Author: Vincent Diepeveen
Date: 07:20:34 06/06/01
Go up one level in this thread
On June 06, 2001 at 01:30:18, Dann Corbit wrote:
As a chessplayer i'm pretty sure that Bc8 wins way faster.
But of course first wasting a tempo with Bh3-f1 c5 Ba6,
that's of course coming down to the same position, but easier
to see for computers as they can force
black then to capture whites bishop or capture with the bishop the pawn.
In the other variations where you don't hit the EGTB white is a queen
up and mates within a move or 7 after horizon, but probably that's harder
to see :)
>title "WAC.146"
>Stored 0 learned positions into hash table
>solution Bc8! Bd3!
>usetime = 59.00, mintime = 59.00 maxtime = 59.00 tl 59.00 ml 0
> 2 0.000 0.26 1t 1.Kxd6 Kxf5 {80}
> 7 0.000 0.73 1t 1.c5 Kxf5 2.Kxd6 {80}
> 14 0.001 3.08 1t 1.Be6 {350}
> 27 0.001 3.08 1. 1.Be6 {350}
> 57 0.001 2.66 2-- 1.Be6 f2 2.Bc8 {350}
> 105 0.001 2.59 2t 1.Be6 f2 2.Bh3 {350}
> 130 0.002 2.66 2t+ 1.Bc2 f2 2.Bd3 {350}
> 160 0.002 2.66 2t 1.Bc2 f2 2.Bd3 {350}
> 201 0.002 2.89 2t+ 1.Bd3 Ke3 {350}
> 213 0.003 2.89 2t 1.Bd3 Ke3 {350}
> 311 0.003 2.94 2t+ 1.Bh3 Ke5 {350}
> 321 0.003 2.94 2t 1.Bh3 Ke5 {350}
> 321 0.003 2.94 2. 1.Bh3 Ke5 {350}
> 372 0.004 3.11 3t 1.Bh3 Ke5 2.Be6 {350}
> 686 0.016 3.11 3. 1.Bh3 Ke5 2.Be6 {350}
> 1323 0.017 2.96 4t 1.Bh3 Kg3 2.Bf1 Kf2 {350}
> 3179 0.054 2.96 4. 1.Bh3 Kg3 2.Bf1 Kf2 {350}
> 3751 0.118 3.01 5t 1.Bh3 Kg3 2.Bf1 Kf2 3.Bh3 {350}
> 6334 0.124 3.02 5t+ 1.Bc8 Ke3
> 6560 0.125 3.36 5++ 1.Bc8 Kg3 2.c5 Kh2
> 6866 0.125 3.65 5t 1.Bc8 Kg3 2.c5 f2 3.Ba6 dxc5H {270}
> 8505 0.136 3.65 5. 1.Bc8 Kg3 2.c5 f2 3.Ba6 dxc5 {270}
> 10752 0.160 3.65 6t 1.Bc8 Kg3 2.c5 f2 3.Ba6 dxc5 4.Kxc5 {350}
> 19639 0.237 3.65 6. 1.Bc8 Kg3 2.c5 f2 3.Ba6 dxc5 4.Kxc5 {350}
> 21851 0.248 4.11 7++ 1.Bc8 Ke3 2.Kxd6 Ke4
> 32010 0.275 4.16 7t 1.Bc8 Kg3 2.c5 f2 3.Ba6 dxc5 4.d6 Kf3H {270}
> 32660 0.317 4.17 7t+ 1.Bh3 Ke5 2.c5 f2 3.cxd6 Kf6 4.d7 Ke7 5.Bf1
> {430}
> 35906 0.329 4.75 7t 1.Bh3 Ke5 2.Bf1 f2 3.Kc7 Kf6 4.Kxd6 Kf5H {430}
> 48661 0.426 4.75 7. 1.Bh3 Ke5 2.Bf1 f2 3.Kc7 Kf6 4.Kxd6 Kf5 {430}
> 51294 0.515 5.15 8++ 1.Bh3 Kg5 2.Bf1 Kg6 3.Kxd6 Kh6
> 77466 0.763 5.36 8t 1.Bh3 Kg3 2.Bf1 Kf4 3.Kxd6 f2 4.c5H Kf5H 5.c6H
> {430}
> 85210 0.852 5.37 8t+ 1.Bd3 f2 2.Kxd6 Ke3 3.Bf1 Ke4
> 119599 1.108 5.63 8t 1.Bd3 Kg5 2.Kxd6 Kf6 3.c5 Kf7 4.c6 Ke8 {430}
> 128961 1.141 5.63 8. 1.Bd3 Kg5 2.Kxd6 Kf6 3.c5 Kf7 4.c6 Ke8 {430}
> 133111 1.252 6.03 9++ 1.Bd3 f2 2.c5 Kg5 3.cxd6 Kf6 4.d7 f1=R 5.d8=Q+
> Ke5 {931}
> 180082 1.546 10.04 9t 1.Bd3 Ke3 2.c5 dxc5 3.Bb5 Kd4 4.d6 f2H 5.d7H
> c4H 6.d8=Q+H Kc3H {1191}
> 198994 1.647 10.04 9. 1.Bd3 Ke3 2.c5 dxc5 3.Bb5 Kd4 4.d6 f2 5.d7 c4
> 6.d8=Q+ Kc3 {1191}
> 214521 1.907 10.45 10++ 1.Bd3 Ke3 2.c5 Kf4 3.cxd6 Ke3 4.d7 Kd4 5.d8=Q
> Kxd3 6.Qe7 {1001}
> 250808 2.326 11.59 10t 1.Bd3 Ke3 2.c5 dxc5 3.d6 f2 4.d7 Kd2 5.d8=Q c4H
> 6.Bxc4+H Ke3H {1271}
> 287781 2.900 11.59 10. 1.Bd3 Ke3 2.c5 dxc5 3.d6 f2 4.d7 Kd2 5.d8=Q c4
> 6.Bxc4+ Ke3 {1271}
> 351932 3.788 11.80 11t 1.Bd3 Ke3 2.c5 dxc5 3.d6 f2 4.d7 Kd2 5.d8=Q c4
> 6.Bxc4+ Ke3 7.Bf1 {1271}
> 388066 4.355 11.81 11t+ 1.Bh3 Kg5 2.c5 Kg6 3.Kxd6 Kf7 4.c6 f2 5.c7 f1=N
> 6.c8=Q Nd2 7.Bf5 {1091}
> 391896 4.423 12.21 11++ 1.Bh3 Kg5 2.c5 Kh4 3.cxd6 f2 4.Bf1 Kg3H 5.d7H
> Kh2H 6.d8=QH Kg1H 7.Bh3H f1=QH 8.Bxf1H Kxf1H
> {1081}
> 643074 7.629 12.21 11t 1.Bh3 f2 2.c5 Kg3 3.Bf1 Kh2H 4.cxd6H Kh1H
> 5.Bd3H f1=QH 6.d7H {HT}
> 676614 8.554 12.21 11. 1.Bh3 f2 2.c5 Kg3 3.Bf1 Kh2 4.cxd6 Kh1 5.Bd3
> f1=Q 6.d7
> 844891 11.122 12.21 12t 1.Bh3 f2 2.c5 Kg3 3.Bf1 Kh2 4.cxd6 Kh1 5.Bd3
> Kg1 6.d7 f1=Q {-491}
> 870586 11.447 12.22 12t+ 1.Bd3 Ke3 2.c5 dxc5 3.d6 f2 4.d7 Kd2 5.d8=Q Ke1
> 6.Bc4 f1=Q 7.Bxf1 c4 {1271}
> 873590 11.464 12.64 12++ 1.Bd3 Ke3 2.c5 dxc5 3.d6 f2 4.d7 Kd2 5.d8=Q Kd1
> 6.Bc4+ Kc2 7.Qf8 Kc3H 8.Qxf2H {1271}
> 1134350 14.744 14.16 12t 1.Bd3 Ke3 2.c5 f2 3.cxd6 Kd2 4.d7 Ke3 5.d8=Q
> Kd2 6.Bb5 Kd1 7.d6 Ke1 {1351}
> 1180190 15.882 14.16 12. 1.Bd3 Ke3 2.c5 f2 3.cxd6 Kd2 4.d7 Ke3 5.d8=Q
> Kd2 6.Bb5 Kd1 7.d6 Ke1 {1351}
> 1403049 18.884 14.56 13++ 1.Bd3 Ke3 2.c5 Kf4 3.cxd6 Kg5 4.d7 Kf6 5.d8=Q+
> Ke5 6.d6 Kd4 7.Bf1 Ke3 {1351}
> 1783068 22.092 15.07 13t 1.Bd3 Ke3 2.c5 Kf4 3.cxd6 Ke3 4.d7 Kd2 5.d8=Q
> Ke3 6.Qf6 f2 7.Bc4 Ke4 8.Qxf2 {1431}
> 1999013 24.778 15.07 13. 1.Bd3 Ke3 2.c5 Kf4 3.cxd6 Ke3 4.d7 Kd2 5.d8=Q
> Ke3 6.Qf6 f2 7.Bc4 Ke4 8.Qxf2 {1431}
> 2333044 30.226 15.47 14++ 1.Bd3 Ke3 2.c5 Kd2 3.cxd6 Kc3 4.d7 Kb3 5.d8=Q
> Kb4 6.Qf8+ Ka5
> 3060007 35.615 Mat51 14t 1.Bd3 Ke3 2.c5 f2 3.cxd6 Kxd3 {EGTB} {80}
> 3509856 41.830 Mat51 14. 1.Bd3 Ke3 2.c5 f2 3.cxd6 Kxd3 {EGTB} {80}
> 3951564 44.517 Mat51 15t 1.Bd3 Ke3 2.c5 Kxd3 3.cxd6 {EGTB} {80}
> 4282625 45.677 Mat48 15t+ 1.Bh3 Kg3 2.Bf1 Kh2 3.c5 Kh1 4.cxd6 Kg1 5.Bd3
> Kf2 6.Be2 fxe2H {EGTB} {80}
> 4431140 47.533 Mat41 15t 1.Bh3 Kg3 2.Bf1 Kf2 3.c5 Kxf1 4.cxd6 {EGTB} {80}
> 4570263 50.182 Mat41 15. 1.Bh3 Kg3 2.Bf1 Kf2 3.c5 Kxf1 4.cxd6 {EGTB} {80}
> 4822065 52.905 Mat41 16t 1.Bh3 Kg3 2.Bf1 Kf2 3.c5 Kxf1 4.cxd6 {EGTB} {80}
> 5485049 58.993 Mat41 16u. 1.Bh3 Kg3 2.Bf1 Kf2 3.c5 Kxf1 4.cxd6 {EGTB}
> 4...f2 5.d7! Ke2! 6.d8=Q! f1=Q! 7.Qb6! Qh1!
> 8.Qd4! Qh3 9.d6! Qc8+! 10.Kb5! Qd7+! 11.Ka5!
> Ke1! 12.Qd5! Qd8+ 13.Kb5! Qd7+! 14.Qc6! Qf5+!
> 15.Kb6! Qf2+! 16.Qc5! Qf6 17.Qe3+! Kf1 18.Kc7!
> Qh4! 19.d7! Qh2+! 20.Kc6! Qg2+ 21.Kd6! Qg6+!
> 22.Qe6! Qg5! 23.Qe7 Qg6+ 24.Ke5! Qg3+ 25.Ke6
> Qh3+ 26.Kf7! Qh5+! 27.Kg7 Qg4+! 28.Kf8! Qd4!
> 29.d8=Q! Qh8+! 30.Kf7 Qh7+ 31.Ke8! Qh8+
> 32.Qf8+! Qxf8+! 33.Kxf8! Kf2 34.Qe8 Kg2 35.Qe2+
> Kg1 36.Kf7 Kh1 37.Kf6 Kg1 38.Kf5 Kh1 39.Kf4 Kg1
> 40.Kf3 Kh1 41.Qg2#! {1001}
>5485049 Nodes, 6.08% Leavenodes, 92978 Nodes/sec
>1493828 eval, 79.37% score, 19511157 genmoves, 1.55% captures le 387/169
>ext: pawn 68653, rcp 7308, chk 96, repchk 709, null 7675, prune 18239
>htable: 2683050 store, 0 rejected, 5467077 probe, 69.6% f/p, 141.8% f/s
>entries 24999999 age 0 renew 0
>egtb probes 16986, found 16986
>solution not found
>Huch, I found a made not in the solution
> 3 tested, 2 found, 1 mates
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