Author: Michel Langeveld
Date: 03:31:02 12/31/01
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On December 31, 2001 at 05:28:54, Dann Corbit wrote: >On December 31, 2001 at 05:26:11, Michel Langeveld wrote: >>I want to check how efficient Nullmover is. > >By how often you fail high on your first choice. This is with internal iterative deepening off. The following was without but WITH iterative deepening however: DATA: total nodes................................ 12230155 eval nodes................................. 8266510 QSEARCH DATA: qsearch calls.............................. 5832765 nodes generated by qsearch................. 2441207 total qsearch nodes........................ 8273972 % of nodes in qsearch...................... 19 NULLMOVE DATA: nullmove starts............................ 79077 nodes after nullmove....................... 9420739 qsearch calls after a nullmove............. 2759399 nodes generated by qsearch after a nullmove 1441173 total qsearchnodes after nullmove ......... 4200572 MOVE ORDERING: total moves played......................... 12151077 beta cutoffs............................... 1649876 times first moves was best................. 1547049 % of the firstmove beta cutoff............. 93 betaCounterNth............................. 1883882 average betaCounterNth..................... 1.142 HASH: hashRecords................................ 6010068 hashProbes................................. 9788947 hashHit.................................... 2665587 The % of the firstmove beta cutoff is higher now because I use some special algorithms with internal iterative deepening on. I used this position for test by the way. The same position as was used to count the number of nodes in QSearch: [D] rnbqkbnr/ppp2ppp/8/3pp3/3PP3/8/PPP2PPP/RNBQKBNR w KQkq - According to your numbers > 90% is ok I must be searching very deep. But get in this position 10 ply in about 200 seconds. I do use almost 12 miljoen nodes for this position and I have a hashhit % of 27,23% is this normal? Michel
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