Author: Uri Blass
Date: 08:01:27 10/19/02
Go up one level in this thread
On October 19, 2002 at 10:20:58, Will Singleton wrote: >On October 19, 2002 at 04:40:22, Klaus Friedel wrote: > >>On October 18, 2002 at 12:10:06, Will Singleton wrote: >> >>>Adjusted position with the h7 pawn moved to h6, which prevents Ng5. >>>I would be surprised if any amateur program can find this, other >>>than Ruffian. >>> >>>[D]r1b1k2r/pp3pp1/4pb1p/2n5/3RB3/4BN2/PqP1QPPP/3R2K1 w kq - 0 1 >>> >>>r1b1k2r/pp3pp1/4pb1p/2n5/3RB3/4BN2/PqP1QPPP/3R2K1 w kq - 0 1 >>> >>>Ruffian, Athlon 1.6ghz, 34 seconds: >>> >>>8642 >first : analyze >>>11426 <first : 9 -51 276 3239593 Bc1 Qb6 Rd6 Qa5 Bd5 O-O Bc4 b5 Bd2 >>>15703 <first : 10 -67 705 8455258 Bc1 Qb6 Rd6 Qa5 Bd2 Qa4 Bd5 O-O Bb3 Nxb3 axb3 >>>17505 <first : 10 -65 885 10468898 Qc4 Nxe4 Rxe4 O-O Bd4 Bxd4 Rexd4 e5 Nxe5 Be6 >>>Qb4 Qxa2 Qxb7 Qxc2 >>>29272 <first : 11 -65 2061 24393170 Qc4 Nxe4 Rxe4 O-O Bd4 Bxd4 Rexd4 e5 Nxe5 >>>Be6 Qb4 Qxa2 Qxb7 Qxc2 >>>42721 <first : 11 -30 3407 40328029 Rd8+ >>>42731 <first : ++ >>>46577 <first : 11 2 3793 45118635 Rd8+ Bxd8 Bxc5 Bb6 Qd3 f5 Bxb7 Bxc5 Bc6+ Kf7 >>>Bxa8 Qxa2 Bc6 >>>60898 <first : 12 0 5225 62565022 Rd8+ Bxd8 Bxc5 Bb6 Bd6 Rg8 Bh7 Rh8 Be4 >>>114705 <first : 13 35 10605 127184318 Rd8+ >>>114705 <first : ++ >>>134724 <first : 13 36 12607 151303498 Rd8+ Bxd8 Bxc5 Bb6 Bd6 h5 Be5 Qb4 Bxg7 >>>Rg8 Bf6 Qa4 Bd5 Bd7 >>>255107 <first : 14 53 24646 301833440 Rd8+ Bxd8 Bxc5 Bb6 Bd6 h5 Be5 Qb4 Bxg7 >>>Rg8 Bf6 Qc5 Ne5 Bc7 Nc4 >> >>Hagrid is not that fast, but finally finds it: >>Neue Partie >>r1b1k2r/pp3pp1/4pb1p/2n5/3RB3/4BN2/PqP1QPPP/3R2K1 w kq - 0 1 >> >>Analysis by Hagrid 0.7.79: >> >>1.Le3-c1 Db2xa2 2.De2-b5+ >> ³ (-0.44) Tiefe: 1/2 00:00:00 >>1.Le3-c1 Db2xa2 2.De2-b5+ >> ³ (-0.44) Tiefe: 2/2 00:00:00 >>1.Le3-c1 Db2xa2 2.De2-b5+ Lc8-d7 3.Td4xd7 Sc5xe4 4.Db5xb7 >> ² (0.31) Tiefe: 3/4 00:00:00 >>1.Le3-c1 Db2xa2 2.De2-b5+ Lc8-d7 3.Td4xd7 Sc5xd7 >> = (0.21) Tiefe: 4/8 00:00:00 >>1.Le3-c1 Db2xa2 2.De2-b5+ Lc8-d7 3.Td4xd7 Sc5xd7 4.Td1xd7 >> = (0.11) Tiefe: 5/10 00:00:00 >>1.Le3-c1 Db2-b6 2.Td4-d6 Db6-b4 3.c2-c4 0-0 >> µ (-0.78) Tiefe: 6/12 00:00:00 141kN >>1.Le3-c1 Db2-b6 2.Td4-d6 Db6-b4 3.c2-c4 Sc5xe4 4.De2xe4 >> ³ (-0.63) Tiefe: 7/12 00:00:00 346kN >>1.Le3-c1 Db2-b6 2.Td4-d6 Db6-b4 3.Le4-f5 0-0 4.Lc1-d2 Lf6-c3 >> µ (-0.96) Tiefe: 8/16 00:00:04 2278kN >>1.Le3-c1 Db2-b6 2.Td4-d6 Db6-b4 3.Le4-d5 0-0 4.Ld5-c4 >> µ (-1.06) Tiefe: 9/18 00:00:12 7791kN >>1.De2-c4 Sc5xe4 2.Td4xe4 0-0 3.Le3-d4 Lf6xd4 4.Te4xd4 e6-e5 5.Sf3xe5 Lc8-e6 >>6.Dc4-c5 Db2xa2 >> µ (-1.08) Tiefe: 10/18 00:00:25 14702kN >>1.De2-c4 Sc5xe4 2.Td4xe4 0-0 3.Le3-d4 Lf6xd4 4.Te4xd4 b7-b6 5.c2-c3 >> µ (-1.19) Tiefe: 11/22 00:02:19 92068kN >>1.De2-c4 Sc5xe4 2.Le3-c1 Db2-b6 3.Dc4-a4+ Db6-c6 4.Da4xc6+ b7xc6 5.Td4xe4 0-0 >>6.Sf3-e5 c6-c5 7.Se5-d7 Lc8xd7 8.Td1xd7 >> µ (-1.20) Tiefe: 12/22 00:03:23 140056kN >>1.Le3-c1 Db2-b6 2.Lc1-e3 Lf6xd4 3.Le3xd4 0-0 4.De2-c4 Tf8-d8 >> µ (-1.22) Tiefe: 13/26 00:08:16 358595kN >>1.Td4-d8+ Lf6xd8 2.Le3xc5 Ld8-f6 3.De2-d3 a7-a6 4.Dd3-d6 Db2-b5 5.Sf3-d4 Db5-d7 >>6.Dd6xd7+ Lc8xd7 7.Le4xb7 Ta8-b8 8.Lb7xa6 Lf6-e5 >> µ (-1.19) Tiefe: 13/27 00:20:11 898028kN >>1.Td4-d8+ Lf6xd8 2.Le3xc5 Ld8-b6 3.Lc5-d6 Lb6-d8 4.Ld6-e5 Db2-b4 >> = (0.03) Tiefe: 14/29 00:50:00 2174568kN >>1.Td4-d8+ Lf6xd8 2.Le3xc5 Ld8-b6 3.Lc5-d6 Lb6-d8 4.Ld6-e5 Db2-b4 5.Le5xg7 Th8-g8 >>6.Lg7xh6 f7-f6 7.Le4-f5 Ke8-e7 8.Sf3-d4 Db4-b6 >> = (0.03) Tiefe: 15/33 01:30:02 4041326kN > >20 min, excellent. Hagrid looks like it's improving all the time. > >Will I think that it is also a question of evaluation. Movei does not find it in few hours but the difference between the score before Rd8+ and the score after Rd8+ if I give it 10 minutes to search is only a positional difference so I guess that a small change in the evaluation can help it to find it in less than an hour. Uri
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