Author: Andrew Williams
Date: 10:07:19 09/25/02
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On September 25, 2002 at 09:24:00, Eduard Nemeth wrote: >See here my german-text and Analyses. Sorry for my bad english. > >http://f50.parsimony.net/forum201226/messages/65.htm > >German: kann jemand "übersetzen/translaten", dort oder hier, sich würde das >gerne in english bringen. Aber man muss den Text verstehen um keine falschen >Analysen zu machen. > >Danke im Voraus. > >Eduard This is done with the assistance of babelfish: http://uk.altavista.com/pos/babelfish/trns It's better to play through this position up until the indicated point, as repetitions have an impact here, and it's best if your program has some information about the draws in its hash table. White has two places for its King, Kf1 or Kh1. This test is to see if White goes for the draw with Kf1 or goes for Kh1, which loses. First of all, Ruffian would not allow its King to be hunted down in this way, as it sees the draw straight away. Fritz, however, goes for Kh1, still expecting a draw. [Event "Blitz30'"] [Site "?"] [Date "2002.06.25"] [Round "?"] [White "Fritz 7.008, P600"] [Black "Nemeth,Eduard"] [ECO "C57"] [Result "0-1"] 1. Nf3 Nc6 2. e4 e5 3. Bc4 Nf6 4. Ng5 d5 5. exd5 Bg4 6. Nxf7 Qc8 7. f3 Nd4 8. Nxh8 Bxf3 9. gxf3 Qh3 10. Rf1 Qh4+ 11. Rf2 e4 12. Kf1 Bc5 13. c3 Qh3+ 14. Ke1 Nc2+ 15. Qxc2 Bxf2+ 16. Kxf2 Qxh2+ 17. Ke3 Qg1+ 18. Kf4 Qh2+ 19. Ke3 Qg1+ 20. Ke2 Qg2+ 21. Ke1 Qg3+ 22. Kf1 Qh3+ 23. Kg1 Qg3+ 24. Kh1 Qh3+ 25. Kg1 Qg3+ 26. Kh1 exf3 27. d4 f2 28. Qxf2 Qxf2 29. Nd2 O-O-O 30. Nf7 Ng4 31. Nf1 Qxf7 32. Be2 Qxd5+ 33. Kg1 Qf5 34. Be3 Qe4 35. Re1 Nxe3 36. Bf3 Qxf3 37. Rxe3 0-1 Caption: h1 is a death-trap (grave) [D]r3k2N/ppp3pp/5n2/3P4/2B1p3/2P2Pq1/PPQP4/RNB3K1 w q - 0 1 Analysis by Fritz 7.008: 24.Kh1 Dh3+ 25.Kg1 = (0.00) Tiefe: 12/41 00:00:26 9138kN 24.Kh1-- ³ (-0.44) Tiefe: 13/39 00:01:29 28560kN 24.Kh1 exf3 25.d4 f2 26.Dxf2 Dxf2 27.Sd2 Sg4 28.Sf1 Kd7 29.d6 Txh8 30.dxc7 -+ (-3.16) Tiefe: 13/43 00:03:11 60820kN 24.Kf1! = (0.00) Tiefe: 13/43 00:03:11 60820kN 24.Kf1 = (0.00) Tiefe: 14/14 00:03:11 60820kN It only dawns slowly on Fritz 7 and it sees a negative evaluation at ply 13, and the score drops to -3.16 before it switches to the only other option, Kf1, with a score of 0.00. Analysis by Ruffian 1.0.0: 24.Kh1 Dh3+ 25.Kg1 = (0.00) Tiefe: 12/31 00:00:46 19515kN 24.Kh1 ³ (-0.35) Tiefe: 13/32 00:01:10 28249kN 24.Kh1 exf3 25.d4 f2 26.Dxf2 Dxf2 27.Sd2 Sg4 28.Sf1 0-0-0 29.Sf7 Txd5 30.Sg5 Dh4+ 31.Kg1 Txg5 32.Lxg5 Dxg5 -+ (-3.59) Tiefe: 13/35 00:02:37 65292kN 24.Kf1 = (0.00) Tiefe: 13/35 00:02:37 65292kN 24.Kf1 = (0.00) Tiefe: 14/35 00:02:38 65292kN Ruffian shows similar behaviour. Again it sees the problem at depth 13 and the evaluation goes from -0.35 to -3.59 and eventually it switches to Kf1 showing a score of 0.00 in ply 13. Analysis by Chess Tiger 14.0: 24.Kh1 Dh3+ 25.Kg1 = (-0.12) Tiefe: 8 00:00:00 92kN 24.Kh1 Dh3+ 25.Kg1 = (-0.12) Tiefe: 8 00:00:00 96kN 24.Kh1 Dh3+ 25.Kg1 = (-0.12) Tiefe: 9 00:00:01 233kN 24.Kh1 Dh3+ 25.Kg1 = (-0.12) Tiefe: 10 00:00:14 2778kN 24.Kh1 Dh3+ 25.Kg1 = (-0.12) Tiefe: 11 00:00:22 4415kN Chess Tiger is hopeless here (translator's note: sorry Christophe :-)). It sticks with Kh1 for more than five minutes. Analysis by Shredder 6.02: 24.Kh1 exf3 25.d4 f2 26.De2+ Kf8 27.Df1 Df3+ 28.Dg2 Dh5+ 29.Dh2 Dxd5+ 30.Lxd5 f1D+ 31.Dg1 Dh3+ 32.Dh2 Df1+ 33.Dg1 Dh3+ 34.Dh2 Df1+ 35.Dg1 = (-0.09) Tiefe: 9/18 00:01:28 13329kN 24.Kf1 exf3 25.d4 De1+ 26.Kxe1 Sxd5 = (-0.08) Tiefe: 9/18 00:01:29 13355kN 24.Kf1 Dxf3+ = (-0.04) Tiefe: 9/18 00:01:29 13440kN 24.Kf1 Dxf3+ = (-0.04) Tiefe: 10/20 00:01:30 13560kN Shredder is fastest to see the problem and it doesn't need much depth to spot it. Analysis by Crafty 18.15: 24.Kf1 Dh3+ 25.Kf2 Dh2+ = (0.00) Tiefe: 9/23 00:00:02 482kN 24.Kf1 Dh3+ 25.Kf2 Dh2+ = (0.00) Tiefe: 10/25 00:00:04 1401kN Crafty never considers playing Kh1 Andrew PS I'm aware that there seems to be some contradiction between what Eduard says about Ruffian before the analysis and what he says afterwards when comparing Ruffian's performance with Fritz's. If anyone can enlighten me, I'd be interested to see a better translation. I think he's saying that Ruffian wouldn't have allowed itself to get into that position, but I'm not sure.
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