Author: Uri Blass
Date: 07:02:28 05/18/03
Go up one level in this thread
On May 18, 2003 at 09:05:56, Uri Blass wrote: >On May 17, 2003 at 21:39:17, Jon Dart wrote: > >>I think you could be right about this one. My latest build selects g4 at ply 13, >>and after 15 minutes has a score of +0.63. It doesn't get a better score (for >>White) if I force Kc4 and then have it search: in fact it looks like g4 is >>better. So it appears there is more than one good move here. I will remove this >>problem. >> >>--Jon > >I have another position that I have doubts about it. > >arasan3.17 > >[D]8/8/5PbP/4k1P1/8/4B1K1/8/5r2 b - - 0 1 >Bm: Rf5 > >The problem is that it seems that Ke4 is also winning > >Here is analysis of Yace after Ke4 >You can see that the score drop every iteration. > > >New game >8/8/5PbP/6P1/4k3/4B1K1/8/5r2 w - - 0 1 > >Analysis by Yace Paderborn: > >2.h7 Bxh7 > -+ (-1.75) Depth: 1 00:00:00 >2.Bc5 > ² (0.28) Depth: 1 00:00:00 >2.Bc5 > ² (0.28) Depth: 1 00:00:00 >2.Bc5 Bf7 > = (-0.05) Depth: 2 00:00:00 >2.Kg2 Bh7 > = (-0.02) Depth: 2 00:00:00 >2.Kg2 Rxf6 > ² (0.29) Depth: 2 00:00:00 >2.Kg2 Rxf6 > ² (0.29) Depth: 2 00:00:00 >2.Kg2 Rf3 3.Bc5 > = (0.20) Depth: 3 00:00:00 >2.Kg2 Rf3 3.Bc5 > = (0.20) Depth: 3 00:00:00 >2.Kg2 Rf5 3.Bd2 Bf7 > = (-0.13) Depth: 4 00:00:00 >2.Bf2 Bf7 3.Kg2 Rh1 > = (-0.12) Depth: 4 00:00:00 >2.Bf2 Bf7 3.Kg2 Rd1 > = (0.01) Depth: 4 00:00:00 >2.Bf2 Bf7 3.Kg2 Rd1 > = (0.01) Depth: 4 00:00:00 >2.Bf2 Rh1 3.Kg4 Bf7 4.Bc5 > = (-0.11) Depth: 5 00:00:00 >2.Bf2 Rh1 3.Kg4 Bf7 4.Bc5 > = (-0.11) Depth: 5 00:00:00 >2.Bf2 Rh1 3.Bc5 Ke5 4.Kg4 Bf7 > = (-0.09) Depth: 6/11 00:00:00 19kN >2.Bf2 Rh1 3.Bc5 Ke5 4.Kg4 Bf7 > = (-0.09) Depth: 6/13 00:00:00 26kN >2.Bf2 Rh1 3.Bc5 Ke5 4.Kg2 Rh5 5.Be3 > = (-0.18) Depth: 7/13 00:00:00 40kN >2.Bf2 Rh1 3.Bc5 Ke5 4.Kg2 Rh5 5.Be3 > = (-0.18) Depth: 7/14 00:00:00 85kN >2.Bf2 Rh1 3.Bc5 Bf7 4.Kf2 Kf5 5.Be3 Kg6 > ³ (-0.51) Depth: 8/14 00:00:01 133kN >2.Bf2 Rh1 3.Bc5 Bf7 4.Kf2 Kf5 5.Be3 Kg6 > ³ (-0.51) Depth: 8/20 00:00:01 233kN >2.Bf2 Rh1 3.Bc5 Bf7 4.Kf2 Ke5 5.Kf3 Rh2 6.Ke3 > ³ (-0.48) Depth: 9/20 00:00:01 316kN >2.Bf2 Rh1 3.Bc5 Bf7 4.Kf2 Ke5 5.Kf3 Rh2 6.Ke3 > ³ (-0.48) Depth: 9/20 00:00:02 382kN >2.Bf2 Rh1 3.Bc5 Bf7 4.Kf2 Kf5 5.Be3 Kg6 6.Kg2 Rh4 > ³ (-0.56) Depth: 10/20 00:00:02 618kN >2.Bf2 Rh1 3.Bc5 Bf7 4.Kf2 Kf5 5.Be3 Kg6 6.Kg2 Rh4 > ³ (-0.56) Depth: 10/23 00:00:03 722kN >2.Bf2 Bf7 3.Kg2 Rd1 4.Kg3 Kf5 5.Be3 Kg6 6.Kg4 Kh7 7.Kf5 > ³ (-0.55) Depth: 11/25 00:00:08 2421kN >2.Bf2 Bf7 3.Kg2 Rd1 4.Kg3 Kf5 5.Be3 Kg6 6.Kg4 Kh7 7.Kf5 > ³ (-0.55) Depth: 11/25 00:00:09 2676kN >2.Bf2 Kf5 3.Kg2 Rb1 4.Bd4 Ke6 5.Kf2 Kf7 6.Ke2 Bh7 7.Be5 Rg1 > µ (-0.75) Depth: 12/27 00:00:22 7070kN >2.Bf2 Kf5 3.Kg2 Rb1 4.Bd4 Ke6 5.Kf2 Kf7 6.Ke2 Bh7 7.Be5 Rg1 > µ (-0.75) Depth: 12/27 00:00:24 7353kN >2.Bf2 Rh1 3.Bc5 Bf7 4.Kf2 Ra1 5.Kg3 Ra5 6.Kg2 Rxc5 7.Kg1 > µ (-1.15) Depth: 13/29 00:00:38 12054kN >2.Bf2 Bf7 3.Kg2 Rd1 4.Kg3 Rh1 5.Bc5 Be6 6.Kf2 Rh2+ 7.Ke1 Rh5 8.h7 Kd5 9.f7 Rh1+ >10.Kd2 > -+ (-1.63) Depth: 13/32 00:01:06 22124kN >2.Bf2 Bf7 3.Kg2 Rd1 4.Kg3 Rh1 5.Bc5 Be6 6.Kf2 Rh2+ 7.Ke1 Rh5 8.h7 Kd5 9.f7 Rh1+ >10.Kd2 > -+ (-1.63) Depth: 13/32 00:01:09 22918kN >2.Bf2 Ra1 3.Kg4 Ra3 4.Be1 Rf3 > -+ (-1.69) Depth: 14/33 00:02:50 57447kN >2.Bf2 Ra1 3.Kg4 Ra3 4.Be1 Rf3 > -+ (-1.69) Depth: 14/33 00:02:54 58648kN >2.Bf2 Bf7 3.Kg2 Rd1 > -+ (-1.88) Depth: 15/34 00:06:04 123918kN >2.Bf2 Bf7 3.Kg2 Rd1 4.Bg3 Rd8 5.Kf2 Kf5 6.Bc7 Bc4 > -+ (-1.88) Depth: 15/34 00:06:16 127637kN >2.Bf2 Rh1 3.Bc5 Bf7 4.Bf2 Be6 5.Bb6 Rh5 6.f7 Bxf7 7.Bd8 Bg6 8.Bf6 > -+ (-2.14) Depth: 16/36 00:14:43 295042kN >2.Bf2 Rh1 3.Bc5 Bf7 4.Bf2 Be6 5.Bb6 Rh5 6.f7 Bxf7 7.Bd8 Bg6 8.Bf6 > -+ (-2.14) Depth: 16/36 00:15:29 308069kN >2.Bf2 Rh1 3.Bc5 Bf7 4.Bf2 Be6 5.Bb6 Rh5 6.f7 Bxf7 7.Bd8 Bg6 8.Bf6 Bh7 9.Kf2 Kf5 >10.Ke3 Rh3+ 11.Kd4 Ke6 > -+ (-2.20) Depth: 17/39 00:30:25 630708kN >2.Bf2 Rh1 3.Bc5 Bf7 4.Bf2 Be6 5.Bb6 Rh5 6.f7 Bxf7 7.Bd8 Bg6 8.Bf6 Bh7 9.Kf2 Kf5 >10.Ke3 Rh3+ 11.Kd4 Ke6 > -+ (-2.20) Depth: 17/39 00:31:36 656948kN > >(Blass, Tel-Aviv 18.05.2003) > > >Uri Another mistake: Id: arasan3.63 Fen: r4rk1/1pp3q1/2np3p/p2Npb1B/2PbN1p1/3P2P1/PP4PP/R2Q1R1K w - - 0 1 Bm: Nxc7 Movei fails high at depth 12 on Nf6+ with a high score so it seems that Nf6+ is better than the solution. 12 64 32178 66103334 d5c7 f5e4 c7e6 f8f1 d1f1 g7e7 e6d4 e5d4 d3e4 c6e5 f1f4 e7e 6 a1d1 d4d3 12 65 34058 70099675 d5f6 12 94 34787 71565917 d5f6 12 255 44405 89560102 d5f6 f8f6 e4f6 g7f6 h5g4 c6e7 g4f5 e7f5 d1g4 f6g5 g4g5 h6 g5 f1f5 a8f8 f5g5 g8h7 h2h4 f8f2 a1e1 f2b2 12 255 46808 94144185 d5f6 f8f6 e4f6 g7f6 h5g4 c6e7 g4f5 e7f5 d1g4 f6g5 g4g5 h6 g5 f1f5 a8f8 f5g5 g8h7 h2h4 f8f2 a1e1 f2b2 13 268 55344 110761845 d5f6 f8f6 e4f6 g7f6 h5g4 c6e7 g4f5 e7f5 d1g4 f6g5 g4g5 h 6g5 f1f5 a8f8 f5g5 g8h7 a1b1 f8f2 h2h4 d4b2 h1g1 13 268 59508 119133578 d5f6 f8f6 e4f6 g7f6 h5g4 c6e7 g4f5 e7f5 d1g4 f6g5 g4g5 h 6g5 f1f5 a8f8 f5g5 g8h7 a1b1 f8f2 h2h4 d4b2 h1g1 14 276 82041 163023722 d5f6 f8f6 e4f6 g7f6 h5g4 c6e7 g4f5 e7f5 d1g4 f6g5 g4g5 h 6g5 f1f5 a8f8 f5g5 g8h7 g3g4 h7h6 g5f5 f8f5 g4f5 d4b2 14 276 90053 181097253 d5f6 f8f6 e4f6 g7f6 h5g4 c6e7 g4f5 e7f5 d1g4 f6g5 g4g5 h 6g5 f1f5 a8f8 f5g5 g8h7 g3g4 h7h6 g5f5 f8f5 g4f5 d4b2 Uri
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