Author: Uri Blass
Date: 11:49:18 02/22/02
Go up one level in this thread
On February 22, 2002 at 14:29:09, Martin Giepmans wrote: >On February 22, 2002 at 13:46:25, Uri Blass wrote: > >>On February 22, 2002 at 13:31:45, Martin Giepmans wrote: >> >>>On February 22, 2002 at 12:26:19, Jorge Pichard wrote: >>> >>>>In the 4th game between GM Van Wely Vs Rebel Century 4, if we set up the >>>>position after the 42th move and allow different programs to continue the game >>>>using the same time as was left in the actual game. How many programs can find >>>>the correct continuation to draw this game? >>>> >>>>[D]3r3k/5p1p/1p1P1P2/p7/P2RNKP1/1P6/7r/8 b - - 0 1 >>> >>> >>>I wonder if there is a draw. >>>White threatens Rc4, d7 and Rc8. >>>Passive defence (Kg8 and Rh2-h1-d1) is met with Ke4-d5-c6 >>>and/or again Rc4. >>>Looks bad. >>>What else? maybe h5!? >>> >>>Martin >> >> >>Yace without previous learning can see nothing and goes for the line Kg8 Ke5 Rc2 >>Rc4 rxc4 that is only changing the order of moves of Rebel. >> >>New game - Junior 7 >>[D]3r3k/5p1p/1p1P1P2/p7/P2RNKP1/1P6/7r/8 b - - 0 1 >> >>Analysis by Yace 0.99.56: >> >>44...Kg8 45.d7 Kf8 46.Ng5 Rh4 47.Ne4 >> ² (0.40) Depth: 6 00:00:00 >>44...Kg8 45.b4 Re2 46.bxa5 bxa5 47.Kf3 Re1 >> ² (0.36) Depth: 6 00:00:00 >>44...Kg8 45.b4 Re2 46.bxa5 bxa5 47.Kf3 Re1 >> ² (0.36) Depth: 6 00:00:00 >>44...Kg8 45.b4 Re2 46.bxa5 bxa5 47.Kf3 Re1 >> ² (0.36) Depth: 6 00:00:00 >>44...Kg8 45.b4 Re2 46.bxa5 bxa5 47.Kf3 Re1 >> ² (0.36) Depth: 6 00:00:00 >>44...Kg8 45.b4 Re2 46.bxa5 bxa5 47.Kf3 Re1 >> ² (0.36) Depth: 6 00:00:00 >>44...Kg8 45.b4 Re2 46.bxa5 bxa5 47.Kf3 Re1 >> ² (0.36) Depth: 6 00:00:00 >>44...Kg8 45.b4 Re2 46.bxa5 bxa5 47.Kf3 Re1 >> ² (0.36) Depth: 6 00:00:00 >>44...Kg8 45.b4 Re2 46.bxa5 bxa5 47.Kf3 Re1 >> ² (0.36) Depth: 6 00:00:00 >>44...Kg8 45.b4 Re2 46.bxa5 bxa5 47.Kf3 Re1 >> ² (0.36) Depth: 6 00:00:00 54kN >>44...Kg8 45.b4 Re2 46.bxa5 bxa5 47.Kf3 Re1 >> ² (0.36) Depth: 6 00:00:00 54kN >>44...Kg8 45.Rc4 Rh3 46.b4 Rd3 47.bxa5 bxa5 >> ² (0.31) Depth: 7 00:00:00 164kN >>44...Kg8 45.b4 axb4 46.Rxb4 Ra2 47.Rc4 Kf8 48.d7 h5 49.Rc8 >> ² (0.35) Depth: 8 00:00:01 441kN >>44...h5 45.Kg3 Rh1 46.Kg2 Rh4 47.Ng5 Rd7 48.Rd3 >> ² (0.34) Depth: 8 00:00:01 441kN >>44...h5 45.Kg3 Rh1 46.gxh5 Rxh5 47.d7 Kg8 48.Kg4 Re5 49.Kg3 >> = (0.20) Depth: 8 00:00:02 441kN >>44...h5 45.gxh5 Rxh5 46.Rc4 Kh7 47.Rc6 Rh4+ 48.Kg5 Rxe4 49.Rxb6 >> = (0.13) Depth: 9 00:00:06 1235kN >>44...h5 45.gxh5 Rxh5 46.Rc4 Kh7 47.Rc6 Rh4+ 48.Kf5 Rh5+ 49.Kg4 Re5 50.Kf3 Rde8 >>51.d7 Rd8 >> = (0.16) Depth: 10 00:00:13 2528kN >>44...h5 45.d7 Kh7 46.Ng5+ Kg6 47.Nf3 Rf2 48.Rd6 hxg4 49.Kxg4 Re2 50.Nh4+ Kh7 >>51.Nf5 Rh2 >> = (0.24) Depth: 11 00:00:36 7967kN >>44...h5 45.d7 Rh4 46.Nf2 hxg4 47.Nxg4 Kg8 48.Rd6 Kh8 49.Kg5 Rh1 50.Ne5 Rg1+ >>51.Kf4 Rf1+ 52.Kg4 Rg1+ 53.Kf5 >> ² (0.34) Depth: 12 00:00:54 13836kN >>44...h5 45.d7 Rh4 46.Nf2 hxg4 47.Nxg4 Kh7 48.Ke5 Kg6 49.Kd6 Kf5 50.Kc7 Rxg4 >>51.Rxg4 Rxd7+ 52.Kxd7 >> ² (0.45) Depth: 13 00:01:57 29664kN >>44...Kg8 45.b4 axb4 46.Rxb4 Ra2 47.Rxb6 Rxa4 48.Rb7 h5 49.gxh5 Rxd6 50.Rb8+ Kh7 >>51.Rb7 Rxf6+ 52.Kg3 >> ² (0.44) Depth: 13 00:02:46 39268kN >>44...Kg8 45.Ke5 Rc2 46.Rc4 Rxc4 47.bxc4 Kf8 48.c5 bxc5 49.Nxc5 Re8+ 50.Kd4 Re2 >>51.d7 Re1 52.d8Q+ Re8 >> ² (0.45) Depth: 13 00:03:12 46954kN >>44...h5 45.d7 Rh4 46.Nf2 hxg4 47.Nxg4 Kh7 48.Ke5 Kg6 49.Kd6 Kf5 50.Kc7 Rxg4 >>51.Rxg4 Rxd7+ 52.Kxd7 >> ² (0.45) Depth: 13 00:03:12 46954kN >>44...h6 45.d7 Rc2 46.Ke5 Rc7 47.Nf2 >> ² (0.44) Depth: 13 00:04:45 68435kN >>44...h6 45.Ke5 Rc2 46.Rc4 Re2 47.b4 Kg8 48.bxa5 bxa5 49.Rc7 Re8+ 50.Re7 Kf8 >>51.Kd5 >> ² (0.35) Depth: 13 00:06:40 97297kN >>44...h6 45.Nd2 Kg8 46.d7 Rf2+ 47.Nf3 Rb2 48.Nd2 >> ² (0.43) Depth: 14 00:08:14 127930kN >>44...Kg8 45.Ke5 Rc2 46.Rc4 Rxc4 47.bxc4 Kf8 48.c5 bxc5 49.Nxc5 Re8+ 50.Kf5 >> ² (0.42) Depth: 14 00:10:24 154320kN >>44...Kg8 45.Ke5 Rc2 46.Rc4 Rxc4 47.bxc4 Kf8 48.c5 bxc5 49.Nxc5 Re8+ 50.Kf4 Re2 >>51.d7 Rf2+ 52.Ke5 Rxf6 53.d8Q+ Kg7 >> ² (0.42) Depth: 14 00:10:35 156325kN >>44...Kg8 45.Ke5 Rc2 46.Rc4 Rxc4 47.bxc4 Kf8 48.c5 bxc5 49.Nxc5 Re8+ 50.Kd4 h6 >>51.d7 Rd8 52.Ke5 Kg8 53.Kf5 Kf8 >> ² (0.62) Depth: 15 00:13:59 213844kN >>44...h6 45.Nd2 >> ² (0.61) Depth: 15 00:14:58 232405kN >>44...h6 45.Nd2 h5 46.Nf3 Rh1 47.d7 hxg4 >> ² (0.51) Depth: 15 00:18:20 296222kN >>44...h6 45.Nd2 Kh7 46.d7 Re2 47.Nc4 Re6 >> ² (0.70) Depth: 16 00:31:15 521532kN >>44...Kg8 45.Ke5 Rc2 46.Rc4 Rxc4 47.bxc4 Kf8 48.d7 Rxd7 49.Ng5 >> ² (0.69) Depth: 16 00:37:40 625382kN >>44...Kg8 45.Ke5 Rc2 46.Rc4 Rxc4 47.bxc4 Kf8 48.c5 bxc5 >> ² (0.67) Depth: 16 00:42:11 687348kN >> >>(Blass, Tel-aviv 22.02.2002) > > >SpiderChess prefers h6, but is not happy. >(score is from black's viewpoint) > >05 00:00:00 - 1.19 H2-B2 D4-D3 D8-D7 G4-G5 B2-C2 >06 00:00:00 - 1.11 H2-B2 E4-D2 H8-G8 D6-D7 B2-C2 G4-G5 > 00:00:00 - 1.01 H7-H5 D6-D7 H2-H4 E4-F2 H4-H2 D4-D2 >07 00:00:00 - 1.10 H7-H5 E4-G5 H2-F2 F4-G3 F2xF6 G4xH5 H8-G7 D6-D7 > 00:00:00 - 1.07 H2-B2 D4-D3 D8-D7 G4-G5 H8-G8 F4-E5 G8-F8 >08 00:00:00 - 1.19 H2-B2 D4-D3 D8-D7 D3-C3 D7-D8 G4-G5 H8-G8 F4-E5 > 00:00:00 - 1.12 H2-C2 D4-D5 H8-G8 G4-G5 D8-D7 D5-B5 D7-B7 F4-E5 >09 00:00:02 - 1.13 H2-C2 D4-D5 H8-G8 D5-G5 G8-F8 G5-G7 H7-H6 F4-E5 C2-B2 > G7-H7 B2xB3 H7xH6 >10 00:00:05 - 1.13 H2-C2 D4-D5 H8-G8 G4-G5 C2-C1 D5-B5 C1-F1 F4-E3 F1-E1 > E3-F4 E1xE4 F4xE4 D8xD6 >11 00:00:15 - 1.13 H2-C2 D4-D5 H8-G8 G4-G5 C2-C1 D5-B5 C1-F1 F4-E3 F1-E1 > E3-F3 E1xE4 F3xE4 D8xD6 > 00:00:29 - 1.11 H7-H6 B3-B4 H2-C2 B4xA5 B6xA5 F4-E3 C2-C1 D4-D5 C1-E1 > E3-F3 E1-F1 F3-E2 F1-F4 >12 00:00:58 - 1.09 H7-H6 D4-C4 H2-B2 C4-C7 B2xB3 G4-G5 B3-B4 G5xH6 B4xA4 > C7xF7 B6-B5 F4-E5 >13 00:02:18 - 1.10 H7-H6 D4-C4 H2-B2 C4-C7 B2xB3 G4-G5 B3-B4 G5xH6 H8-H7 > C7xF7 H7xH6 F7-B7 B4xA4 B7xB6 > >If I play Rc2 in this position it finds Rc4 (instead of Rd5 in the PV) >in 30 seconds on my AMD 1200. > >Martin Yace needs a very long time to find h6 Here are the last lines of yace: New game - Junior 7 [D]3r3k/5p1p/1p1P1P2/p7/P2RNKP1/1P6/7r/8 b - - 0 1 Analysis by Yace 0.99.56: 44...Kg8 45.Ke5 Rc2 46.Rc4 Rxc4 47.bxc4 Kf8 48.c5 bxc5 49.Nxc5 Ke8 50.d7+ Rxd7 51.Nxd7 Kxd7 52.g5 Kc6 53.Kd4 Kd6 54.Ke4 Ke6 ± (0.90) Depth: 17 01:11:09 1099336kN 44...h6 45.Nd2 Kh7 46.d7 Re2 47.Nc4 Re6 48.Nxb6 ± (0.89) Depth: 17 01:17:31 1209592kN 44...h6 45.Nd2 Kh7 46.d7 Re2 47.Nc4 Re6 48.Kf5 Rc6 49.Ne5 Rc7 50.Rd6 Rb7 51.Rd3 Rc7 52.Rd5 Kg8 53.Rb5 ± (0.73) Depth: 17 01:34:37 1471520kN (Blass, Tel-aviv 22.02.2002) Uri
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