Author: Dan Homan
Date: 13:18:47 11/05/99
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I missed an obvious simplification in my verification search. Here is the output of my program with Null Move - ON + verification search. At large depths the speed here is much faster than the previous post due to the simplification I found. - Dan P.S. Does anyone have any other good null-move killer positions to suggest? White-To-Move[1]: setboard 4q/p5p/k5P/8/1PN4K/8/1N2B/8 w - - White-To-Move[1]: analyze Analysis mode: Enter commands/moves as ready. 1. -0.29 0 5 1. b5+ 1. 0.69 0 20 1. Ne5+ 1. 0.74 0 38 1. Bh5 1. 0.83 0 39 1. Bd3 1. 0.83 0 47 1. Bd3 2. -0.09 0 97 1. Bd3 Qe7+ 2. 0.68 0 387 1. Ne3+ Kb7 2. 0.76 0 661 1. Ne5+ Kb6 2. 0.76 0 664 1. Ne5+ Kb6 3. 0.77 0 1126 1. Ne5+ Kb7 2. Bf3+ 3. 0.77 0 1746 1. Ne5+ Kb7 2. Bf3+ 4. 0.72 0 2877 1. Ne5+ Kb7 2. Nbd3 Qd8+ 4. 0.72 0 4944 1. Ne5+ Kb7 2. Nbd3 Qd8+ 5. 0.67 0 13867 1. Ne5+ Kb6 2. Nbd3 Qe7+ 3. Kg4 5. 0.67 0 19104 1. Ne5+ Kb6 2. Nbd3 Qe7+ 3. Kg4 6. 0.70 0 29093 1. Ne5+ Kb6 2. Nbd3 Qb5 3. Kg4 a5 6. 0.70 0 43143 1. Ne5+ Kb6 2. Nbd3 Qb5 3. Kg4 a5 7. 0.72 0 65244 1. Ne5+ Kb6 2. Nbd3 Qb5 3. Kg4 a5 4. ba5+ 7. 0.72 0 91558 1. Ne5+ Kb6 2. Nbd3 Qb5 3. Kg4 a5 4. ba5+ 8. 0.72 0 130795 1. Ne5+ Kb6 2. Nbd3 Qb5 3. Kg4 a5 4. ba5+ Kc7 8. 0.72 1 199550 1. Ne5+ Kb6 2. Nbd3 Qb5 3. Kg4 a5 4. ba5+ Kc7 9. 0.73 1 300281 1. Ne5+ Kb6 2. Nbd3 Qb5 3. Kg4 a5 4. ba5+ Kc7 5. Bf3 9. 2.33 1 321411 1. b5+ Qxb5 2. Nd3 Qxc4+ 3. Nf4 Qxe2 4. Nxe2 Kb6 5. Nd4 9. 2.33 2 442444 1. b5+ Qxb5 2. Nd3 Qxc4+ 3. Nf4 Qxe2 4. Nxe2 Kb6 5. Nd4 10. 5.47 3 654531 1. b5+ Qxb5 2. Nd3 Qb8 3. Nc5+ Kb5 4. Ne5+ Kc5 5. Nd7+ Kd6 10. 5.47 5 970055 1. b5+ Qxb5 2. Nd3 Qb8 3. Nc5+ Kb5 4. Ne5+ Kc5 5. Nd7+ Kd6 11. 5.48 5 1087464 1. b5+ Qxb5 2. Nd3 Qb8 3. Nc5+ Kb5 4. Ne5+ Kc5 5. Nd7+ Kd6 6. Nxb8 11. 5.48 8 1730080 1. b5+ Qxb5 2. Nd3 Qb8 3. Nc5+ Kb5 4. Ne5+ Kc5 5. Nd7+ Kd6 6. Nxb8 12. 5.38 17 3297167 1. b5+ Qxb5 2. Nd3 Qb1 3. Nc5+ Kb5 4. Na3+ Kc5 5. Nxb1 a5 6. Nc3 Kb4 12. 5.38 26 5215345 1. b5+ Qxb5 2. Nd3 Qb1 3. Nc5+ Kb5 4. Na3+ Kc5 5. Nxb1 a5 6. Nc3 Kb4 13. 4.24 40 8066130 1. b5+ Qxb5 2. Nd3 Qxc4+ 3. Nf4 Qxe2 4. Nxe2 Kb6 5. Kg5 a5 6. Nd4 a4 7. Nf5 13. 4.24 62 12650000 1. b5+ Qxb5 2. Nd3 Qxc4+ 3. Nf4 Qxe2 4. Nxe2 Kb6 5. Kg5 a5 6. Nd4 a4 7. Nf5 14. 4.88 65 13394715 1. b5+ Qxb5 2. Nd3 Qxc4+ 3. Nf4 Qxe2 4. Nxe2 Kb6 5. Nf4 a5 6. Nd5+ Kc5 7. Ne7 a4 14. 4.88 103 21601996 1. b5+ Qxb5 2. Nd3 Qxc4+ 3. Nf4 Qxe2 4. Nxe2 Kb6 5. Nf4 a5 6. Nd5+ Kc5 7. Ne7 a4
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