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Subject: Re: Avoid move test position

Author: Mike Byrne

Date: 08:34:23 11/28/04

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Crafty Classic

Black(1): Nf6
              time used:  22.88
White(2): [d]4rr2/p7/bpk1pp2/3pR1N1/3P4/2P2R2/PP3PPP/6K1 w - - 0 36; am Nxe6;
White(1): g
end-game phase
              clearing hash tables
              time surplus  36.93  time limit 22.97 (3:34)
              depth   time  score   variation (1)
                8     0.11   2.05   1. Nh7 fxe5 2. Nxf8 exd4 3. cxd4 Bc4
                                    4. h4 e5 5. Rf6+ Kb5 (s=2)
                8     0.16   2.35   1. Nxe6 fxe5 2. Nxf8 exd4 3. Rf6+ Kb7
                                    4. h4 dxc3 5. Rf7+ Kc6 6. bxc3
                8->   0.19   2.35   1. Nxe6 fxe5 2. Nxf8 exd4 3. Rf6+ Kb7
                                    4. h4 dxc3 5. Rf7+ Kc6 6. bxc3 (s=3)
                9     0.25   2.35   1. Nxe6 fxe5 2. Nxf8 exd4 3. Rf6+ Kb7
                                    4. h4 dxc3 5. Rf7+ Kc6 6. bxc3 (s=2)
                9->   0.35   2.35   1. Nxe6 fxe5 2. Nxf8 exd4 3. Rf6+ Kb7
                                    4. h4 dxc3 5. Rf7+ Kc6 6. bxc3 (s=2)
               10     0.50   1.99   1. Nxe6 fxe5 2. Nxf8 exd4 3. Rf6+ Kb7
                                    4. Rf7+ Kc6 5. f4 d3 6. Rf6+ Kc5 7.
                                    g4
               10     0.80   2.01   1. Nh7 fxe5 2. Nxf8 Be2 3. Rf7 exd4
                                    4. cxd4 a5 5. Rf6 Kd6 6. h4
               10->   0.88   2.01   1. Nh7 fxe5 2. Nxf8 Be2 3. Rf7 exd4
                                    4. cxd4 a5 5. Rf6 Kd6 6. h4 (s=3)
               11     1.08   2.01   1. Nh7 fxe5 2. Nxf8 exd4 3. cxd4 Kd6
                                    4. h4 Be2 5. Rf7 Re7 6. Rf6 a5 <HT>
                                    (s=2)
               11->   1.47   2.01   1. Nh7 fxe5 2. Nxf8 exd4 3. cxd4 Kd6
                                    4. h4 Be2 5. Rf7 Re7 6. Rf6 a5 <HT>
                                    (s=3)
               12     1.94   1.91   1. Nh7 fxe5 2. Nxf8 exd4 3. cxd4 e5
                                    4. Rf6+ Kb7 5. dxe5 Rxe5 6. Re6 Re2
                                    7. Rxe2 Bxe2 8. h4 (s=2)
               12->   3.00   1.91   1. Nh7 fxe5 2. Nxf8 exd4 3. cxd4 e5
                                    4. Rf6+ Kb7 5. dxe5 Rxe5 6. Re6 Re2
                                    7. Rxe2 Bxe2 8. h4 (s=3)
               13     4.41   2.09   1. Nh7 fxe5 2. Rxf8 Re7 3. Ng5 exd4
                                    4. cxd4 e5 5. dxe5 Rxe5 6. Nf3 Re7
                                    7. Rd8 Be2 8. Nd4+ Kc5 (s=2)
               13->   6.16   2.09   1. Nh7 fxe5 2. Rxf8 Re7 3. Ng5 exd4
                                    4. cxd4 e5 5. dxe5 Rxe5 6. Nf3 Re7
                                    7. Rd8 Be2 8. Nd4+ Kc5 (s=3)
               14     7.86   1.92   1. Nh7 fxe5 2. Rxf8 Re7 3. Ng5 exd4
                                    4. cxd4 e5 5. dxe5 Rxe5 6. Nf3 Re7
                                    7. g4 Bd3 8. Rf6+ Kc5 9. h4 (s=2)
               14->  12.05   1.92   1. Nh7 fxe5 2. Rxf8 Re7 3. Ng5 exd4
                                    4. cxd4 e5 5. dxe5 Rxe5 6. Nf3 Re7
                                    7. g4 Bd3 8. Rf6+ Kc5 9. h4 (s=3)
              time=22.97  cpu=194%  mat=2  n=27088856  fh=91%  nps=1.18M
              ext-> chk=953595 cap=65659 pp=119458 1rep=54008 mate=11090
              predicted=1  nodes=27088856  evals=7955190  50move=0
              endgame tablebase-> probes=0  hits=0
              SMP->  split=1185  stop=93  data=6/128  cpu=44.76  elap=22.97

White(1): Nh7
              time used:  22.97
Black(1): undo
NOTICE: 60 moves to next time control

nice fail low if searching just Nxe6
White(1): search Nxe6
White(1): g
              time surplus   0.00  time limit 21.92 (3:24)
              depth   time  score   variation (1)
               10     0.20   1.96   1. Nxe6 fxe5 2. Nxf8 exd4 3. Rf6+ Kb5
                                    4. Ne6 d3 5. b3 d2 6. Nd4+ Ka5 7. Nc6+
                                    Kb5 8. Nxa7+ Kc5
               10->   0.20   1.96   1. Nxe6 fxe5 2. Nxf8 exd4 3. Rf6+ Kb5
                                    4. Ne6 d3 5. b3 d2 6. Nd4+ Ka5 7. Nc6+
                                    Kb5 8. Nxa7+ Kc5
               11     0.86     -1   1. Nxe6
               11     1.86   0.11   1. Nxe6 fxe5 2. Nxf8 exd4 3. Rf6+ Kc7
                                    4. Rf7+ Kc8 5. f4 d3 6. Rxa7 Re1+ 7.
                                    Kf2 d2 8. Rxa6 d1=Q 9. Rxb6
               11->   1.86   0.11   1. Nxe6 fxe5 2. Nxf8 exd4 3. Rf6+ Kc7
                                    4. Rf7+ Kc8 5. f4 d3 6. Rxa7 Re1+ 7.
                                    Kf2 d2 8. Rxa6 d1=Q 9. Rxb6
               12     4.01     -1   1. Nxe6
               12     6.06  -0.62   1. Nxe6 fxe5 2. Nxf8 exd4 3. Rf6+ Kb7
                                    4. Re6 Rxf8 5. Re7+ Kb8 6. cxd4 Rf4
                                    7. g3 Rxd4 8. h4 <HT>
               12->   6.06  -0.62   1. Nxe6 fxe5 2. Nxf8 exd4 3. Rf6+ Kb7
                                    4. Re6 Rxf8 5. Re7+ Kb8 6. cxd4 Rf4
                                    7. g3 Rxd4 8. h4 <HT>
               13     9.19     -1   1. Nxe6
               13    14.28  -1.41   1. Nxe6 fxe5 2. Rxf8 Rxe6 3. h4 exd4
                                    4. cxd4 Re2 5. h5 Rxb2 6. h6 Bd3 7.
                                    Rc8+ Kd6 8. a4
               13->  14.28  -1.41   1. Nxe6 fxe5 2. Rxf8 Rxe6 3. h4 exd4
                                    4. cxd4 Re2 5. h5 Rxb2 6. h6 Bd3 7.
                                    Rc8+ Kd6 8. a4
               14    21.64  -1.25   1. Nxe6 fxe5 2. Rxf8 Rxe6 3. h4 exd4
                                    4. cxd4 Re1+ 5. Kh2 Re4 6. Rf6+ Kb5
                                    7. h5 Rh4+ 8. Kg3 Rxh5 9. Rf7 Kc4 10.
                                    Rxa7
               14->  21.64  -1.25   1. Nxe6 fxe5 2. Rxf8 Rxe6 3. h4 exd4
                                    4. cxd4 Re1+ 5. Kh2 Re4 6. Rf6+ Kb5
                                    7. h5 Rh4+ 8. Kg3 Rxh5 9. Rf7 Kc4 10.
                                    Rxa7
              time=21.92  cpu=195%  mat=2  n=24480331  fh=92%  nps=1.12M
              ext-> chk=1130116 cap=28975 pp=144605 1rep=150914 mate=43506
              predicted=1  nodes=24480331  evals=7426944  50move=0
              endgame tablebase-> probes=0  hits=0
              SMP->  split=664  stop=55  data=5/128  cpu=42.77  elap=21.92

White(1): Nxe6
              time used:  21.92



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