Author: Vincent Diepeveen
Date: 06:53:30 04/26/04
Go up one level in this thread
On April 24, 2004 at 21:42:21, Robert Hyatt wrote: >On April 24, 2004 at 18:46:45, Vincent Diepeveen wrote: > >>On April 24, 2004 at 17:42:30, Uri Blass wrote: >> >>when in analysis mode, crafty is not using a-symmetric king safety. >>In game mode it does. >> >>So please use a-symmetric king safety instead of analysis mode to see whether it >>finds it. As it uses that game mode when playing a game which is what counts. > >It finds it quickly in "game mode": Of course we all play Nxf7. Your score is not convincing though. Black is dead lost, despite what Cock de Gorter was saying. I already knew i would lose after c7-c6 against Hydra as i knew it would go attack like crazy at the kingside, which is the right plan after c6?? in opening. He found it a great plan to shuffle with c6 b6 ba6, but he's living in the 90s. When discussing it, we clearly had a difference of insight here. It's 2004 now. So i lost it. You would get crushed with black too just showing +0.43 white up here. > 10 10.11 0.23 1. Nxf7 Kxf7 2. f5 Bh4+ 3. Bf2 Bxf2+ > 4. Rxf2 exf5 5. gxf5 cxd4 6. fxg6+ > Kxg6 7. Qe6+ Kg5 8. Qf5+ Kh6 9. Nxd5 > 10-> 11.06 0.23 1. Nxf7 Kxf7 2. f5 Bh4+ 3. Bf2 Bxf2+ > 4. Rxf2 exf5 5. gxf5 cxd4 6. fxg6+ > Kxg6 7. Qe6+ Kg5 8. Qf5+ Kh6 9. Nxd5 > (s=2) > 11 13.23 0.53 1. Nxf7 Kxf7 2. f5 Bh4+ 3. Bf2 Bxf2+ > 4. Rxf2 exf5 5. gxf5 cxd4 6. fxg6+ > Kg7 7. Rf7+ Kxg6 8. Qf5+ Kh6 9. Qe6+ > Kg5 10. Qf5+ Kh6 11. Nxd5 > 11-> 16.94 0.53 1. Nxf7 Kxf7 2. f5 Bh4+ 3. Bf2 Bxf2+ > 4. Rxf2 exf5 5. gxf5 cxd4 6. fxg6+ > Kg7 7. Rf7+ Kxg6 8. Qf5+ Kh6 9. Qe6+ > Kg5 10. Qf5+ Kh6 11. Nxd5 (s=2) > 12 33.40 0.55 1. Nxf7 Kxf7 2. f5 cxd4 3. Bxd4 Nf8 > 4. O-O-O Kg8 5. f6 Bc5 6. Bxc5 bxc5 > 7. Kb1 hxg4 > 12-> 42.39 0.55 1. Nxf7 Kxf7 2. f5 cxd4 3. Bxd4 Nf8 > 4. O-O-O Kg8 5. f6 Bc5 6. Bxc5 bxc5 > 7. Kb1 hxg4 > 13 1:01 0.43 1. Nxf7 Kxf7 2. f5 cxd4 3. Bxd4 Bh4+ > 4. Kd1 hxg4 5. fxe6+ Kg8 6. Qxg4 Nf8 > 7. Rf7 Be7 8. h3 Rh5 > 13-> 1:54 0.43 1. Nxf7 Kxf7 2. f5 cxd4 3. Bxd4 Bh4+ > 4. Kd1 hxg4 5. fxe6+ Kg8 6. Qxg4 Nf8 > 7. Rf7 Be7 8. h3 Rh5 (s=2) > >> >>>On April 24, 2004 at 17:06:29, Mike Byrne wrote: >>> >>>>On April 24, 2004 at 12:51:02, Will Singleton wrote: >>>> >>>>>[D]rn1qk2r/p2nbp2/1p2p1p1/2ppP1Np/3P1PP1/P1N1B2Q/1PP4P/R3KR2 w Qkq - 0 16 >>>>> >>>>>Nxf7 is a pretty speculative move, I don't think any other chess program would >>>>>play this. Turns out to be crushing, though. Would be amazing if Hydra saw >>>>>this tactically. >>>> >>>>White(1): rn1qk2r/p2nbp2/1p2p1p1/2ppP1Np/3P1PP1/P1N1B2Q/1PP4P/R3KR2 w Qkq - 0 1 >>>> >>>>White(1): go >>>> time surplus 0.00 time limit 166:39 (166:39)/(30) >>>> time surplus 0.00 time limit 166:39 (166:39)/(30) >>>> depth time score variation (1) >>>> 1 0.00 -2.96 1. f5 Bxg5 2. Bxg5 Qxg5 3. fxe6 fxe6 >>>> 4. gxh5 >>>> 1 0.00 0.33 1. O-O-O >>>> 1-> 0.00 0.33 1. O-O-O >>>> 2 0.00 0.24 1. O-O-O c4 >>>> 2-> 0.02 0.24 1. O-O-O c4 >>>> 3 0.02 0.26 1. O-O-O Nc6 2. dxc5 Nxc5 >>>> 3-> 0.03 0.26 1. O-O-O Nc6 2. dxc5 Nxc5 (s=2) >>>> 4 0.05 0.18 1. O-O-O cxd4 2. Bxd4 Nc6 3. gxh5 Nxd4 >>>> 4. Rxd4 gxh5 >>>> 4-> 0.06 0.18 1. O-O-O cxd4 2. Bxd4 Nc6 3. gxh5 Nxd4 >>>> 4. Rxd4 gxh5 (s=2) >>>> 5 0.08 -1 1. O-O-O >>>> 5 0.08 -0.50 1. O-O-O cxd4 2. Rxd4 Nc6 3. Rdd1 Bxg5 >>>> 4. fxg5 Ndxe5 5. gxh5 gxh5 >>>> 5 0.13 -0.03 1. dxc5 bxc5 2. gxh5 Rxh5 3. Qg3 Nc6 >>>> 5-> 0.17 -0.03 1. dxc5 bxc5 2. gxh5 Rxh5 3. Qg3 Nc6 >>>> 6 0.22 -0.09 1. dxc5 bxc5 2. gxh5 Rxh5 3. Qg2 Bxg5 >>>> 4. fxg5 Nxe5 5. Bxc5 Rxg5 >>>> 6 0.42 0.12 1. Nb5 Nc6 2. dxc5 Nxc5 3. O-O-O a6 >>>> 4. Bxc5 axb5 5. Bxe7 Nxe7 6. gxh5 gxh5 >>>> 6-> 0.53 0.12 1. Nb5 Nc6 2. dxc5 Nxc5 3. O-O-O a6 >>>> 4. Bxc5 axb5 5. Bxe7 Nxe7 6. gxh5 gxh5 >>>> (s=3) >>>> 7 0.88 0.06 1. Nb5 Nc6 2. O-O-O cxd4 3. Nxd4 Nxd4 >>>> 4. Bxd4 Bxg5 5. fxg5 Qxg5+ (s=2) >>>> 7 1.14 +1 1. Nxf7!! >>>> 7 1.19 0.62 1. Nxf7 Kxf7 2. f5 Bh4+ 3. Kd2 exf5 >>>> 4. gxf5 cxd4 5. fxg6+ Kxg6 <HT> >>>> 7-> 1.19 0.62 1. Nxf7 Kxf7 2. f5 Bh4+ 3. Kd2 exf5 >>>> 4. gxf5 cxd4 5. fxg6+ Kxg6 <HT> (s=4) >>>> 8 1.30 +1 1. Nxf7!! >>>> 8 1.45 1.18 1. Nxf7 Kxf7 2. f5 Bh4+ 3. Kd2 Ke8 >>>> 4. fxe6 Nf8 5. gxh5 cxd4 (s=3) >>>> 8-> 1.61 1.18 1. Nxf7 Kxf7 2. f5 Bh4+ 3. Kd2 Ke8 >>>> 4. fxe6 Nf8 5. gxh5 cxd4 >>>> 9 2.11 1.09 1. Nxf7 Kxf7 2. f5 Bh4+ 3. Kd1 Ke8 >>>> 4. fxe6 Nf8 5. gxh5 cxd4 >>>> 9-> 2.28 1.09 1. Nxf7 Kxf7 2. f5 Bh4+ 3. Kd1 Ke8 >>>> 4. fxe6 Nf8 5. gxh5 cxd4 >>>> 10 4.22 1.25 1. Nxf7 Kxf7 2. f5 cxd4 3. fxe6+ Kg8 >>>> 4. Bxd4 Nf8 5. O-O-O Nxe6 6. Kb1 >>>> 10-> 4.80 1.25 1. Nxf7 Kxf7 2. f5 cxd4 3. fxe6+ Kg8 >>>> 4. Bxd4 Nf8 5. O-O-O Nxe6 6. Kb1 >>>> 11 10.55 0.97 1. Nxf7 Kxf7 2. f5 Bh4+ 3. Bf2 Bxf2+ >>>> 4. Rxf2 cxd4 5. fxe6+ Ke7 6. Nxd5+ >>>> Kxe6 7. Nf4+ Kxe5 8. Nxg6+ Kd6 9. Nxh8 >>>> Qxh8 10. gxh5 >>>> 11-> 15.31 0.97 1. Nxf7 Kxf7 2. f5 Bh4+ 3. Bf2 Bxf2+ >>>> 4. Rxf2 cxd4 5. fxe6+ Ke7 6. Nxd5+ >>>> Kxe6 7. Nf4+ Kxe5 8. Nxg6+ Kd6 9. Nxh8 >>>> Qxh8 10. gxh5 >>>> 12 22.22 +1 1. Nxf7!! >>>> 12 25.53 1.37 1. Nxf7 Kxf7 2. f5 Bh4+ 3. Bf2 Bxf2+ >>>> 4. Rxf2 exf5 5. gxf5 cxd4 6. fxg6+ >>>> Kg7 7. Qe6 dxc3 8. Rf7+ Kh6 9. g7+ >>>> Kg5 10. gxh8=Q Qxh8 >>>> 12-> 27.95 1.37 1. Nxf7 Kxf7 2. f5 Bh4+ 3. Bf2 Bxf2+ >>>> 4. Rxf2 exf5 5. gxf5 cxd4 6. fxg6+ >>>> Kg7 7. Qe6 dxc3 8. Rf7+ Kh6 9. g7+ >>>> Kg5 10. gxh8=Q Qxh8 >>>>? 13 45.02 1/41* 1. Nxf7 >>>>White(1): ? >>>> time=53.20 cpu=185% mat=0 n=45328093 fh=90% nps=852K >>>> ext-> chk=1736709 cap=179025 pp=128620 1rep=124260 mate=2772 >>>> predicted=0 nodes=45328093 evals=17756672 50move=0 >>>> endgame tablebase-> probes=0 hits=0 >>>> SMP-> split=598 stop=84 data=5/128 cpu=1:38 elap=53.20 >>>> >>>> >>>> >>>>White(1): Nxf7 >>>> time used: 53.20 >>>> >>>>looks pretty sound to me ... >>> >>>Which program did you use >>> >>>Crafty19.12(1 cpu) can find it but it is not so speculative like the program >>>that you used and does not see a score of more than +1 for white. >>> >>>older crafty(19.01) needs more time and finds it only with a negative score at >>>depth 11 and 0.01 score at depth 12 and it may be interesting to know what >>>changes did Bob to teach Crafty to solve it(I guess that the difference is >>>result of evaluation changes and not search changes). >>> >>> >>>Analysis under chessbase >>> >>>Hydra - Diep >>>rn1qk2r/p2nbp2/1p2p1p1/2ppP1Np/3P1PP1/P1N1B2Q/1PP4P/R3KR2 w Qkq - 0 1 >>> >>>Analysis by Crafty 19.12: >>> >>>16.0-0-0 Bxg5 17.fxg5 cxd4 18.Bxd4 Qxg5+ >>> = (0.18) Depth: 1/16 00:00:00 >>>16.0-0-0 Bxg5 17.fxg5 cxd4 18.Bxd4 Qxg5+ >>> = (0.18) Depth: 2/16 00:00:00 >>>16.0-0-0 Bxg5 17.fxg5 cxd4 18.Bxd4 Qxg5+ >>> = (0.18) Depth: 3/16 00:00:00 >>>16.0-0-0 cxd4 17.Rxd4 Nc6 18.Rdd1 Bxg5 19.fxg5 Ndxe5 20.gxh5 Rxh5 >>> ³ (-0.60) Depth: 4/16 00:00:00 >>>16.dxc5 bxc5 17.gxh5 Rxh5 18.Qg3 Nc6 >>> = (-0.25) Depth: 4/16 00:00:00 >>>16.Nf3 Nc6 17.0-0-0 c4 >>> = (-0.19) Depth: 4/16 00:00:00 >>>16.Nf3 cxd4 17.Bxd4 Nc6 18.0-0-0 Qc7 >>> = (-0.14) Depth: 5/20 00:00:00 >>>16.Nf3 cxd4 17.Nxd4 Bh4+ 18.Bf2 hxg4 19.Qxg4 Bxf2+ 20.Rxf2 Na6 >>> = (-0.14) Depth: 6/20 00:00:00 120kN >>>16.Nb5 Nc6 17.0-0-0 cxd4 18.Nxd4 Nxd4 19.Bxd4 Bxg5 20.fxg5 Qxg5+ >>> = (-0.09) Depth: 6/20 00:00:01 250kN >>>16.Nb5 a6 17.Nd6+ Bxd6 18.exd6 c4 19.0-0-0 Nf8 20.f5 Qxd6 21.fxe6 fxe6 >>> = (0.09) Depth: 7/23 00:00:02 507kN >>>16.Nb5 Nf8 17.dxc5 bxc5 18.0-0-0 a6 19.Nc3 Nbd7 20.Nf3 >>> = (0.10) Depth: 8/26 00:00:07 1884kN >>>16.Nxf7 Kxf7 17.f5 Bh4+ 18.Kd2 Nf8 19.fxe6+ Ke8 20.gxh5 cxd4 >>> ² (0.32) Depth: 8/26 00:00:09 2447kN >>>16.Nxf7 Kxf7 17.f5 Bh4+ 18.Kd1 cxd4 19.fxe6+ Kg8 20.Bxd4 Nf8 21.gxh5 Rxh5 >>> ² (0.46) Depth: 9/26 00:00:11 3143kN >>>16.Nxf7 Kxf7 17.f5 Bh4+ 18.Bf2 Bxf2+ 19.Rxf2 exf5 20.gxf5 cxd4 21.fxg6+ Kxg6 >>>22.Qe6+ Kg5 23.Rf5+ Kh4 24.Rf4+ Kg5 25.Qf5+ Kh6 26.Nxd5 >>> = (0.23) Depth: 10/30 00:00:22 6492kN >>>16.Nxf7 Kxf7 17.f5 Bh4+ 18.Bf2 Bxf2+ 19.Rxf2 exf5 20.gxf5 cxd4 21.fxg6+ Kg7 >>>22.Rf7+ Kxg6 23.Qe6+ Kg5 24.Qf5+ Kh6 25.Nxd5 >>> ² (0.53) Depth: 11/33 00:00:50 14761kN >>>16.Nxf7 Kxf7 17.f5 cxd4 18.Bxd4 Nf8 19.0-0-0 Ke8 20.f6 Bc5 21.Bxc5 bxc5 22.gxh5 >>>Rxh5 >>> ² (0.59) Depth: 12/36 00:03:01 58302kN >>> >>> >>> >>>Hydra - Diep >>>rn1qk2r/p2nbp2/1p2p1p1/2ppP1Np/3P1PP1/P1N1B2Q/1PP4P/R3KR2 w Qkq - 0 1 >>> >>>Analysis by Crafty 19.01: >>> >>>16.dxc5 Nxc5 >>> = (-0.07) Depth: 1/21 00:00:00 >>>16.dxc5 Nxc5 >>> = (-0.07) Depth: 2/21 00:00:00 >>>16.dxc5 bxc5 17.Nf3 >>> = (-0.07) Depth: 3/21 00:00:00 >>>16.dxc5 bxc5 17.gxh5 Rxh5 18.Qg3 >>> = (-0.03) Depth: 4/21 00:00:00 >>>16.dxc5 bxc5 17.gxh5 Rxh5 18.Qg3 Nc6 >>> ³ (-0.33) Depth: 5/21 00:00:00 >>>16.Nb5 cxd4 17.Bxd4 Nc6 18.Nf3 Nxd4 19.Nfxd4 >>> ³ (-0.32) Depth: 5/21 00:00:00 >>>16.Nb5 cxd4 17.Bxd4 Nc6 18.Nf3 a6 >>> ³ (-0.39) Depth: 6/22 00:00:00 64kN >>>16.Nf3 Nc6 17.dxc5 Nxc5 18.f5 exf5 19.gxf5 >>> ³ (-0.36) Depth: 6/22 00:00:00 114kN >>>16.Nf3 Nc6 17.Nb5 cxd4 18.Nfxd4 Bh4+ 19.Bf2 Nxd4 20.Nxd4 hxg4 21.Qxg4 >>> ³ (-0.42) Depth: 7/25 00:00:01 236kN >>>16.Nf3 Nc6 17.Nb5 cxd4 18.Nfxd4 Nxd4 19.Bxd4 Bh4+ 20.Bf2 Be7 >>> ³ (-0.39) Depth: 8/25 00:00:03 628kN >>>16.Nf3 Nc6 17.Ne2 cxd4 18.Bxd4 a6 19.Ng3 Nxd4 20.Nxd4 Bc5 >>> ³ (-0.53) Depth: 9/29 00:00:07 1685kN >>>16.Nb5 Nc6 17.f5 exf5 18.gxf5 Nxd4 19.Bxd4 cxd4 20.fxg6 fxg6 >>> ³ (-0.52) Depth: 9/29 00:00:10 2665kN >>>16.dxc5 bxc5 17.gxh5 Rxh5 18.Qg2 Bxg5 19.fxg5 Nc6 20.Qf2 Ndxe5 21.0-0-0 >>> ³ (-0.42) Depth: 9/29 00:00:14 4043kN >>>16.dxc5 bxc5 17.gxh5 Rxh5 18.Qg2 Bxg5 19.fxg5 Nc6 20.0-0-0 Ndxe5 21.Qe2 Nc4 >>> ³ (-0.52) Depth: 10/29 00:00:20 5930kN >>>16.Nb5 Nc6 17.f5 Nxd4 18.fxe6 fxe6 19.Nxd4 Bxg5 20.Nxe6 Bh4+ 21.Bf2 hxg4 22.Bxh4 >>>Rxh4 >>> = (-0.10) Depth: 10/29 00:00:34 10040kN >>>16.Nb5 cxd4 17.Bxd4 Nc6 18.Qc3 Rc8 19.gxh5 Nb4 20.Nxf7 Kxf7 21.hxg6+ Kxg6 >>>22.Rg1+ >>> µ (-0.73) Depth: 11/31 00:00:53 16689kN >>>16.dxc5 bxc5 17.Qg2 Bxg5 18.fxg5 Nxe5 19.gxh5 Rxh5 20.Bxc5 Rxg5 21.Qe2 Nbd7 >>>22.h4 >>> ³ (-0.44) Depth: 11/31 00:01:34 30063kN >>>16.Nf3 Nc6 17.0-0-0 Qc8 18.gxh5 Rxh5 19.Qg2 c4 20.Kb1 Qa6 21.Ng5 >>> ³ (-0.34) Depth: 11/31 00:02:17 43097kN >>>16.Nxf7 Kxf7 17.f5 Bh4+ 18.Bf2 Bxf2+ 19.Rxf2 exf5 20.gxf5 cxd4 21.fxg6+ Kxg6 >>>22.Qe6+ Kg5 23.Qf5+ Kh6 24.Nxd5 >>> = (-0.07) Depth: 11/31 00:02:42 51734kN >>>16.Nxf7 Kxf7 17.f5 cxd4 18.fxe6+ Kg8 19.Bxd4 Bh4+ 20.Bf2 Bxf2+ 21.Rxf2 Nxe5 >>>22.g5 Ng4 23.Rd2 >>> = (0.01) Depth: 12/33 00:03:09 60898kN >>> >>>Uri
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