Author: Harald Faber
Date: 07:50:25 03/03/00
Go up one level in this thread
On March 03, 2000 at 09:47:28, Ernst Walet wrote: >This is what Fritz6a produces with 3 and 4 piece endgame tablebases. Is what >you describe a problem with having incomplete 5 piece TBs? > >Ernst. It must be an engine problem. All other engines under Fritz6(-GUI) for understandable reasons don't consider Qf4. I have all 3-, 4- and 5-man TBs installed, with them Fritz6a sticks to Qf4. If I remove the Tablebase-entry from the chssbase.ini Fritz6a also does not consider Qf4. If it were a GUI-problem the other engines would have the same problem. If you get the output below maybe the handling of 5-man-TBs has some bugs? > >New position >[D]8/5p2/8/5K2/Q7/4k3/P4q2/8 w - - 0 1 > >Analysis by Fritz 6: Did you use Fritz6 or Fritz6a? Maybe this also makes a difference? >1.Ke5 Qg3+ 2.Kd5 Qf3+ 3.Ke5 > = (0.00) Depth: 2/7 00:00:00 >1.Ke5 Qg3+ 2.Kd5 Qf3+ 3.Kc5 > = (-0.19) Depth: 3/9 00:00:00 >1.Ke5 Qg3+ 2.Kd5 Qf3+ 3.Kc5 > = (-0.19) Depth: 3/9 00:00:00 >1.Ke5 Qg3+ 2.Kd5 Qg5+ 3.Kd6 f5 > ³ (-0.31) Depth: 4/11 00:00:00 2kN >1.Ke5 Qg3+ 2.Kd5 Qf3+ 3.Kc5 Qh5+ 4.Kd6 f5 > ³ (-0.31) Depth: 5/14 00:00:00 6kN >1.Ke5 Qg3+ 2.Kd5 Qg5+ 3.Kd6 Qg6+ 4.Kd5 Qe6+ > = (-0.25) Depth: 6/16 00:00:00 21kN >1.Ke5 Qg3+ 2.Kd5 Qg5+ 3.Kd6 Qf6+ 4.Kd5 Qe6+ > ³ (-0.47) Depth: 7/17 00:00:01 42kN, tb=2 >1.Ke5 Qg3+ 2.Kd5 Qg5+ 3.Kd6 Qf6+ 4.Kd7 Qe6+ 5.Kc7 f5 > ³ (-0.53) Depth: 8/20 00:00:02 96kN, tb=17 >1.Ke5 Qg3+ 2.Kd5 Qg5+ 3.Kd6 Qf6+ 4.Kd5 Qe6+ 5.Kc5 Qe5+ > ³ (-0.53) Depth: 9/23 00:00:05 267kN, tb=78 >1.Kg5 > ³ (-0.50) Depth: 9/23 00:00:07 753kN, tb=132 >1.Kg5 Qg3+ 2.Qg4 Qe5+ 3.Qf5 Kd4 4.Qxe5+ Kxe5 > = (0.00) Depth: 9/23 00:00:10 1589kN, tb=205 >1.Kg5 Qg3+ 2.Qg4 Qe5+ 3.Qf5 Kd4 4.Qxe5+ Kxe5 > = (0.00) Depth: 10/24 00:00:12 2222kN, tb=487 >1.Kg5 Qg3+ 2.Qg4 Qe5+ 3.Qf5 Kd4 4.Qxe5+ Kxe5 > = (0.00) Depth: 11/26 00:00:17 3638kN, tb=1341 >1.Kg5 Qg3+ 2.Qg4 Qe5+ 3.Qf5 Kd4 4.Qxe5+ Kxe5 > = (0.00) Depth: 12/28 00:00:26 6390kN, tb=3176 >1.Kg5 Qg3+ 2.Qg4 Qe5+ 3.Qf5 Kd4 4.Qxe5+ Kxe5 > = (0.00) Depth: 13/30 00:00:45 12637kN, tb=8267 >1.Kg5 Qg3+ 2.Qg4 Qe5+ 3.Qf5 Kd4 4.Qxe5+ Kxe5 > = (0.00) Depth: 14/33 00:01:33 28906kN, tb=19653 >1.Kg5 Qg3+ 2.Qg4 Qe5+ 3.Qf5 Kd4 4.Qxe5+ Kxe5 > = (0.00) Depth: 15/36 00:03:39 70375kN, tb=42044
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