Author: Chessfun
Date: 01:12:35 03/12/00
Go up one level in this thread
On March 12, 2000 at 03:36:50, blass uri wrote: >On March 12, 2000 at 02:19:03, Chessfun wrote: > >> >>In this game Zarkov asked 3 times if I wanted to take back Fritz >>move as it wasn't the best. >> >>This was after moves: 10....Na4 17....Bd7 19.....Kd8 >> >>Fritz just don't consider 18. e6 which is the winning move. >> >>Fritz at move 23.....saw a mate in 19 therefore sacking the queen. >> >>[Event "Easter Tourney"] >>[Site "Scarb"] >>[Date "2000.03.12"] >>[Round "1"] >>[White "Zarkov 5"] >>[Black "Fritz 6a"] >>[Result "1-0"] >>[PlyCount "57"] >> >>1. e4 c5 2. c3 Nf6 3. e5 Nd5 4. d4 cxd4 5. Bc4 Qc7 6. Qe2 Nb6 7. Bd3 Nc6 8. >>Nf3 d5 9. h3 a6 10. Bf4 Na4 11. cxd4 Nb4 12. O-O Nxd3 13. Qxd3 Nxb2 14. Qb3 >>Nc4 15. Nbd2 b5 16. a4 Rb8 17. Rfc1 Bd7 18. e6 Qxf4 19. exd7+ Kd8 20. axb5 >>axb5 21. Ne5 Nxe5 22. dxe5 Qxd2 23. Qa3 Qe1+ 24. Rxe1 Kxd7 25. Qc5 d4 26. >>Qxd4+ Ke8 27. Red1 f6 28. e6 b4 29. Qd7+ 1-0 >> >>This analysis of F6 for Whites 18th move: >> >>Zarkov 5 - Fritz 6a >>[D]1r2kb1r/2qbpppp/p7/1p1pP3/P1nP1B2/1Q3N1P/3N1PP1/R1R3K1 w k - 0 1 >> >>Analysis by Fritz 6: >>18.Rab1 Rc8 19.axb5 Bxb5 20.Nxc4 Bxc4 21.Qc3 e6 22.Nd2 Be7 >> ³ (-0.62) Depth: 8/23 00:00:02 767kN >>18.axb5 >> ³ (-0.59) Depth: 8/23 00:00:03 826kN >>18.axb5 axb5 19.Rab1 Ra8 20.Ra1 Rxa1 21.Rxa1 Bc6 22.Nxc4 dxc4 >> ³ (-0.56) Depth: 8/24 00:00:03 988kN >>18.axb5 axb5 19.Rab1 Bf5 20.Nxc4 dxc4 21.Rxc4 Qd8 22.Rb2 Be6 >> ³ (-0.62) Depth: 9/25 00:00:06 1692kN >>18.axb5 axb5 19.Rab1 Bf5 20.Rb2 Qb7 21.Nxc4 dxc4 22.Rxc4 Be6 >> ³ (-0.56) Depth: 10/30 00:00:14 4213kN >>18.axb5 axb5 19.Rab1 Bf5 20.Rb2 Qb7 21.Ra2 Rc8 22.Nh4 Nxd2 >> ³ (-0.62) Depth: 11/32 00:00:46 13072kN >>18.axb5 Bxb5 19.Nxc4 dxc4 20.Qc3 e6 21.Bg5 Qd7 22.Rcb1 h6 >> ³ (-0.47) Depth: 12/33 00:03:27 58939kN >>18.e6 >> ³ (-0.44) Depth: 12/33 00:03:44 64214kN >>18.e6 Qxf4 19.exd7+ Kd8 20.axb5 axb5 >> ³ (-0.37) Depth: 12/37 00:03:56 67685kN >> >>(Bird, Scarb 12.03.2000) >> >>So it sees it after 3:27 but prior to Bd7 when it needed >>to see it who knows how long?. > >Fritz6light on p200MMX can find e6 after 45 seconds at depth 10. > >It seems that there is some weong evaluation change from Fritz6light to Fritz6. >Finding e6 is a good positional test for chess programs. > >I say positional because programs usually find e6 before they find a tactical >win. > >>Zarkov 5 sees it after 2081 nodes less than 1 second. > >Thanks. >It seems that zarkov5 has better evaluation function. >What is the evaluation of zarkov5? > >Uri First spotted at 00:00 seconds 2081 nodes. Line given is e6, Qxf4, exd7+, Kxd7, axb5. Thanks.
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