Author: Daniel Shawul
Date: 21:42:30 06/30/04
Go up one level in this thread
On June 30, 2004 at 20:58:24, Andrew Wagner wrote: >On June 30, 2004 at 20:37:25, Robert Hyatt wrote: > >>On June 30, 2004 at 20:12:06, Andrew Wagner wrote: >> >>>On June 30, 2004 at 15:13:17, Robert Hyatt wrote: >>> >>>>On June 30, 2004 at 14:19:02, Andrew Wagner wrote: >>>> >>>>>I have a single transposition table, replace-always. I count a success when I >>>>>get back a score which allows me to return immediately, without making a move. >>>>>About what percent should my success rate be? >>>> >>>> >>>>maybe 10% in middlegame or less. >>>> >>>> >>>>> >>>>>Currently, my success rate starts around 5%, then drops turn-by-turn, until it's >>>>>0, then jumps back up and starts falling again. Any suggestions what might be >>>>>causing this? I've tested all my keys with generating them from scratch, and >>>>>have no problems there. My code is modelled after the TT code on bruce morelan's >>>>>site. Any suggestions appreciated.... >>>>> >>>>>Andrew >>>> >>>> >>>> >>>> >>>> >>>> >>>>Always replace will never be as effective as an "intelligent decision" on what >>>>to replace... >>>> >>>>That's the first place to start... >>> >>>Are you saying you think it's bug-free as written? That this is normal behavior? >>>I'd like to get something simple working before doing something more >>>complicated... >> >> >>Wasn't meaning to say that at all. Your question is very difficult to answer >>remotely. IE what happens on fine 70 position??? > >Not pretty: >1. Score: .7; Time: 0; nodes: 7; PV: a1-b2 >2. Score: .6; Time: 0; nodes: 33; PV: a1-b2 a7-a6 >3. Score: .9; Time: 0; nodes: 82; PV: a1-b2 a7-a6 b2-c3 >4. Score: .8; Time: 0; nodes: 204; PV: a1-b2 a7-b6 b2-c3 b6-c7 >5. Score: .9; Time: 0; nodes: 368; PV: a1-b2 a7-b6 b2-c3 b6-c7 c3-d3 >6. Score: .8; Time: 0; nodes: 753; PV: a1-b2 a7-b6 b2-c3 b6-c7 c3-d3 c7-d7 >7. Score: .8; Time: 0; nodes: 1106; PV: a1-b2 a7-b6 b2-c3 b6-c7 c3-d3 c7-d7 d3-e >3 >8. Score: .8; Time: 0; nodes: 1476; PV: a1-b2 a7-b6 b2-c3 b6-c7 c3-d3 c7-d7 d3-e >3 d7-e7 >9. Score: .8; Time: 0; nodes: 2002; PV: a1-b2 a7-b6 b2-c3 b6-c7 c3-d3 c7-d7 d3-e >3 d7-e7 e3-d3 >10. Score: .8; Time: 0; nodes: 2636; PV: a1-b2 a7-b6 b2-c3 b6-c7 c3-d3 c7-d7 d3- >e3 d7-e7 e3-d3 e7-d7 >11. Score: .8; Time: 0; nodes: 3550; PV: a1-b2 a7-b6 b2-c3 b6-c7 c3-d3 c7-b6 d3- >e3 b6-c7 e3-d3 >12. Score: .8; Time: 0; nodes: 4389; PV: a1-b2 a7-b6 b2-c3 b6-c7 c3-d3 c7-b6 d3- >e3 b6-c7 e3-d3 >13. Score: .8; Time: 0; nodes: 5245; PV: a1-b2 a7-b6 b2-c3 b6-c7 c3-d3 c7-b6 d3- >c3 >14. Score: .8; Time: 0; nodes: 6140; PV: a1-b2 a7-b6 b2-c3 b6-c7 c3-d3 c7-b6 d3- >c3 >15. Score: .8; Time: 0; nodes: 7176; PV: a1-b2 a7-b6 b2-c3 b6-c7 c3-d3 c7-b6 d3- >c3 >16. Score: .8; Time: 0; nodes: 8305; PV: a1-b2 a7-b6 b2-c3 b6-c7 c3-d3 c7-b6 d3- >c3 >17. Score: .8; Time: 0; nodes: 9583; PV: a1-b2 a7-b6 b2-c3 b6-c7 c3-d3 c7-b6 d3- >c3 >18. Score: .8; Time: 0; nodes: 10936; PV: a1-b2 a7-b6 b2-c3 b6-c7 c3-d3 c7-b6 d3 >-c3 >19. Score: .8; Time: 0; nodes: 12461; PV: a1-b2 a7-b6 b2-c3 b6-c7 c3-d3 c7-b6 d3 >-c3 >20. Score: .8; Time: 0; nodes: 14015; PV: a1-b2 a7-b6 b2-c3 b6-c7 c3-d3 c7-b6 d3 >-c3 >21. Score: .8; Time: 0; nodes: 19565; PV: a1-b2 a7-b6 b2-c3 b6-c7 c3-d3 c7-b6 d3 >-c3 >22. Score: .8; Time: 1; nodes: 24730; PV: a1-b2 a7-b6 b2-c3 b6-c7 c3-d3 c7-b6 d3 >-e3 b6-c7 e3-f3 c7-d7 f3-g3 d7-e7 g3-h4 e7-f6 h4-g3 f6-g6 g3-f3 g6-h5 f3-e3 h5-g >6 e3-d3 g6-f6 >23. Score: .8; Time: 1; nodes: 29041; PV: a1-b2 a7-b6 b2-c3 b6-c7 c3-d3 c7-b6 d3 >-e3 b6-c7 e3-f3 c7-d7 f3-g3 d7-e7 g3-h4 e7-f6 h4-g3 f6-g6 g3-h4 g6-f6 >24. Score: .8; Time: 1; nodes: 34424; PV: a1-b2 a7-b6 b2-c3 b6-c7 c3-d3 c7-b6 d3 >-e3 b6-c7 e3-f3 c7-d7 f3-g3 d7-e7 g3-h4 e7-f6 h4-g3 f6-g6 g3-h4 g6-f6 >25. Score: .8; Time: 1; nodes: 41152; PV: a1-b2 a7-b6 b2-c3 b6-c7 c3-d3 c7-b6 d3 >-e3 b6-c7 e3-f3 c7-d7 f3-g3 d7-e7 g3-h4 e7-f6 h4-g3 f6-g6 g3-h4 g6-f6 >26. Score: .8; Time: 1; nodes: 50105; PV: a1-b2 a7-b6 b2-c3 b6-c7 c3-d3 c7-b6 d3 >-e3 b6-c7 e3-f3 c7-d7 f3-g3 d7-e7 g3-h4 e7-f6 h4-g3 f6-g6 g3-h4 g6-f6 >27. Score: .8; Time: 8; nodes: 892287; PV: a1-b2 a7-b6 b2-c3 b6-c7 c3-d3 c7-b6 d >3-e3 b6-c7 e3-f3 c7-d7 f3-g3 d7-e7 g3-h4 e7-f6 h4-g3 f6-g6 g3-h4 g6-f6 >28. Score: .8; Time: 27; nodes: 2993195; PV: a1-b2 a7-b6 b2-c3 b6-c7 c3-d3 c7-b6 > d3-e3 b6-c7 e3-f3 c7-d7 f3-g3 d7-e7 g3-h4 e7-f6 h4-g3 f6-g6 g3-h4 g6-f6 You have a bug in hash table. Best move should be Ka1-b1 starting from depth 20 or so. daniel
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