Author: John Merlino
Date: 20:57:52 03/29/05
Go up one level in this thread
On March 29, 2005 at 23:32:01, Mike Byrne wrote: >Is one our best posters and, with his many posts in the archives, you can find >many classic positions just by searching for posts made by him. > > >Back in the year 2000, he posted this little gem: > >http://chessprogramming.org/cccsearch/ccc.php?art_id=119836 > >[d]2R4Q/3qkp2/3r2p1/3p3p/3P3P/5P2/5KP1/8 w > >Crafty 20.0 > >White(1): g > clearing hash tables >crafty is behind 2.0 on time, reducing by 1/6. > time surplus 0.00 time limit 10:00 (10:00) > depth time score variation (1) > 1 0.00 0.48 1. Qe5+ Qe6 > 1 0.00 0.56 1. Qg8 > 1-> 0.01 0.56 1. Qg8+ > 2 0.01 -1 1. Qg8 > 2 0.01 0.10 1. Qg8 Rc6 > 2 0.01 0.60 1. Qf8+ Ke6 2. g4 > 2-> 0.03 0.60 1. Qf8+ Ke6 2. g4 > 3 0.03 -1 1. Qf8+ > 3 0.03 0.16 1. Qf8+ Kf6 2. Qe8 Qe6 > 3 0.03 0.20 1. g4 Re6 2. Qg8 > 3 0.03 0.26 1. Kg3 Re6 2. Qg8 > 3-> 0.03 0.26 1. Kg3 Re6 2. Qg8 > 4 0.03 0.36 1. Kg3 Rc6 2. Qf8+ Ke6 3. Re8+ Kf5 > 4 0.03 0.38 1. Qf8+ Kf6 2. Kg3 Re6 3. Qd8+ Re7 > 4. Qg8 <HT> > 4-> 0.05 0.38 1. Qf8+ Kf6 2. Kg3 Re6 3. Qd8+ Re7 > 4. Qg8 <HT> > 5 0.05 0.28 1. Qf8+ Kf6 2. g4 Re6 3. Qh8+ Ke7 4. > Rc5 hxg4 5. fxg4 > 5 0.05 0.36 1. Kg3 Rc6 2. Qf8+ Kf6 3. Qh8+ Ke7 > <HT> > 5 0.05 0.37 1. Qg8 Re6 2. Qf8+ Kf6 3. Qd8+ Re7 > 4. Qxd7 Rxd7 5. Re8 > 5 0.05 0.42 1. g4 Rb6 2. Qf8+ Kf6 3. g5+ Kf5 4. > Re8 > 5-> 0.06 0.42 1. g4 Rb6 2. Qf8+ Kf6 3. g5+ Kf5 4. > Re8 > 6 0.08 0.43 1. g4 hxg4 2. Qf8+ Kf6 3. fxg4 Re6 > 4. Kg3 > 6-> 0.09 0.43 1. g4 hxg4 2. Qf8+ Kf6 3. fxg4 Re6 > 4. Kg3 (s=2) > 7 0.11 0.40 1. g4 hxg4 2. fxg4 Re6 3. Qf8+ Kf6 > 4. Kf3 Re4 5. Qh8+ Ke7 6. Qf8+ Kf6 > 7-> 0.15 0.40 1. g4 hxg4 2. fxg4 Re6 3. Qf8+ Kf6 > 4. Kf3 Re4 5. Qh8+ Ke7 6. Qf8+ Kf6 > (s=2) > 8 0.20 0.48 1. g4 hxg4 2. Qf8+ Kf6 3. fxg4 Re6 > 4. Qd8+ Qxd8 5. Rxd8 Re4 6. Rxd5 Rxg4 > <HT> > 8 0.23 0.71 1. Qf8+ Kf6 2. Re8 Re6 3. Qh8+ Kf5 > 4. Qh6 f6 5. g4+ hxg4 6. fxg4+ Kxg4 > 7. Qxg6+ Kf4 8. Rf8 > 8-> 0.23 0.71 1. Qf8+ Kf6 2. Re8 Re6 3. Qh8+ Kf5 > 4. Qh6 f6 5. g4+ hxg4 6. fxg4+ Kxg4 > 7. Qxg6+ Kf4 8. Rf8 (s=3) > 9 0.30 1.07 1. Qf8+ Kf6 2. Re8 Re6 3. Qh8+ Kf5 > 4. Qh6 Kf6 5. Qg5+ Kg7 6. Rd8 Qa4 7. > Rxd5 Qe8 (s=2) > 9-> 0.31 1.07 1. Qf8+ Kf6 2. Re8 Re6 3. Qh8+ Kf5 > 4. Qh6 Kf6 5. Qg5+ Kg7 6. Rd8 Qa4 7. > Rxd5 Qe8 (s=2) > 10 0.36 0.77 1. Qf8+ Kf6 2. Re8 Re6 3. Qh8+ Kf5 > 4. Qh6 Kf6 5. Qg5+ Kg7 6. Rd8 Qc6 7. > Qxd5 Qc2+ 8. Kg3 Re2 > 10 0.81 0.78 1. Ra8 Re6 2. Qf8+ Kf6 3. Qd8+ Re7 > 4. Ra6+ Kf5 5. Qb8 Re6 6. Ra7 Qe8 7. > Qxe8 Rxe8 8. Rxf7+ Ke6 > 10 1.23 1.00 1. g4 hxg4 2. fxg4 Rf6+ 3. Kg3 Rc6 > 4. Qf8+ Kf6 5. g5+ Kf5 6. Rxc6 Qxc6 > 7. Qxf7+ Ke4 8. Qf4+ Kd3 9. Qe5 > 10-> 1.23 1.00 1. g4 hxg4 2. fxg4 Rf6+ 3. Kg3 Rc6 > 4. Qf8+ Kf6 5. g5+ Kf5 6. Rxc6 Qxc6 > 7. Qxf7+ Ke4 8. Qf4+ Kd3 9. Qe5 (s=2) > 11 1.53 0.94 1. g4 hxg4 2. fxg4 Rf6+ 3. Kg3 Rc6 > 4. Qf8+ Kf6 5. g5+ Kf5 6. Rxc6 Qxc6 > 7. Qxf7+ Ke4 8. Qf4+ Kd3 9. Qe5 Qc4 > 11-> 1.80 0.94 1. g4 hxg4 2. fxg4 Rf6+ 3. Kg3 Rc6 > 4. Qf8+ Kf6 5. g5+ Kf5 6. Rxc6 Qxc6 > 7. Qxf7+ Ke4 8. Qf4+ Kd3 9. Qe5 Qc4 > (s=2) > 12 3.70 +1 1. g4!! > 12 5.25 1.42 1. g4 hxg4 2. Qf8+ Kf6 3. fxg4 Ra6 > 4. Re8 Ra2+ 5. Kg3 Ra3+ 6. Qxa3 Qxe8 > 7. Qf3+ Kg7 8. Qxd5 Qe3+ 9. Kg2 > 12-> 5.73 1.42 1. g4 hxg4 2. Qf8+ Kf6 3. fxg4 Ra6 > 4. Re8 Ra2+ 5. Kg3 Ra3+ 6. Qxa3 Qxe8 > 7. Qf3+ Kg7 8. Qxd5 Qe3+ 9. Kg2 > 13 7.26 1.37 1. g4 hxg4 2. Qf8+ Kf6 3. fxg4 Ra6 > 4. Re8 Ra2+ 5. Kg3 Ra3+ 6. Qxa3 Qxe8 > 7. Qf3+ Kg7 8. Qxd5 Qe3+ 9. Kg2 Qf4 > 13-> 9.19 1.37 1. g4 hxg4 2. Qf8+ Kf6 3. fxg4 Ra6 > 4. Re8 Ra2+ 5. Kg3 Ra3+ 6. Qxa3 Qxe8 > 7. Qf3+ Kg7 8. Qxd5 Qe3+ 9. Kg2 Qf4 > (s=2) > 14 23.72 1.63 1. g4 hxg4 2. Qf8+ Kf6 3. fxg4 Ra6 > 4. Rc3 Ra2+ 5. Kf3 Ra6 6. g5+ Kf5 7. > Qb8 Qd6 8. Qb1+ Ke6 9. Re3+ Kd7 10. > Qb7+ Kd8 11. Qxf7 > 14-> 27.00 1.63 1. g4 hxg4 2. Qf8+ Kf6 3. fxg4 Ra6 > 4. Rc3 Ra2+ 5. Kf3 Ra6 6. g5+ Kf5 7. > Qb8 Qd6 8. Qb1+ Ke6 9. Re3+ Kd7 10. > Qb7+ Kd8 11. Qxf7 > 15 1:05 +1 1. g4!! > 15 1:28 2.10 1. g4 hxg4 2. fxg4 Re6 3. Qf8+ Kf6 > 4. Rc3 Re4 5. Rf3+ Ke6 6. h5 Qe7 7. > Qc8+ Kd6 8. Qc5+ Kd7 9. Qxd5+ Ke8 10. > Qa8+ Kd7 11. Qb7+ Kd6 12. Qxe7+ Kxe7 > 13. Re3 Rxe3 14. Kxe3 > 15-> 1:34 2.10 1. g4 hxg4 2. fxg4 Re6 3. Qf8+ Kf6 > 4. Rc3 Re4 5. Rf3+ Ke6 6. h5 Qe7 7. > Qc8+ Kd6 8. Qc5+ Kd7 9. Qxd5+ Ke8 10. > Qa8+ Kd7 11. Qb7+ Kd6 12. Qxe7+ Kxe7 > 13. Re3 Rxe3 14. Kxe3 >? 16 1:34 1/32* 1. g4 >White(1): ? > time=1:39 cpu=198% mat=0 n=364369908 fh=91% nps=3.68M > ext-> chk=37477309 cap=1200185 pp=535415 1rep=2496968 mate=116404 > predicted=0 nodes=364369908 evals=220466502 50move=0 > endgame tablebase-> probes=1301 hits=3 > SMP-> split=2774 stop=455 data=10/64 cpu=3:16 elap=1:39 > >White(1): g4 > time used: 1:39 1.Qf8+ also works via a transposition -- 1...Kf6 2.g4 hxg4 3.fxg4 Re6. This is the line that CMX Yoda v25 chooses after three seconds on a P4-2.4. jm
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