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Subject: Re: How long before your program sees that Nd5+ is not really the best?

Author: Omid David Tabibi

Date: 05:22:54 04/23/04

Go up one level in this thread


On April 23, 2004 at 04:27:28, Dann Corbit wrote:

>[D]r1bq1r2/ppppkpQp/2n2N2/2b5/4P3/1P3N2/PBP3PP/R3KB1n w Q - bm Nxh7;

Falcon 1.0.12.7 running on GenuineIntel 733MHz 256MB:
depth     time    nodes   nps  score  variation
 8/36     4.44     900k  202k   0.92  1.f6d5 e7e8 2.b2f6 c6e7 3.f6e7 c5e7
                                      4.g7e5 f8g8 5.d5c7 e8f8 6.c7a8
 9/34    10.76    2315k  215k   0.62  1.f6d5--
 9/37    12.45    2692k  216k   0.48  1.f6d5 e7e8 2.b2f6 c6e7 3.f6e7 c5e7
                                      4.g7e5 f8g8 5.d5c7 e8f8 6.c7a8 d7d6
 9/37    15.24    3211k  210k   0.49  1.f6h7++
 9/37    19.87    4079k  205k   1.22  1.f6h7++
 9/37    24.92    5051k  202k   2.12  1.f6h7 c5b4 2.e1e2 e7e8 3.b2f6 b4e7
                                      4.f3g5 c6e5 5.g7f8 e7f8 6.f6d8 f8d6




>
>PFGA: EPD record: 1
>              clearing hash tables
>              time surplus   0.00  time limit 50:00 (50:00)
>              depth   time  score   variation (1)
>                6->   0.34   0.01   1. Nd5+ Ke8 2. Nf6+ Ke7 3. Nd5+
>                7     0.46   0.01   1. Nd5+ Ke8 2. Nf6+ Ke7 3. Nd5+
>                7->   2.32   0.01   1. Nd5+ Ke8 2. Nf6+ Ke7 3. Nd5+
>                8     2.52   0.01   1. Nd5+ Ke8 2. Nf6+ Ke7 3. Nd5+
>                8->   4.77   0.01   1. Nd5+ Ke8 2. Nf6+ Ke7 3. Nd5+
>                9     5.22     +1   1. Nd5+!!
>                9     6.25   1.08   1. Nd5+ Ke8 2. Bf6 Ne7 3. Bxe7 Bxe7
>                                    4. Qe5 Rg8 5. Nxc7+ Kf8 6. Nxa8 Qe8
>                9->  28.93   1.08   1. Nd5+ Ke8 2. Bf6 Ne7 3. Bxe7 Bxe7
>                                    4. Qe5 Rg8 5. Nxc7+ Kf8 6. Nxa8 Qe8
>               10    30.61   0.87   1. Nd5+ Ke8 2. Bf6 Ne7 3. Bxe7 Bxe7
>                                    4. Qe5 Rg8 5. Nxc7+ Kf8 6. Nxa8 Bf6
>                                    7. Qd6+ Qe7
>               10->  54.69   0.87   1. Nd5+ Ke8 2. Bf6 Ne7 3. Bxe7 Bxe7
>                                    4. Qe5 Rg8 5. Nxc7+ Kf8 6. Nxa8 Bf6
>                                    7. Qd6+ Qe7
>               11     1:05   0.83   1. Nd5+ Ke8 2. Bf6 Ne7 3. Bxe7 Bxe7
>                                    4. Qe5 f6 5. Nxc7+ Kf7 6. Qh5+ Kg7
>                                    7. Qg4+ Kh8 8. Nxa8 Qe8
>               11->   3:52   0.83   1. Nd5+ Ke8 2. Bf6 Ne7 3. Bxe7 Bxe7
>                                    4. Qe5 f6 5. Nxc7+ Kf7 6. Qh5+ Kg7
>                                    7. Qg4+ Kh8 8. Nxa8 Qe8
>               12     4:13   0.86   1. Nd5+ Ke8 2. Bf6 Ne7 3. Bxe7 Bxe7
>                                    4. Qe5 f6 5. Nxc7+ Kf7 6. Qd5+ Kg7
>                                    7. Nxa8 Bb4+ 8. Nd2 Bc3 9. O-O-O
>               12    10:47     +1   1. Nxh7!!
>               12    14:52   1.54   1. Nxh7 Bb4+ 2. Nd2 Ke8 3. Nf6+ Ke7
>                                    4. Nd5+ Ke8 5. Bf6 Ne7 6. Nxb4 a5 7.
>                                    Nd5 Rg8 8. Qxg8+ Nxg8 9. Bxd8 Kxd8
>               12->  29:28   1.54   1. Nxh7 Bb4+ 2. Nd2 Ke8 3. Nf6+ Ke7
>                                    4. Nd5+ Ke8 5. Bf6 Ne7 6. Nxb4 a5 7.
>                                    Nd5 Rg8 8. Qxg8+ Nxg8 9. Bxd8 Kxd8
>               13    32:53     +1   1. Nxh7!!
>               13    44:35   2.51   1. Nxh7 Bb4+ 2. Nd2 Ke8 3. Nf6+ Ke7
>                                    4. Nd5+ Ke8 5. Bf6 Ne7 6. Bxe7 Bxe7
>                                    7. Qe5 Rg8 8. Nxc7+ Kf8 9. Nxa8 Qe8
>              time=50:00  cpu=94%  mat=-5  n=1466497086  fh=93%  nps=488K
>              ext-> chk=90015145 cap=3657675 pp=260660 1rep=6348340 mate=193904
>              predicted=0  nodes=1466497086  evals=267693847  50move=0
>              endgame tablebase-> probes=0  hits=0



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