Author: Uri Blass
Date: 11:53:13 03/03/04
Here is another position when movei failed in the arasan test suite and I suspect that everything is losing. I gave yace to learn some lines by analysis(I post a tree of some lines from the relevant position at the end of the post) Later I gave it to analyze the root positions and here is the result. The solution is supposed to be f5 but white can promote a pawn to a queen and the only question is if the knight and the pawns are strong enough to compete with the queen. New game [D]1B4k1/5p2/K5p1/7p/P4P2/5P2/8/6n1 b - - 0 1 Analysis by Yace Paderborn: 1...Nxf3 +- (5.03) Depth: 1 00:00:00 1...Kf8 ² (0.41) Depth: 1 00:00:00 1...Nh3 = (-0.22) Depth: 1 00:00:00 1...Nh3 = (-0.22) Depth: 1 00:00:00 1...Nh3 ² (0.41) Depth: 2 00:00:00 1...Nh3 2.Bd6 = (-0.07) Depth: 2 00:00:00 1...Nh3 2.Bd6 = (-0.07) Depth: 2 00:00:00 1...Nh3 ² (0.41) Depth: 3 00:00:00 1...Nh3 2.Bd6 Nf2 = (-0.20) Depth: 3 00:00:00 1...Nh3 2.Bd6 Nf2 = (-0.20) Depth: 3 00:00:00 1...Nh3 ² (0.41) Depth: 4 00:00:00 1...Nh3 2.Bd6 Nf2 3.Kb5 = (-0.11) Depth: 4 00:00:00 1...Nh3 2.Bd6 Nf2 3.Kb5 = (-0.11) Depth: 4 00:00:00 1...Nh3 ² (0.41) Depth: 5 00:00:00 1...Nh3 2.Bd6 Nf2 3.Kb5 Nd3 = (-0.21) Depth: 5 00:00:00 1...Nh3 2.Bd6 Nf2 3.Kb5 Nd3 = (-0.21) Depth: 5 00:00:00 1...Nh3 ² (0.41) Depth: 6/8 00:00:00 1kN 1...Nh3 2.Bd6 Nf2 3.Kb5 Nd3 4.Kc6 = (-0.15) Depth: 6/8 00:00:00 3kN 1...Nh3 2.Bd6 Nf2 3.Kb5 Nd3 4.Kc6 = (-0.15) Depth: 6/9 00:00:00 3kN 1...Nh3 ² (0.41) Depth: 7/9 00:00:00 3kN 1...Nh3 2.Kb5 Kf8 3.a5 Ng1 4.Bd6+ Ke8 = (-0.11) Depth: 7/9 00:00:00 14kN 1...Nh3 2.Kb5 Kf8 3.a5 Ng1 4.Bd6+ Ke8 = (-0.11) Depth: 7/11 00:00:00 14kN 1...Nh3 ² (0.41) Depth: 8/11 00:00:00 14kN 1...Nh3 2.a5 Kf8 3.Kb6 Nf2 4.Bd6+ Ke8 5.a6 = (0.25) Depth: 8/11 00:00:01 30kN 1...Nh3 2.a5 Kf8 3.Kb6 Nf2 4.Bd6+ Ke8 5.a6 = (0.25) Depth: 8/13 00:00:01 30kN 1...Nh3 2.a5 Nf2 3.Kb6 Nd3 4.a6 Nb2 5.a7 Nc4+ 6.Kc6 ² (0.46) Depth: 9/13 00:00:01 47kN 1...Kf8 2.a5 ² (0.40) Depth: 9/13 00:00:01 52kN 1...Kf8 2.a5 ² (0.41) Depth: 9/13 00:00:01 52kN 1...Kf8 2.a5 ² (0.41) Depth: 9/13 00:00:01 52kN 1...Kf8 2.a5 ² (0.41) Depth: 10/13 00:00:01 58kN 1...Kf8 2.a5 ² (0.41) Depth: 10/13 00:00:01 58kN 1...Kf8 2.a5 Nh3 3.Kb6 h4 ± (0.81) Depth: 11/13 00:00:01 157kN 1...Kf8 2.a5 Ne2 3.Kb6 h4 4.a6 g5 5.fxg5 Ke7 +- (1.81) Depth: 11/19 00:00:01 178kN 1...Kf8 2.a5 f5 3.Kb5 Nxf3 4.a6 Nd4+ 5.Kb6 Nb5 6.Kxb5 Ke7 +- (3.60) Depth: 11/19 00:00:01 321kN 1...Nh3 2.a5 g5 3.Kb6 g4 4.a6 gxf3 5.a7 f2 6.a8Q f1Q 7.f5 +- (3.59) Depth: 11/19 00:00:01 386kN 1...Nh3 2.a5 g5 3.Kb7 g4 4.fxg4 Nf2 5.gxh5 f5 6.a6 Ne4 +- (3.56) Depth: 11/19 00:00:01 440kN 1...Ne2 2.a5 Nc3 3.Be5 h4 4.Kb6 h3 5.f5 gxf5 6.Kb7 +- (3.54) Depth: 11/19 00:00:01 492kN 1...Ne2 2.a5 Nc3 3.Kb7 Nb5 4.a6 h4 5.a7 Nxa7 6.Kxa7 h3 7.Bd6 h2 8.f5 ± (1.14) Depth: 11/19 00:00:01 652kN 1...f6 2.a5 f5 3.Kb7 h4 4.a6 h3 5.a7 h2 6.a8Q h1Q 7.Kb6 ± (1.13) Depth: 11/21 00:00:02 798kN 1...f6 2.a5 f5 3.Kb7 h4 4.a6 h3 5.a7 h2 6.a8R h1Q 7.Kb6 ² (0.41) Depth: 11/21 00:00:02 835kN 1...f6 2.a5 f5 3.Kb7 h4 4.a6 h3 5.a7 h2 6.a8R h1Q 7.Kb6 ² (0.41) Depth: 11/21 00:00:02 835kN 1...f6 2.a5 f5 3.Kb7 h4 4.a6 h3 5.a7 h2 6.a8R h1Q 7.Kb6 ² (0.41) Depth: 12/21 00:00:02 1007kN 1...f6 2.a5 f5 3.Kb7 h4 4.a6 h3 5.a7 h2 6.a8R h1Q 7.Kb6 ² (0.41) Depth: 12/21 00:00:03 1007kN 1...f6 2.a5 h4 3.f5 Ne2 4.Kb6 Nc3 5.fxg6 f5 ± (0.81) Depth: 13/21 00:00:03 1228kN 1...f6 2.a5 f5 3.Kb7 h4 4.Ba7 Nxf3 5.a6 Nd2 6.Bf2 Ne4 7.Bxh4 Kf7 ± (0.92) Depth: 13/21 00:00:03 1553kN 1...f6 2.a5 f5 3.Kb7 h4 4.Ba7 Nxf3 5.a6 Nd2 6.Bf2 Ne4 7.Bxh4 Kf7 ± (0.92) Depth: 13/23 00:00:05 2441kN 1...f6 2.a5 f5 3.Kb7 h4 4.Ba7 Nxf3 5.a6 Nd2 6.Bf2 Nb1 7.Bxh4 Nc3 8.a7 Kf7 ± (1.32) Depth: 14/23 00:00:05 2745kN 1...f6 2.Kb6 f5 3.Bd6 g5 4.a5 Kg7 5.a6 Ne2 +- (2.32) Depth: 14/23 00:00:07 3682kN 1...f6 2.Kb6 f5 3.Bd6 h4 4.Bc5 Nxf3 5.Bg1 +- (2.33) Depth: 14/23 00:00:08 4086kN 1...f6 2.Kb6 f5 3.Bd6 h4 4.Bc5 Nxf3 5.Bg1 +- (2.33) Depth: 14/25 00:00:11 6180kN 1...f6 2.f5 gxf5 3.Kb7 Kg7 4.a5 Nh3 +- (2.73) Depth: 15/25 00:00:17 9303kN 1...f6 2.f5 gxf5 3.a5 f4 4.Kb7 Nxf3 5.a6 Ne5 6.Bxe5 Kf8 +- (3.73) Depth: 15/25 00:00:18 9935kN 1...f6 2.f5 gxf5 3.a5 Nxf3 4.Kb6 Nd2 5.a6 Nc4+ 6.Kc5 Nb2 7.Kd6 +- (3.77) Depth: 15/25 00:00:20 11059kN 1...Ne2 2.a5 f5 3.Kb6 h4 4.a6 h3 5.a7 h2 6.a8Q h1Q 7.Kc6 +- (3.76) Depth: 15/25 00:00:25 14392kN 1...Ne2 2.a5 f5 3.Kb6 h4 4.a6 h3 5.a7 h2 6.a8Q h1Q 7.Bd6+ Kh7 8.Qa7+ Kg8 9.Qa2+ Kh7 10.Qxe2 +- (3.41) Depth: 15/27 00:00:31 17605kN 1...Ne2 2.a5 f5 3.Kb6 h4 4.a6 h3 5.a7 h2 6.a8Q h1Q 7.Bd6+ Kh7 8.Qa7+ Kg8 9.Qa2+ Kh7 10.Qxe2 +- (3.41) Depth: 15/27 00:00:40 22654kN 1...Ne2 2.a5 f5 3.Kb6 h4 4.a6 h3 5.a7 h2 6.a8Q h1Q 7.Bd6+ Kh7 8.Qa7+ Kg8 9.Qa2+ Kh7 10.Qxe2 Qc1 +- (3.32) Depth: 16/29 00:00:56 31323kN 1...Ne2 2.a5 f5 3.Kb6 h4 4.a6 h3 5.a7 h2 6.a8Q h1Q 7.Bd6+ Kh7 8.Qa7+ Kg8 9.Qa2+ Kh7 10.Qxe2 Qc1 +- (3.32) Depth: 16/29 00:01:14 41707kN 1...Ne2 2.a5 f5 3.Kb6 h4 4.a6 h3 5.a7 h2 6.a8Q h1Q 7.Be5+ Kf7 8.Qa2+ Ke7 9.Qxe2 Qb1+ 10.Qb5 Qxb5+ +- (3.39) Depth: 17/31 00:01:46 59820kN 1...Ne2 2.a5 f5 3.Kb6 h4 4.a6 h3 5.a7 h2 6.a8Q h1Q 7.Be5+ Kf7 8.Qa2+ Ke7 9.Qxe2 Qb1+ 10.Qb5 Qxb5+ +- (3.39) Depth: 17/31 00:02:16 77990kN 1...Ne2 2.a5 f5 3.Kb5 h4 4.a6 h3 5.a7 h2 6.a8Q h1Q 7.Be5+ Kf7 8.Bd4 +- (3.38) Depth: 18/31 00:03:29 117884kN 1...Ne2 2.a5 f5 3.Kb5 h4 4.a6 h3 5.a7 h2 6.a8Q h1Q 7.Be5+ Kf7 8.Bd4 +- (3.38) Depth: 18/31 00:04:56 166337kN 1...Ne2 2.a5 f5 3.Be5 h4 4.Kb5 h3 5.a6 h2 6.a7 h1Q 7.a8Q+ Kf7 8.Qa2+ Ke8 9.Qxe2 Qb1+ 10.Kc6 +- (3.43) Depth: 19/33 00:07:58 264233kN 1...Ne2 2.a5 f5 3.Be5 h4 4.Kb5 h3 5.a6 h2 6.a7 h1Q 7.a8Q+ Kf7 8.Qa2+ Ke8 9.Qxe2 Qb1+ 10.Kc6 +- (3.43) Depth: 19/33 00:11:29 375488kN 1...Ne2 2.a5 f5 3.Be5 h4 4.Kb5 h3 5.a6 h2 6.a7 h1N +- (3.83) Depth: 20/33 00:13:59 456909kN 1...Ne2 2.a5 f5 3.Be5 h4 4.Kb6 h3 5.a6 h2 6.a7 h1N +- (4.83) Depth: 20/35 00:17:38 571942kN (Blass, Tel-Aviv 03.03.2004) [Event "40'/40"] [Site "Tel-Aviv"] [Date "????.??.??"] [Round "?"] [White "New game"] [Black "?"] [Result "*"] [SetUp "1"] [FEN "1B4k1/5p2/K5p1/7p/P4P2/5P2/8/6n1 b - - 0 1"] [PlyCount "10"] [TimeControl "40/2400:0/0:0/0"] 1... f5 (1... Nxf3 2. f5 (2. a5 f5 (2... h4 3. f5) 3. Kb6 h4 4. a6 h3 5. a7 h2 6. a8=Q h1=Q 7. Be5+ Kf7 8. Qd5+)) (1... h4 2. f5) 2. Ba7 (2. a5 h4 3. Kb6 h3 4. a6 h2 5. a7 h1=Q 6. a8=Q Qxf3 7. Qa2+ Kh7 8. Be5 Qe3+ 9. Kc6 Qe4+ 10. Kb6) 2... Nxf3 (2... Ne2 3. Bf2 Nxf4 4. a5 h4 5. Bxh4) 3. Bf2 g5 (3... h4 4. Bxh4 Nxh4 5. a5) (3... Nd2 4. Kb5 Ne4 5. a5 Nxf2 6. a6 Nd3 7. a7 Nxf4 8. a8=Q+) 4. a5 h4 5. Kb5 h3 6. Bg3 * Uri
This page took 0 seconds to execute
Last modified: Thu, 15 Apr 21 08:11:13 -0700
Current Computer Chess Club Forums at Talkchess. This site by Sean Mintz.