Author: leonid
Date: 08:54:50 08/16/01
Go up one level in this thread
On August 16, 2001 at 05:37:56, Uri Blass wrote: >On August 15, 2001 at 04:38:45, leonid wrote: > >>[D]1N1qq1N1/2q2r2/QqqkbbrQ/p2nn2p/P6P/1Q1BN2R/2Q2BP1/3QKR2 w - - >> >>Please indicate your result. >> >>Thanks, >>Leonid. > >Junior7 says that it is simple mate in 10 At least, this help me to confirm that this position is probably mate in 10. Junior did good work! I found by selective that this position is mate in 10 but went by brute force, by looking for shortest mate, only 8 moves. Eight by brute force took already 3 hours and 36 min. The only uncertain move is now 9. If I did no mistake in reading the time for Junior, it was 46 sec. Time look as very good for seletive search. Mine found in 14 seconds. For similar position and for similar depth time could have acceptable variation up to 10 fold. Leonid. >New position >1N1qq1N1/2q2r2/QqqkbbrQ/p2nn2p/P6P/1Q1BN2R/2Q2BP1/3QKR2 w - - 0 1 > >Analysis by Junior 7: > >1.Qxg6 Qxc2 2.Nxc2 Nxg6 > +- (4.07) Depth: 3 00:00:00 2kN >1.Qbxb6 Nxd3+ 2.Qcxd3 Q6xb6 3.Qhxg6 > +- (5.30) Depth: 3 00:00:00 10kN >1.Qbxb6 Nxd3+ 2.Qcxd3 Q6xb6 3.Qhxg6 > +- (5.30) Depth: 3 00:00:00 10kN >1.Qa3+ Qb4+ 2.Qxb4+ Nxb4 3.Qaxc6+ Nbxc6 4.Bxg6+ > +- (7.00) Depth: 3 00:00:00 14kN >1.Qxc6+ Qbxc6 2.Nxc6 Nxd3+ 3.Qbxd3 Rxh6 4.Nxd8+ > +- (8.23) Depth: 3 00:00:00 31kN >1.Qxc6+ Qcxc6 2.Qa3+ Kc7 3.Nxd5+ Kxb8 4.Qxb6+ Qcxb6 5.Bxg6 Qbd6 6.Bxf7 > +- (8.06) Depth: 6 00:00:00 308kN >1.Nxc6! > +- (8.53) Depth: 6 00:00:00 386kN >1.Qa3+! > +- (8.73) Depth: 6 00:00:00 707kN >1.Qa3+! Nb4 2.Bxg6+ Bd5 3.Nxc6 Qexc6 4.Qxb6 Ned3+ 5.Qcxd3 Q7xb6 6.Bxh5 > +- (15.17) Depth: 6 00:00:02 1739kN >1.Qa3+! > +- (15.47) Depth: 9 00:00:04 3529kN >1.Qa3+! Nb4 2.Nf5+ Bxf5 3.Be4+ Ned3+ 4.Qdxd3+ Bd4 5.Bg3+ Ke6 6.Qab3+ Qc4 7.Bxf5+ >Kd5+ 8.Qe4+ Qxe4+ 9.Qxe4+ Kc5 10.Qbxc4# > +- (#10) Depth: 9 00:00:46 33460kN > >(Blass, Tel-aviv 16.08.2001) > >goliath light and gambittiger cannot see the mate in 3 minutes > >New position >1N1qq1N1/2q2r2/QqqkbbrQ/p2nn2p/P6P/1Q1BN2R/2Q2BP1/3QKR2 w - - 0 1 > >Analysis by Goliath Light 1.5: > >1.Qa3+ Qb4+ 2.Qxb4+ Nxb4 3.Bxg6+ Ned3+ 4.Qcxd3+ Nxd3+ 5.Qdxd3+ Kc5 6.Qxh5+ Kb4 >7.Nxc6+ Qexc6 8.Qxc6 Qxc6 9.Qxd8 Bxd8 10.Bxf7 Bxh3 11.gxh3 Kxa4 > +- (20.44) Depth: 6/33 00:00:01 >1.Qa3+ Qb4+ 2.Qxb4+ Nxb4 3.Bxg6+ Ned3+ 4.Qcxd3+ Nxd3+ 5.Qdxd3+ Kc5 6.Qxh5+ Kb4 >7.Nxc6+ Qexc6 8.Qxc6 Qxc6 9.Qxd8 Bxd8 10.Bxf7 Bxh3 11.gxh3 Kxa4 > +- (20.75) Depth: 6/33 00:00:01 1409kN >1.Qa3+ Qb4+ 2.Qxb4+ Nxb4 3.Bxg6+ Ned3+ 4.Qcxd3+ Nxd3+ 5.Qdxd3+ Kc5 6.Qxh5+ Kb4 >7.Nxc6+ Qexc6 8.Qxc6 Qxc6 9.Qxd8 Bxd8 10.Bxf7 Bxh3 11.gxh3 Kxa4 > +- (21.55) Depth: 6/33 00:00:01 1427kN >1.Qa3+ Nb4 2.Bxg6+ Qd5 3.Nxd5 Qxc2 4.Qxb6+ Qxb6 5.Bxc2 > +- (23.39) Depth: 6/36 00:00:03 4516kN >1.Qa3+ Nb4 2.Bxg6+ Qd5 3.Nxd5 Qxc2 4.Qxb6+ Qxb6 5.Bxc2 > +- (23.39) Depth: 7/36 00:00:06 12415kN >1.Qa3+ Nb4 2.Bxg6+ Qd5 3.Nxd5 Qxc2 4.Qxb6+ Qxb6 5.Bxc2 > +- (23.69) Depth: 7/36 00:00:06 12531kN >1.Qa3+ Nb4 2.Bxg6+ Qd5 3.Nxd5 Qxc2 4.Qxb6+ Qxb6 5.Bxc2 > +- (24.49) Depth: 7/37 00:00:13 28347kN >1.Qa3+ Nb4 > +- (25.98) Depth: 7/40 00:00:18 35786kN >1.Qa3+ Nb4 > +- (25.98) Depth: 8/40 00:00:45 106026kN >1.Qa3+ Nb4 > +- (26.29) Depth: 8/40 00:01:09 155860kN >1.Qa3+ Nb4 > +- (27.09) Depth: 8/40 00:01:09 156182kN >1.Qa3+ Nb4 2.Nf5+ Bxf5 3.Be4+ Ned3+ 4.Qcxd3+ Bd4 5.Qxd4+ Ke6 6.Qab3+ Qdd5 >7.Qdxd5+ Qxd5 8.Bxd5+ Ke5 9.Bxb6 > +- (28.18) Depth: 8/42 00:01:44 248206kN >1.Nf5+ > +- (28.29) Depth: 8/42 00:02:31 369018kN >1.Nf5+ Bxf5 > +- (29.23) Depth: 8/42 00:02:31 369261kN > >(Blass, Tel-aviv 16.08.2001) > >New position >1N1qq1N1/2q2r2/QqqkbbrQ/p2nn2p/P6P/1Q1BN2R/2Q2BP1/3QKR2 w - - 0 1 > >Analysis by Gambit Tiger 2.0: > >1.Qa3+ Nb4 2.Bxg6+ Bd5 3.Nf5+ Ke6 4.Qxc6+ > +- (21.00) Depth: 5 00:00:00 107kN >1.Qa3+ > +- (21.90) Depth: 5 00:00:00 112kN >1.Qa3+ Nb4 2.Bxg6+ Bd5 3.Nf5+ Ke6 4.Qxc6+ Qbxc6 5.Nd4+ > +- (22.02) Depth: 5 00:00:00 246kN >1.Qa3+ Nb4 2.Nf5+ Bxf5 3.Be4+ Ned3+ 4.Qcxd3+ Bd4 5.Qxd4+ Ke6 6.Qdb3+ Qdd5 >7.Qaxb6 > +- (22.02) Depth: 6 00:00:04 1153kN >1.Nf5+ > +- (22.92) Depth: 6 00:00:13 3661kN >1.Nf5+ Bxf5 2.Qa3+ Nb4 3.Be4+ Ned3+ 4.Qdxd3+ Bd4 5.Bg3+ Qe5 6.Qxc6+ Qcxc6 >7.Qxd4+ Kc7 8.Bxe5+ > +- (27.61) Depth: 6 00:00:22 6230kN >1.Nf5+ > +- (28.51) Depth: 7 00:00:23 6362kN >1.Nf5+ Bxf5 2.Qa3+ Nb4 3.Be4+ Ned3+ 4.Q3xd3+ Bd4 5.Qxd4+ Ke6 6.Qb3+ Qc4 7.Qaxb6+ >Qxb6 8.Qdxc4+ > +- (34.55) Depth: 7 00:01:52 31799kN >1.Nf5+ > +- (35.45) Depth: 8 00:02:20 39555kN > >(Blass, Tel-aviv 16.08.2001) > >Uri
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