Author: Eduard Nemeth
Date: 02:56:49 12/27/01
Go up one level in this thread
On December 27, 2001 at 05:27:22, Eduard Nemeth wrote: >The new Engine from Fritz 7 have an 0-0-0 Bug! > >German: Wenn man Fritz 7a im Analysemodus an Stellungen rechnen wo die "Große >Rochade" (0-0-0) möglich (possible) ist, so erkennt Fritz 7a in den allemeisten >Fällen die Möglichkeit "sofort" im nächsten Zug rochieren zu können, NICHT ! >Fritz 7a erkennt in solchen Fällen auch meist einen Zug weniger als theoretisch >möglich! > >Hier Ein Beispiel (mate in 1 Move): > > >In this Position seen Fritz 7aonly 27 possible moves, but possible are 28 (!) >moves, with 0-0-0 too! > > >Neue Partie > >[D]8/8/8/8/2p5/2pkp1N1/8/R3K2R w KQ - 0 1 > >Analysis by Fritz 7: > >1. +- (#6): 1.Td1+ Kc2 2.Th2+ e2 3.Txe2+ Kb3 4.Tb1+ Ka3 5.Tc2 Ka4 6.Ta2# >2. +- (#10): 1.Th4 Kc2 2.Th2+ Kb3 3.Tb1+ Ka3 4.Th8 Ka2 5.Tb5 >3. +- (#13): 1.Ta3 e2 2.Th4 >4. +- (#13): 1.Ta8 c2 2.Td8+ Kc3 3.Se4+ Kb2 4.Tb8+ Ka3 5.Ke2 c1D 6.Txc1 >5. +- (#13): 1.Ta7 c2 2.Td7+ Kc3 3.Se4+ Kb2 4.Tb7+ Ka3 5.0-0 c1D 6.Txc1 >6. +- (#14): 1.Th6 c2 2.Td6+ Kc3 3.Se4+ Kb2 4.Tc1 Kb3 5.Tb6+ >7. +- (#16): 1.Th7 c2 2.Td7+ Kc3 3.Se4+ Kb2 4.Tc1 e2 5.Tb7+ >8. +- (#17): 1.Th8 c2 2.Td8+ Kc3 3.Se4+ Kb2 4.Tc1 Kb3 5.Tb8+ >9. +- (12.79): 1.Se2 Ke4 2.Th4+ Kd5 3.Ta5+ Kc6 4.Txc4+ Kb6 5.Tac5 Ka6 6.Txc3 Kb6 >10. +- (12.57): 1.Th2 c2 2.Se2 Ke4 3.Th4+ Kd5 >11. +- (12.57): 1.Tf1 c2 2.Se2 Ke4 3.Tf4+ Kd5 4.Ta5+ Ke6 5.Txc4 Kd7 >12. +- (12.57): 1.Th3 c2 2.Se2 Ke4 3.Th4+ Kd5 >13. +- (12.57): 1.Th5 c2 2.Se2 Ke4 >14. +- (12.54): 1.Tg1 c2 2.Se2 Ke4 3.Tg4+ Kf3 4.Tf4+ Kg2 5.Txc4 c1D+ 6.Taxc1 Kf3 >15. +- (12.47): 1.Tc1 c2 2.Th8 Kd4 3.Se2+ Ke4 4.Th4+ Kd5 5.Txc2 >16. +- (12.44): 1.Kf1 c2 2.Se2 Ke4 3.Th4+ Kd5 4.Ta5+ Ke6 5.Txc4 Ke7 6.Txc2 >17. +- (12.38): 1.Ta2 c2 2.Se2 c1D+ 3.Sxc1+ Kc3 4.Th4 Kb4 5.Tc2 Ka5 6.Thxc4 >18. +- (12.35): 1.Ta4 c2 2.Ta3+ c3 3.Se2 c1D+ 4.Sxc1+ Ke4 5.Se2 c2 6.Tc3 >19. +- (12.35): 1.Ta5 c2 2.Ta3+ c3 3.Se2 c1D+ 4.Sxc1+ Ke4 5.Se2 c2 6.Tc3 >20. +- (12.32): 1.Kd1 c2+ 2.Kc1 c3 3.Ta8 Kd4 4.Kxc2 Ke5 5.Te8+ Kf4 6.Sh5+ >21. +- (12.07): 1.Ta6 c2 2.Ta3+ c3 3.Se2 c1D+ 4.Sxc1+ Ke4 5.Se2 c2 6.Tc3 >22. +- (12.04): 1.Tb1 c2 2.Tc1 Kc3 3.Th2 e2 4.Sxe2+ Kb2 5.Th8 Ka3 >23. +- (12.04): 1.Sf1 c2 2.Tc1 Kd4 3.Th4+ Kd3 4.Sg3 Kc3 >24. +- (11.72): 1.Sh5 c2 2.Ta3+ c3 3.Sf4+ Kc4 4.Se2 c1D+ 5.Sxc1 c2 6.Th4+ Kd5 >7.Td3+ Ke6 >25. +- (11.32): 1.Sf5 c2 2.Tc1 Ke4 3.Sg3+ Kf3 4.Sf1 e2 5.Sd2+ Kf4 >26. +- (9.94): 1.0-0 c2 2.Ta8 c3 3.Td8+ Kc4 4.Tc1 Kb3 5.Se2 Kc4 >27. +- (9.25): 1.Se4 Kxe4 2.Ke2 Kd4 3.Th4+ Kc5 4.Ta4 Kc6 5.Taxc4+ Kd5 6.Txc3 > >(Nemeth, Stuttgart 27.12.2001) An another position. BS2830-Test Nr. 13( Game Nimzowitsch-Alapin, 1911): [D]rnb1kb1r/1p3ppp/p5q1/4p3/3N4/4BB2/PPPQ1P1P/R3K2R w KQkq - 0 1 Analysis by Fritz 7: 1. ³ (-0.62): 1.Dc3 Sd7 2.Se2 Df6 3.Le4 Dh4 4.Dc4 Le7 5.Sc3 Dg4 2. ³ (-0.65): 1.Sb3 Sd7 2.Tf1 Df5 3.Le2 Sf6 4.f4 Se4 5.Da5 exf4 6.Da4+ 3. ³ (-0.68): 1.Se2 Sc6 2.Tg1 Df6 3.Le4 Lf5 4.Lg5 De6 5.Lxf5 Dxf5 6.0-0-0 Tc8 7.Le3 4. -+ (-2.46): 1.Tf1 exd4 2.0-0-0 Sc6 3.Lxd4 Dd6 4.Lxc6+ bxc6 5.Dc3 Tg8 5. -+ (-2.53): 1.De2 exd4 2.Lxd4+ Le7 3.Le4 Dh6 4.Tg1 Tg8 5.Lc5 Dxh2 6.Th1 De5 7.Lxe7 6. -+ (-2.68): 1.Ld5 exd4 2.Lxd4 Dd6 3.De3+ Le6 4.Lxe6 Dxe6 5.Dxe6+ fxe6 6.Tg1 Tg8 7.Td1 Sc6 (Nemeth, Stuttgart 27.12.2001) Fritz 7a see the best move 1. 0-0-0 on my P600 not in "6-variation-mode" in 3 minutes!
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