 0:01 1/9 5.03 203189 1. Rd1 Kg7 2. Rh1 Qxh1+ 3. Kxh1 Rc7 4. Kg2 Rc2+ 5. Kg1 Rc7 6. Qd2 f5 7. Kf2 0:02 2/10 5.09 414540 1. Rd1 Kg7 2. Rh1 Qxh1+ 3. Kxh1 Rd7 4. Kg2 h5 5. Kg3 hxg4 6. fxg4 Rd3+ 7. Kf2 0:20 2/10 12.20 3993026 1. Rg8 Qh5 2. gxh5 gxh5 3. f5 Rg7+ 4. Rxg7 Kxg7 5. Qe7+ Kg8 6. Qxf6 h4 7. Kh3 h5 8. Kxh4 0:36 3/11 17.03 7604810 1. Rg8 f5 2. g5+ Kh5 3. Qd6 Qh1+ 4. Kxh1 Kh4 5. Kg2 Rb7 6. Qd2 Rb2 7. Qxb2 Kh5 8. Rxg6 0:56 4/12 Mate18 12012933 1. Rg8 f5 2. g5+ Kh5 3. Qd6 Qxg5+ 4. fxg5 Ra7 5. Qh2+ Kxg5 6. f4+ Kf6 7. Qh4+ Ke6 8. Qe1+ Kd7 9. Qe8+ Kc7 10. Qb8+ Kc6 11. Rc8+ Kd7 12. Rd8+ Kc6 13. Rd6+ Kc5 14. Qb6+ Kc4 15. Rd4+ Kc3 16. Qb4+ 2:38 5/13 Mate12 35710990 1. Rg8 f5 2. g5+ Kh5 3. Qd6 Qxg5+ 4. fxg5 Kxg5 5. Qd8+ Rf6 6. f4+ Kxf4 7. Qc7+ Ke4 8. Rd8 h6 9. Qc4+ Ke5 10. Qd4+ Ke6 11. Qd6+ Kf7 12. Qd7# 4:58 6/14 Mate11 71424639 1. Rg8 f5 2. g5+ Kh5 3. Qd6 Rf6 4. Qc7 Rf7 5. Qxf7 Qg4+ 6. fxg4+ Kxg4 7. Qb3 Kxf4 8. Qg3+ Ke4 9. Rd8 h6 10. Qf3+ Ke5 11. Qe3# 10:52 7/15 Mate10 168907934 1. Rg8 f5 2. g5+ Kh5 3. Qd6 Rf6 4. gxf6 Qe1 5. Qe7 Qd2+ 6. Kg3 Qh2+ 7. Kxh2 h6 8. Qg7 g5 9. Qg6+ Kh4 10. Qxh6#
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