Author: Uri Blass
Date: 00:50:34 08/02/03
Go up one level in this thread
On August 02, 2003 at 02:39:36, Uri Blass wrote: >On August 02, 2003 at 00:01:32, Slater Wold wrote: > >>On August 01, 2003 at 23:19:51, Eelco de Groot wrote: >> >>>That looks good Slater! I didn't think that Rebel was going to find it. I don't >>>have a supercomputer, with 500MHz Celeron and with a lot less hashtables, 28 Mb, >>>after entering Bf6 gxf6 exf6 the score still was not convincing when I broke it >>>off. >>>But you are more than six times as fast! >> >>You have to see the rook trade, if you're ever going to see a 'win', and *no* >>engine I have tested will trade the rooks. They all see Rd7+, but none consider >>trading. > >Shredder7.04 fail high again and again on trading the rooks so I believe it can >find the right move from the root position if you give it enough time. > >New game >2rR4/1k3p2/2p1pP2/1pP2n1P/pP3K2/8/P4P2/8 w - - 0 1 > >Analysis by Shredder 7.04: > >3.Rxc8 Kxc8 4.Ke4 > -+ (-2.76) Depth: 1/2 00:00:00 >3.Rxc8 Kxc8 4.Ke4 > -+ (-2.72) Depth: 1/3 00:00:00 >3.Rd7+ Ka6 4.Rxf7 Nd4 5.Ke5 Nc2 6.Rg7 Nxb4 7.f7 Rf8 8.Kxe6 Nxa2 9.Rg8 Re8+ >10.fxe8Q > µ (-1.01) Depth: 1/3 00:00:00 >3.Rd7+ Ka6 4.Rxf7 Nd4 5.Ke5 Nc2 6.Rg7 Nxb4 7.f7 Rf8 8.Kxe6 Nxa2 9.Rg8 Re8+ >10.fxe8Q > µ (-1.01) Depth: 1/15 00:00:00 >3.Rd7+ Ka6 4.Rxf7 Nd4 5.Ke5 Nc2 6.Rg7 Nxb4 7.f7 Rf8 8.Kxe6 Nxa2 9.Rg8 Re8+ >10.fxe8Q > µ (-1.01) Depth: 2/15 00:00:00 >3.Rd7+ Ka6 4.Rxf7 Nd4 5.Ke5 Nc2 6.Rg7 Nxb4 7.f7 Rf8 8.Kxe6 Nxa2 9.Rg8 Re8+ >10.fxe8Q > µ (-1.01) Depth: 3/15 00:00:00 >3.Rd7+ Ka6 4.Rxf7 Nd4 5.Ke5 Nc2 6.Rg7 Nxb4 7.f7 Rf8 8.Kxe6 Nxa2 9.Rg8 Re8+ >10.fxe8Q > µ (-1.01) Depth: 4/15 00:00:00 >3.Rd7+ Ka6 4.Rxf7 Nd4 5.Ke5 Nc2 6.Rg7 Nxb4 7.f7 Rf8 8.Kxe6 Nxa2 9.Rg8 Re8+ >10.fxe8Q > µ (-1.01) Depth: 5/15 00:00:00 >3.Rd7+ Ka6 4.Rxf7 Nd4 5.Ke5 Nc2 6.Rg7 Nxb4 7.f7 Rf8 8.Kxe6 Nxa2 9.Rg8 Re8+ >10.fxe8Q > µ (-1.01) Depth: 6/15 00:00:00 >3.Rd7+ Ka6 4.Rxf7 Nd4 5.Ke5 Nc2 6.Rg7 Nxb4 7.f7 Rf8 8.Kxe6 Nxa2 9.Rg8 Re8+ >10.fxe8Q > µ (-1.01) Depth: 7/15 00:00:00 >3.Rd7+ Ka6 4.Rxf7 Nd4 5.Ke5 Nc2 6.Rg7 Nxb4 7.f7 Rf8 8.Kxe6 Nxa2 9.Rg8 Re8+ >10.fxe8Q > µ (-1.01) Depth: 8/15 00:00:00 >3.Rd7+ Ka6 4.Rxf7 Nd4 5.Ke5 Nc2 6.Rg7 Nxb4 7.f7 Rf8 8.Kxe6 Nxa2 9.Rg8 Re8+ >10.fxe8Q > µ (-1.01) Depth: 9/15 00:00:00 >3.Rd7+ Ka6 4.Rxf7 Nd4 5.Ke5 Nc2 6.Rg7 Nxb4 7.f7 Rf8 8.Kxe6 Nxa2 9.Rg8 Re8+ >10.fxe8Q > µ (-1.01) Depth: 10/15 00:00:00 >3.Rd7+ Ka6 4.Rxf7 Nd4 5.Ke5 Nc2 6.Rg7 Nxb4 7.f7 Rf8 8.Kxe6 Nxa2 9.Rg8 Re8+ >10.fxe8Q > µ (-1.01) Depth: 11/15 00:00:00 >3.Rd7+ Ka6 4.Rxf7 Nd4 5.Ke5 Nc2 6.Rg7 Nxb4 7.f7 Rf8 8.Kxe6 Nxa2 9.Rg8 Re8+ >10.fxe8Q > µ (-1.01) Depth: 12/15 00:00:00 >3.Rd7+ Ka6 4.Rxf7 Nd4 5.Ke5 Nc2 6.Rg7 Nxb4 7.f7 Rf8 8.Kxe6 Nxa2 > µ (-0.76) Depth: 13/27 00:00:01 137kN >3.Rd7+ Ka6 4.Rxf7 Nd4 5.Ke5 Nc2 6.Rg7 Nxb4 7.f7 Rf8 8.Kxe6 Nxa2 9.Rg8 Re8+ >10.fxe8Q > ³ (-0.26) Depth: 13/30 00:00:02 428kN >3.Rd7+ Ka6 4.Rxf7 Nd4 5.Ke5 Nc2 6.Rg7 Nxb4 7.a3 Nc2 8.Rg2 > ³ (-0.26) Depth: 13/30 00:00:04 812kN >3.Rd7+ Ka6 4.Rxf7 Nd4 5.Ke5 Nc2 6.Rg7 Nxb4 7.f7 Rf8 8.Kxe6 Nd5 9.Kd6 Re8 >10.fxe8Q > = (-0.01) Depth: 14/30 00:00:08 1885kN >3.Rd7+ Rc7 4.Rd8 Rc8 5.Rd7+ Rc7 6.Rd8 Rc8 > = (0.00) Depth: 14/33 00:00:11 2577kN >3.Rd7+ Rc7 4.Rd8 Rc8 5.Rd7+ Rc7 6.Rd8 Rc8 > = (0.00) Depth: 15/33 00:00:15 3573kN >3.Rd7+ Kb8 4.Rxf7 Rh8 5.Rd7 Kc8 6.Ra7 Kb8 7.Rd7 Kc8 8.Ra7 Kb8 9.Rd7 Kc8 > = (0.00) Depth: 16/34 00:00:27 6616kN >3.Rxc8 Kxc8 4.Kg5 Nd4 5.h6 Nf3+ 6.Kh5 Ne5 7.h7 Ng6 8.Kh6 Ne5 > = (0.01) Depth: 16/34 00:00:28 6773kN >3.Rxc8 Kxc8 4.Kg5 Kd7 5.a3 Nd4 6.h6 Nf3+ 7.Kh5 Ne5 8.h7 Ng6 9.Kh6 e5 10.Kg7 Ke6 >11.f3 Kd5 > = (0.13) Depth: 16/34 00:00:28 6830kN >3.Rxc8 Kxc8 4.Kg5 Kd7 5.a3 Nd4 6.Kg4 Nf5 7.Kg5 Nd4 8.Kg4 Nf5 9.Kg5 Nd4 > = (0.00) Depth: 17/34 00:00:29 7200kN >3.Rxc8 Kxc8 4.Kg5 Kd7 5.a3 Nd4 6.h6 Nf3+ 7.Kh5 Ne5 8.h7 Ng6 9.Kh6 e5 10.Kg7 Ke6 >11.f3 Kd7 > = (0.25) Depth: 18/34 00:00:33 8129kN >3.Rxc8 Kxc8 4.Kg5 Kd7 5.a3 Nd4 6.h6 Nf3+ 7.Kh5 Ne5 8.h7 Ng6 9.Kh6 e5 10.Kg7 Ke8 >11.f3 Kd8 12.Kxf7 e4 13.Kxg6 > ² (0.60) Depth: 18/34 00:00:34 8387kN >3.Rxc8 Kxc8 4.Kg5 Kd7 5.a3 Nd4 6.h6 Nf3+ 7.Kh5 Ne5 8.h7 Ng6 9.Kh6 e5 10.Kg7 Ke8 >11.f3 Kd8 12.Kxf7 e4 13.Kxg6 > ± (0.85) Depth: 19/34 00:00:40 9986kN >3.Rxc8 Kxc8 4.Kg5 Kd7 5.a3 Nd4 6.h6 Nf3+ 7.Kh5 Ne5 8.h7 Ng6 9.Kh6 e5 10.Kg7 Ke8 >11.f3 Kd8 12.Kxf7 e4 13.Kxg6 > ± (1.35) Depth: 19/34 00:00:41 10234kN >3.Rxc8 Kxc8 4.Kg5 Kd7 5.a3 Nd4 6.h6 Nf3+ 7.Kh5 Ne5 8.h7 Ng6 9.Kh6 e5 10.Kg7 Ke8 >11.f3 Kd8 12.f4 exf4 > ± (1.35) Depth: 19/34 00:00:41 10312kN >3.Rxc8 Kxc8 4.Kg5 Kd7 5.a3 Nd4 6.h6 Nf3+ 7.Kh5 Ne5 8.h7 Ng6 9.Kh6 e5 10.Kg7 Ke6 >11.f3 e4 12.fxe4 Ke5 > +- (1.55) Depth: 20/34 00:00:56 14011kN >3.Rxc8 Kxc8 4.Kg5 Kd7 5.a3 Nd4 6.h6 Nf3+ 7.Kh5 Ne5 8.h7 Ng6 9.Kh6 Kd8 10.Kg7 Ke8 > +- (1.71) Depth: 21/37 00:01:27 21550kN >3.Rxc8 Kxc8 4.Kg5 Kd7 5.a3 Nd4 6.h6 Nf3+ 7.Kh5 Ne5 8.h7 Ng6 9.Kh6 Kd8 10.Kg7 Ke8 >11.Kg8 e5 12.f3 Ne7+ 13.fxe7 Kd7 14.h8Q > +- (1.96) Depth: 22/39 00:02:24 34722kN >3.Rxc8 Kxc8 4.Kg5 Kd7 5.a3 Nd4 6.h6 Nf3+ 7.Kh5 Ne5 8.h7 Ng6 9.Kh6 Kd8 10.Kg7 e5 >11.Kxf7 Kd7 > +- (2.46) Depth: 22/39 00:02:28 35851kN >3.Rxc8 Kxc8 4.Kg5 Kd7 5.a3 Nd4 6.h6 Nf3+ 7.Kh5 Ne5 8.h7 Ng6 9.Kh6 e5 10.Kg7 e4 >11.h8R Nxh8 12.Kh7 Ke6 13.f4 Kxf6 14.Kh6 > +- (2.46) Depth: 22/39 00:02:29 36210kN > >After going back and some learning when it for some reason forgot the 2.46 > >New game >3R4/1kr2pp1/2p1p3/1pP1PnBP/pP3K2/8/P4P2/8 w - - 0 1 > >Analysis by Shredder 7.04: > >1.Rd7 Rxd7 2.h6 > -+ (-2.81) Depth: 1/2 00:00:00 >1.Rd7 Rxd7 2.h6 > -+ (-4.87) Depth: 1/3 00:00:00 >1.Rd7 Rxd7 2.h6 > -+ (-6.94) Depth: 1/3 00:00:00 >1.Ke4 Ka6 > = (0.25) Depth: 1/3 00:00:00 >1.Ke4 Ka6 > ² (0.43) Depth: 1/3 00:00:00 >1.Ke4 Ka6 > ² (0.50) Depth: 2/3 00:00:00 >1.Bf6 gxf6 2.exf6 Rc8 3.Rxc8 Kxc8 4.Kg5 > ± (1.18) Depth: 2/3 00:00:00 >1.Bf6 gxf6 2.exf6 Rc8 3.Rxc8 Kxc8 4.Kg5 > ± (1.18) Depth: 2/7 00:00:00 >1.Bf6 gxf6 2.exf6 Rc8 3.Rxc8 Kxc8 4.Kg5 > ± (1.18) Depth: 3/7 00:00:00 >1.Bf6 gxf6 2.exf6 Rc8 3.Rxc8 Kxc8 4.Kg5 > ± (1.18) Depth: 4/7 00:00:00 >1.Bf6 gxf6 2.exf6 Rc8 3.Rxc8 Kxc8 4.Kg5 > ± (1.18) Depth: 5/7 00:00:00 >1.Bf6 gxf6 2.exf6 Rc8 3.Rxc8 Kxc8 4.Kg5 > ± (1.18) Depth: 6/7 00:00:00 >1.Bf6 gxf6 2.exf6 Rc8 3.Rxc8 Kxc8 4.Kg5 > ± (1.18) Depth: 7/7 00:00:00 1kN >1.Bf6 gxf6 2.exf6 Rc8 3.Rxc8 Kxc8 4.Kg5 > ± (1.18) Depth: 8/8 00:00:00 4kN >1.Bf6 gxf6 2.exf6 Rc8 3.Rxc8 Kxc8 4.Kg5 > ± (1.18) Depth: 9/9 00:00:00 7kN >1.Bf6 gxf6 2.exf6 Rc8 3.Rxc8 Kxc8 4.Kg5 > ± (1.18) Depth: 10/10 00:00:00 10kN >1.Bf6 gxf6 2.exf6 Rc8 3.Rxc8 Kxc8 4.Kg5 > ± (1.18) Depth: 11/11 00:00:00 20kN >1.Bf6 gxf6 2.exf6 Rc8 3.Rxc8 Kxc8 4.Kg5 > ± (1.18) Depth: 12/12 00:00:00 31kN >1.Bf6 gxf6 2.exf6 Rc8 3.Rxc8 Kxc8 4.Kg5 > ± (1.18) Depth: 13/13 00:00:01 63kN >1.Bf6 gxf6 2.exf6 Rc8 3.Rxc8 Kxc8 4.Kg5 > ± (1.18) Depth: 14/14 00:00:01 118kN >1.Bf6 gxf6 2.exf6 Rc8 3.Rxc8 Kxc8 4.Kg5 > ± (1.18) Depth: 15/15 00:00:01 200kN >1.Bf6 gxf6 2.exf6 Rc8 3.Rxc8 Kxc8 4.Kg5 > ± (1.18) Depth: 16/16 00:00:02 377kN >1.Bf6 gxf6 2.exf6 Rc8 3.Rxc8 Kxc8 4.Kg5 > ± (1.18) Depth: 17/17 00:00:03 622kN >1.Bf6 gxf6 2.exf6 > ± (1.18) Depth: 18/33 00:00:09 1956kN >1.Bf6 gxf6 2.exf6 > ± (1.18) Depth: 19/33 00:00:20 4533kN >1.Bf6 gxf6 2.exf6 Nh4 3.Kg4 Ng6 4.f4 Rc8 5.Rxc8 Ne7 6.fxe7 Kxc8 7.e8Q+ Kc7 >8.Qxf7+ Kd8 9.Qxe6 a3 10.Qxc6 Ke7 11.Qxb5 > +- (1.43) Depth: 20/37 00:00:47 10908kN > >(, eim 02.08.2003) > >Uri I can add that Rxc8 is an easy move. Even my stupid movei can see a positive score for it on a slow hardware after enough time New game 2rR4/1k3p2/2p1pP2/1pP2n1P/pP3K2/8/P4P2/8 w - - 0 1 Analysis by Movei00_8_080a: 3.Rd7+ Rc7 µ (-1.35) Depth: 1 00:00:00 3.Rd7+ Ka6 4.Rxf7 ³ (-0.35) Depth: 2 00:00:00 3.Rd7+ Ka6 4.Rxf7 ³ (-0.35) Depth: 2 00:00:00 3.Rd7+ Ka6 4.Rxf7 a3 ³ (-0.54) Depth: 3 00:00:00 3.Rd7+ Ka6 4.Rxf7 a3 ³ (-0.54) Depth: 3 00:00:00 3.Rd7+ Ka6 4.Rxf7 a3 5.Ke5 ³ (-0.57) Depth: 4 00:00:00 3.Rd7+ Ka6 4.Rxf7 a3 5.Ke5 ³ (-0.57) Depth: 4 00:00:00 3.Rd7+ Kb8 4.Rxf7 Rh8 5.Kg5 a3 ³ (-0.65) Depth: 5 00:00:00 3.Rd7+ Kb8 4.Rxf7 Rh8 5.Kg5 a3 ³ (-0.65) Depth: 5 00:00:00 3.Rd7+ Kb8 4.Rxf7 Rh8 5.Kg5 Rg8+ 6.Kf4 a3 µ (-0.71) Depth: 6 00:00:00 7kN 3.Rd7+ Kb8 4.Rxf7 Rh8 5.Kg5 Rg8+ 6.Kf4 a3 µ (-0.71) Depth: 6 00:00:00 8kN 3.Rd7+ Kb8 4.Rxf7 Rd8 5.Rh7 a3 6.h6 Rd4+ 7.Ke5 Rxb4 8.Kxe6 ³ (-0.70) Depth: 7 00:00:00 24kN 3.Rd7+ Kb8 4.Rxf7 Rd8 5.Rh7 a3 6.h6 Rd4+ 7.Ke5 Rxb4 8.Kxe6 ³ (-0.70) Depth: 7 00:00:00 26kN 3.Rd7+ Kb8 4.Rxf7 Rh8 5.Kg5 Rd8 6.Rh7 Rg8+ 7.Kf4 a3 ³ (-0.58) Depth: 8 00:00:00 89kN 3.Rd7+ Kb8 4.Rxf7 Rh8 5.Kg5 Rd8 6.Rh7 Rg8+ 7.Kf4 a3 ³ (-0.58) Depth: 8 00:00:00 93kN 3.Rd7+ Kb8 4.Rxf7 Rh8 5.Rd7 Kc8 6.Ra7 Rxh5 7.f7 e5+ 8.Kxe5 Ng3+ 9.Ke6 Rh6+ 10.Ke5 ³ (-0.53) Depth: 9 00:00:01 214kN 3.Rd7+ Kb8 4.Rxf7 Rh8 5.Rd7 Kc8 6.Ra7 Rxh5 7.f7 e5+ 8.Kxe5 Ng3+ 9.Ke6 Rh6+ 10.Ke5 ³ (-0.53) Depth: 9 00:00:01 223kN 3.Rd7+ Kb8 4.Rxf7 Rd8 5.Rh7 Nd4 6.Ke5 Nc2 7.h6 a3 8.Rg7 Nxb4 9.Kxe6 ³ (-0.55) Depth: 10 00:00:04 776kN 3.Rd7+ Kb8 4.Rxf7 Rd8 5.Rh7 Nd4 6.Ke5 Nc2 7.h6 a3 8.Rg7 Nxb4 9.Kxe6 ³ (-0.55) Depth: 10 00:00:04 805kN 3.Rd7+ Ka6 4.a3 Rf8 5.Rc7 Nd4 6.h6 Nc2 7.h7 Nxa3 8.Rxf7 ³ (-0.56) Depth: 11 00:00:17 2963kN 3.Rd7+ Ka6 4.a3 Rf8 5.Rc7 Nd4 6.h6 Nc2 7.h7 Nxa3 8.Rxf7 ³ (-0.56) Depth: 11 00:00:17 3050kN 3.Rd7+ Ka6 4.Rxf7 Nd4 5.Re7 Nc2 6.f7 Rf8 7.a3 Nxa3 8.Rc7 Nc4 9.Rxc6+ Kb7 ³ (-0.61) Depth: 12 00:00:31 5418kN 3.Rxc8 ³ (-0.60) Depth: 12 00:00:31 5580kN 3.Rxc8 ³ (-0.31) Depth: 12 00:00:32 5665kN 3.Rxc8 Kxc8 4.Kg5 Kd7 5.h6 Nxh6 6.Kxh6 e5 7.Kg5 Ke6 8.a3 e4 9.Kf4 Kd5 = (-0.13) Depth: 12 00:00:33 5818kN 3.Rxc8 Kxc8 4.Kg5 Kd7 5.h6 Nxh6 6.Kxh6 e5 7.Kg5 Ke6 8.a3 e4 9.Kf4 Kd5 = (-0.13) Depth: 12 00:00:33 5886kN 3.Rxc8 Kxc8 4.Kg5 Kd7 5.h6 Nxh6 6.Kxh6 e5 7.Kh7 Kd8 8.Kg8 Ke8 9.a3 e4 10.Kg7 = (-0.05) Depth: 13 00:00:35 6285kN 3.Rxc8 Kxc8 4.Kg5 Kd7 5.h6 Nxh6 6.Kxh6 e5 7.Kh7 Kd8 8.Kg8 Ke8 9.a3 e4 10.Kg7 = (-0.05) Depth: 13 00:00:56 9978kN 3.Rxc8 Kxc8 4.Kg5 Nd4 5.Kg4 Nf5 6.Kg5 = (0.00) Depth: 14 00:01:00 10866kN 3.Rxc8 Kxc8 4.Kg5 Nd4 5.Kg4 Nf5 6.Kg5 = (0.00) Depth: 14 00:01:04 11621kN 3.Rxc8 Kxc8 4.Kg5 Nd4 5.Kg4 Nf5 6.Kg5 = (0.00) Depth: 15 00:01:11 12967kN 3.Rxc8 Kxc8 4.Kg5 Nd4 5.Kg4 Nf5 6.Kg5 = (0.00) Depth: 15 00:01:25 15414kN 3.Rxc8 Kxc8 4.Kg5 Nd4 5.Kg4 Nf5 6.Kg5 = (0.00) Depth: 16 00:01:47 20261kN 3.Rxc8 Kxc8 4.Kg5 Nd4 5.Kg4 Nf5 6.Kg5 = (0.00) Depth: 16 00:13:14 139772kN 3.Rxc8 Kxc8 4.Kg5 Nd4 5.h6 Nf3+ 6.Kh5 Ne5 7.h7 Ng6 8.Kh6 Kd7 9.Kg7 Ke8 10.a3 e5 11.f3 e4 12.fxe4 Kd7 13.h8Q Nxh8 14.Kxh8 ± (0.84) Depth: 17 00:18:46 211212kN 3.Rxc8 Kxc8 4.Kg5 Nd4 5.h6 Nf3+ 6.Kh5 Ne5 7.h7 Ng6 8.Kh6 Kd7 9.Kg7 Ke8 10.a3 e5 11.f3 e4 12.fxe4 Kd7 13.h8Q Nxh8 14.Kxh8 ± (0.84) Depth: 17 00:18:58 213340kN 3.Rxc8 Kxc8 4.Kg5 Nd4 5.h6 Nf3+ 6.Kh5 Ne5 7.h7 Ng6 8.Kh6 Kd7 9.Kg7 Ke8 10.a3 e5 11.f3 e4 12.fxe4 Kd7 13.h8Q Nxh8 14.Kxh8 ± (0.84) Depth: 18 00:21:09 238203kN 3.Rxc8 Kxc8 4.Kg5 Nd4 5.h6 Nf3+ 6.Kh5 Ne5 7.h7 Ng6 8.Kh6 Kd7 9.Kg7 Ke8 10.a3 e5 11.f3 e4 12.fxe4 Kd7 13.h8Q Nxh8 14.Kxh8 ± (0.84) Depth: 18 00:21:29 241793kN (, eim 02.08.2003) Uri
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