Author: Dann Corbit
Date: 11:28:01 12/15/98
I ran my modified Crafty on my 945 megabyte PGN file. I set values that I though should remove *all* moves from the output file. I have maxply set to 560 and minplayed set to 100. I just wanted to get the game and move count. Yet there are twenty five thousand positions in the resulting book!!! Here is the output: parsed 111941117 moves (1496349 games). found 0 errors during parsing. discarded 0 moves (maxply=560). discarded 74172434 moves (minplayed=100). discarded 0 moves (win/lose=0.0%). book contains 25126 unique positions. deepest book line was 549 plies. longest cluster of moves was 22. time used: 127:34 cpu 127:35 elapsed. Does anyone have any conceivable explanation as to how this could be possible? I use extract to throw out any two games with the same PGN hash also. It simply boggles my tiny little mind.
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