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Subject: Re: Good Test Move

Author: Slater Wold

Date: 17:26:48 03/22/04

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On March 22, 2004 at 20:14:21, Art Basham wrote:

>[D]r4rk1/1bbnqpp1/p4n1p/1pp1p3/4P1NB/2NP3P/PPPQB1P1/R4RK1 w - -
>
>White plays...Nxh6+...and wins!
>
>Any programs show this move as a possibility?
>
>Thanks!

Crafty 19.11 - FX51:

              clearing hash tables
              time surplus   0.00  time limit 1666:39 (1666:39)
              depth   time  score   variation (1)
                7     0.08   1.68   1. Nxf6+ Nxf6 2. Bxf6 gxf6 3. Qxh6
                                    Bd8 4. a4 c4 5. axb5 Qc5+ 6. d4 Qxd4+
                7     0.17   1.73   1. Rxf6 Nxf6 2. Bxf6 Qe6 3. Bh4 b4
                                    4. Nd1
                7->   0.19   1.73   1. Rxf6 Nxf6 2. Bxf6 Qe6 3. Bh4 b4
                                    4. Nd1
                8     0.25   1.71   1. Rxf6 Nxf6 2. Bxf6 Qe6 3. Bh4 b4
                                    4. Na4 Bd6
                8     0.39     ++   1. Nxf6+!!
                8->   0.55   2.12   1. Nxf6+
                9     1.00     ++   1. Nxf6+!!
                9     1.55   2.78   1. Nxf6+ Nxf6 2. Bxf6 gxf6 3. Qxh6
                                    f5 4. Rxf5 Bd8 5. Qh5 f6 6. Nd5 Qg7
                9->   1.61   2.78   1. Nxf6+ Nxf6 2. Bxf6 gxf6 3. Qxh6
                                    f5 4. Rxf5 Bd8 5. Qh5 f6 6. Nd5 Qg7
               10     2.98     ++   1. Nxf6+!!
               10     3.97   3.23   1. Nxf6+ Nxf6 2. Bxf6 gxf6 3. Qxh6
                                    f5 4. Rxf5 f6 5. Raf1 Qg7 6. Rxf6 Qxh6
                                    7. Rxh6
               10->   4.11   3.23   1. Nxf6+ Nxf6 2. Bxf6 gxf6 3. Qxh6
                                    f5 4. Rxf5 f6 5. Raf1 Qg7 6. Rxf6 Qxh6
                                    7. Rxh6
               11     5.83   3.09   1. Nxf6+ Nxf6 2. Bxf6 gxf6 3. Qxh6
                                    f5 4. Rxf5 f6 5. Raf1 Qg7 6. Qh4 Bd8
                                    7. Nd5 Bxd5 8. exd5
               11     9.77     ++   1. Rxf6!!
               11    14.72   4.37   1. Rxf6 Nxf6 2. Bxf6 Qe6 3. Nxh6+ Kh7
                                    4. Ng4 Bd8 5. Bxe5 b4 6. Na4 Be7
               11->  18.05   4.37   1. Rxf6 Nxf6 2. Bxf6 Qe6 3. Nxh6+ Kh7
                                    4. Ng4 Bd8 5. Bxe5 b4 6. Na4 Be7
               12    25.75   4.59   1. Rxf6 Nxf6 2. Bxf6 Qd6 3. Nxh6+ Kh7
                                    4. Ng4 Rfe8 5. Qg5 Qf8 6. Qf5+ Kg8
                                    7. Bxe5 Bxe5 8. Nxe5
               12->  28.48   4.59   1. Rxf6 Nxf6 2. Bxf6 Qd6 3. Nxh6+ Kh7
                                    4. Ng4 Rfe8 5. Qg5 Qf8 6. Qf5+ Kg8
                                    7. Bxe5 Bxe5 8. Nxe5
               13     1:00   4.85   1. Rxf6 Nxf6 2. Bxf6 Qd6 3. Nxh6+ Kh7
                                    4. Ng4 Bd8 5. Bxe5 Qd7 6. Bf3 Bh4 7.
                                    Nd5 Kg8
               13->   1:05   4.85   1. Rxf6 Nxf6 2. Bxf6 Qd6 3. Nxh6+ Kh7
                                    4. Ng4 Bd8 5. Bxe5 Qd7 6. Bf3 Bh4 7.
                                    Nd5 Kg8
?              14     1:15   1/47*  1. Rxf6
White(1): ?
              time=1:22  cpu=99%  mat=0  n=166008488  fh=90%  nps=2.00M
              ext-> chk=4742578 cap=489310 pp=73298 1rep=547230 mate=35536
              predicted=0  nodes=166008488  evals=53617167  50move=0
              endgame tablebase-> probes=0  hits=0
              hashing-> 19%(raw) 16%(depth)  98%(sat)  99%(pawn)
              hashing-> 0%(exact)  11%(lower)  1%(upper)

White(1): Rxf6



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