Author: Enrique Irazoqui
Date: 03:51:09 06/11/00
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On June 11, 2000 at 05:12:03, Vincent Setterholm wrote: >On June 11, 2000 at 03:44:10, Vincent Setterholm wrote: > >>I was running Chessbase 7 with Fritz 6a running analysis. I have the Endgame >>Turbo CD's installed on my harddrive. I ran into a three piece endgame position >>where Fritz gave really messed up analysis. >> >>Black king on c1. White king on C3. White rook on a5. White to move. Ra1 is >>mate. >> >>Fritz called that position a mate in three. The move before this one Fritz >>correctly called a mate in 2, but once the proper moves were made, its analysis >>got all goofy. >> >>When I go directly into Fritz (not in Chessbase) I cannot duplicate this >>problem. It sees Ra1 right away. >> >>Any ideas as to what is going on? >> >>Thanks! > >I was incorrect when I stated that Fritz called the above position Mate in 3. >It calls the possition a mate in 2, when if you follow it's suggested move, it >is actually a mate in 3. > >But it gets worse. The following is a transcript of a variation I played out, >following Fritz's best reccommendation for moves: > >1. Rb5 Kd1. >2. Re5 Kc1. >3. Rd5 Kb1. >4. Ra5 Kc1. >5. Rb5 Kd1. >6. Re5 Kc1. >7. Rd5 Kb1. >8. Ra5 Kc1. >9. Rb5 Kd1. >10. Re5 Kc1. >11. Rd5 Kb1. >12. Ra5 Kc1. >13. Rb5 Kd1. >14. Re5 Kc1. >15. Rd5 Kb1. >16. Ra5 Kc1. > >Fritz NEVER went in for the kill. It just kept seeing mates 2 moves out. > >Black can draw by threefold repetition or by the 50 move rule! > >Anyone have ideas as to what's happening here? > >>Vince. With your same setup (CB7, Turbo CDs and F6a), I can't reproduce your problem. I get +-(Mate in 1) 1.Ra1# (0:00:00) depth 2/2. Enrique
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