Author: Joshua Lee
Date: 06:24:34 12/08/04
Go up one level in this thread
On December 08, 2004 at 05:02:14, Uri Blass wrote: >On December 08, 2004 at 04:28:41, Uri Blass wrote: > >>On December 08, 2004 at 01:18:40, Vincent Diepeveen wrote: >><snipped> >>>To prove Rac8 is equal to Rd3 you must prove that after Rc8 you manage to >>>advance with black. And i just don't see it happen that you can prove that. >>> >>>After Rac8 black can only shuffle and hope his extra pawn wins the game (which >>>it undoubtfully will manage in a computerish way after 90 moves). >>> >>>After Rd3 you are home with a full point before first time control. >> >>How many moves do you need to convince top programs to show at least +2 for >>black if you play Rd3 against them? >> >>Movei like Rac8 after some minutes of search >> >>depth=14 +0.84 a8c8 g3f2 f6g5 c1c2 g8h8 h2h4 g5f6 f1c1 f6e7 c2d2 a6a5 b4a5 c7a5 >>d2d8 c8d8 >>Nodes: 177716646 NPS: 536082 >>Time: 00:05:31.51 >> >>I will try to see if it can see a bigger score for black after Rd3 Nd4 >> >>score at depth 14 is only 0.55 pawns for black after these moves >> >>depth=14 +0.55 a8c8 d4c6 b7c6 c1c5 c7d8 b2b1 d3d2 f1c1 d8d3 g3e5 f6e5 c5e5 d3e2 >>c1g1 g8h8 >>Nodes: 71445489 NPS: 566084 >>Time: 00:02:06.21 >> >>Uri > >Nothing convincing for black. > >depth=16 +0.64 a8c8 d4c6 b7c6 b2c2 c7d8 b3d5 d3d4 d5c6 d4c4 c2e2 c8c6 c1c4 b5c4 >f1d1 c6d6 d1c1 d6d3 >Nodes: 1004111540 NPS: 563825 >Time: 00:29:40.89 Smith,K - Byrne,D r2r2k1/1bq2pp1/p1n1pb1p/1p2p3/1P2P3/PB3PB1/1Q2N1PP/2R2R1K b - - 0 1 Analysis by Fritz 7: 22...a6-a5! µ (-0.91) Depth: 7/23 00:00:00 134kN 22...a6-a5 23.Ne2-d4 Rd8xd4 24.Qb2xd4 e5xd4 25.Bg3xc7 a5xb4 26.a3xb4 Nc6xb4 27.Rf1-d1 µ (-0.84) Depth: 8/24 00:00:00 303kN 22...Bf6-g5! µ (-0.88) Depth: 8/24 00:00:00 348kN 22...Bf6-g5 23.Rc1-d1 Ra8-c8 24.Bg3-f2 a6-a5 25.b4xa5 Qc7xa5 26.Kh1-g1 Rd8-d2 27.Rd1xd2 Qa5xd2 µ (-0.94) Depth: 9/27 00:00:01 688kN 22...Bf6-g5 23.f3-f4 e5xf4 24.Ne2xf4 Qc7-e7 25.Nf4-h5 f7-f6 26.Rc1-d1 a6-a5 27.Rd1xd8+ Ra8xd8 28.b4xa5 Nc6xa5 29.Bb3-c2 µ (-0.81) Depth: 10/28 00:00:05 2288kN 22...a6-a5! µ (-0.84) Depth: 10/28 00:00:05 2666kN 22...a6-a5! µ (-1.00) Depth: 10/28 00:00:07 3324kN 22...a6-a5 23.Ne2-d4 Rd8xd4 24.Qb2xd4 e5xd4 25.Bg3xc7 a5xb4 26.a3xb4 Ra8-a3 27.Rc1-b1 Bf6-e7 28.Rf1-d1 Be7xb4 µ (-0.91) Depth: 11/32 00:00:19 9265kN 22...Ra8-c8! µ (-0.94) Depth: 11/32 00:00:21 10582kN 22...Ra8-c8 23.Rc1-c5 Qc7-e7 24.Kh1-g1 Bf6-g5 25.f3-f4 e5xf4 26.Bg3xf4 Qe7-f6 27.e4-e5 Qf6-g6 28.Bf4xg5 Qg6xg5 29.Qb2-c3 µ (-0.91) Depth: 12/35 00:00:42 20994kN 22...a6-a5! µ (-0.94) Depth: 12/35 00:00:47 23449kN 22...a6-a5 23.Ne2-d4 Rd8xd4 24.Qb2xd4 e5xd4 25.Bg3xc7 a5xb4 26.a3xb4 Ra8-a3 27.Rc1-b1 d4-d3 28.Bc7-d6 µ (-1.00) Depth: 12/35 00:00:52 26244kN 22...a6-a5 23.Ne2-d4 a5xb4 24.a3xb4 Qc7-d6 25.Nd4xc6 Bb7xc6 26.Bg3-f2 Bc6-e8 27.Bf2-c5 Qd6-d2 28.Qb2xd2 Rd8xd2 29.Rf1-d1 Ra8-d8 µ (-0.78) Depth: 13/34 00:01:30 46011kN 22...Qc7-d6! µ (-0.81) Depth: 13/34 00:01:56 59335kN 22...Ra8-c8! µ (-0.84) Depth: 13/34 00:02:14 68956kN 22...Ra8-c8! µ (-1.00) Depth: 13/34 00:02:49 87085kN 22...Ra8-c8 23.Bg3-f2 Bf6-e7 24.Rf1-d1 Rd8xd1+ 25.Rc1xd1 a6-a5 26.b4xa5 Nc6xa5 27.Kh1-g1 Be7-c5 28.Bb3-a2 Bc5xf2+ 29.Kg1xf2 Qc7-c5+ µ (-1.06) Depth: 14/37 00:09:16 287237kN 22...Ra8-c8 23.Bg3-f2 Bf6-e7 24.Rf1-d1 Rd8xd1+ 25.Rc1xd1 a6-a5 26.b4xa5 Nc6xa5 27.Rd1-c1 Na5-c4 28.Bb3xc4 b5xc4 29.Rc1-b1 Rc8-b8 µ (-1.06) Depth: 15/37 00:13:03 409582kN 22...Ra8-c8 23.Bg3-f2 Bf6-g5 24.Rc1-d1 Bg5-e7 25.Rd1xd8+ Rc8xd8 26.Rf1-c1 Rd8-d7 27.Kh1-g1 a6-a5 28.Ne2-c3 µ (-1.09) Depth: 16/40 00:33:12 1053608kN 22...Ra8-c8 23.Bg3-f2 Bf6-g5 24.Rc1-d1 Bg5-e7 25.Rd1-c1 a6-a5 26.Bf2-c5 Be7xc5 27.Rc1xc5 Qc7-e7 28.Bb3-d1 a5xb4 µ (-1.13) Depth: 17/43 02:01:57 3957089kN 22...Ra8-c8 23.Bg3-f2 Bf6-g5 24.Rc1-c2 a6-a5 25.a3-a4 b5xa4 26.Bb3xe6 f7xe6 27.b4-b5 Qc7-e7 28.b5xc6 Rc8xc6 µ (-1.13) Depth: 18/44 03:21:39 6575429kN 1Ghz Athlon 512MB for HT
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