Author: William Kerr
Date: 16:41:51 01/29/99
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On January 28, 1999 at 13:03:20, Enrique Irazoqui wrote: >Nodes per second and ply depth at 40/120 in a typical middlegame position, on a >PII-400: > > KN/s Ply >Fritz 5.32 380 12+ >Junior 5 350 8+ >Nimzo 99a 300 11 >Hiarcs 7 35 9 >Rebel 10 140 9+ >Mchess 8 47 8+ >Shredder 3 100 11 >Genius 6 160 7+ >Tiger 11.7.5 100 11+ >Crafty 16.3 190 11+ > >Enrique The nodes per second can be misleading. Some programs count nodes as all the moves generated by the move generator. Many of these moves never get to moving pieces on the board or actualling being evaluated or scored since they are pruned out by alpha/beta, killer moves etc. Other programs only count nodes that get made on the board and evaluated (scored). This number is much lower then the above method and produces a lower nodes per second number. This represents the number of moves actually evaluated by the scoring function to determine the move to make.
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