Author: Tom Brake
Date: 21:58:24 03/07/05
Go up one level in this thread
On March 08, 2005 at 00:13:51, Jon Dart wrote: >From a recent Arasan game on ICC: > >[D] r1bb1rnk/1pq2ppp/p3p3/4P3/2nNBB2/2N3Q1/P1P3PP/3R1R1K w - - > >Bxh7 wins. > >Crafty finds it after about 7 minutes on my XP2500+ but doesn't >give it more than a draw score: > > 11 2:21 -0.21 1. Nb3 Ne7 2. Qh3 Nf5 3. Bxf5 exf5 > 4. Nd5 Qc6 5. Qh5 Be6 6. Qf3 Bb6 7. > Nxb6 Qxf3 8. Rxf3 Nxb6 > 11-> 3:40 -0.21 1. Nb3 Ne7 2. Qh3 Nf5 3. Bxf5 exf5 > 4. Nd5 Qc6 5. Qh5 Be6 6. Qf3 Bb6 7. > Nxb6 Qxf3 8. Rxf3 Nxb6 > 12 4:13 -0.19 1. Nb3 Ne7 2. Qh3 Nf5 3. Nd2 Nce3 4. > Bxf5 Nxf5 5. Nde4 Be7 6. g4 Nh4 7. > Nd6 > 12 6:08 0.01 1. Bxh7 Kxh7 2. Ne4 Nh6 3. Nf6+ Kh8 > 4. Bxh6 gxh6 5. Qh4 Bxf6 6. exf6 Kh7 > 7. Qe4+ Kh8 8. Qh4 > 12-> 6:36 0.01 1. Bxh7 Kxh7 2. Ne4 Nh6 3. Nf6+ Kh8 > 4. Bxh6 gxh6 5. Qh4 Bxf6 6. exf6 Kh7 > 7. Qe4+ Kh8 8. Qh4 > 13 7:15 0.01 1. Bxh7 Kxh7 2. Ne4 Nh6 3. Nf6+ Kh8 > 4. Bxh6 gxh6 5. Qh4 Kg7 6. Qg4+ Kh8 > 7. Qh4 > >White can play 5. Qf4 instead with the line: >Bxh7 Kxh7 Ne4 Nh6 Nf6+ Kh8 Bxh6 gxh6 Qf4 Kg7 Rd3 Nxe5 Rh3 Rh8 Ne8+ >winning the Queen. CM9K finds it in 19 seconds on an Athlon64 3000, dropping briefly then picking back up, rejecting 2. ... Nh6 completely. Time Depth Score Positions Moves 0:01 1/7 0.45 423800 1.Rb1 Be7 2.Qh3 h6 3.Qd3 Nxe5 4.Bxe5 Qxe5 5.Bxb7 Rb8 0:02 1/7 0.64 509560 1.Nce2 Be7 2.Qh3 h6 3.Qc3 Bd7 4.Nc6 Bxc6 5.Qxc4 0:04 1/8 0.51 1141515 1.Nce2 h6 2.Qc3 Ne7 3.Nc6 Nxc6 4.Qxc4 Be7 0:10 1/9 0.55 3269508 1.Nce2 Be7 2.Qh3 h6 3.Qc3 Bd7 4.Qb3 Na5 5.Qd3 Rac8 0:19 1/9 1.23 5898009 1.Bxh7 Kxh7 2.Ne4 Nh6 3.Nf6+ Kh8 4.Qh4 Nxe5 5.Bxh6 Bxf6 6.Bxg7+ Kxg7 7.Rxf6 0:25 2/10 0.56 8033059 1.Bxh7 Kxh7 2.Ne4 Nh6 3.Nf6+ Kh8 4.Bxh6 gxh6 5.Qh3 Kg7 6.Qg4+ Kh8 7.Qf4 Kg7 8.Rde1 Rh8 2:47 2/11 2.12 57222105 1.Bxh7 Kxh7 2.Ne4 Qe7 3.Bg5 Qa3 4.Qh4+ Nh6 5.Bxd8 Qxa2 6.Be7 Re8 7.Rxf7 Nxe5
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