Author: Andrew Williams
Date: 10:57:17 08/03/99
Go up one level in this thread
On August 03, 1999 at 13:41:16, Scott Gasch wrote: Hi Scott, >After some fixes, here are the numbers. However, it still does not see the >"right" move (pawn push to d6)? > The move is actually 1. e6, but mine needs to get to depth 9 to find it and see the point of it. Before it sees e6, it fiddles about with 1. f3 or 1.h3 or 1. Rae1 etc etc >1) val=0, delta=65536, score=50, nodes: 77377 > 1.1 sec -- f2f3 g4h6 >3) val=50, delta=250, score=50, nodes: 150056 > 2.1 sec -- f2f3 g4h6 g5e7 >4) val=50, delta=125, score=50, nodes: 3474041 > 50.4 sec -- f2f3 g4h6 g5e7 d7e7 > (TIMER) > > internal nodes..................................7367 > leaf nodes......................................0 > qeval nodes.....................................4095107 (2661756 cuts) > depth nodes.....................................0 > ------- This seems a very odd balance between internal nodes and qeval nodes. What sort of pruning are you doing in your qsearch? (FYI to get to depth 4, I use a total of about 4500 nodes, ~750 in the main search and ~3750 in the qsearch. > total nodes.....................................4102474 > time (sec)......................................60.10 > rate (nodes/sec)................................68258 > > positions added to hash.........................6650 > hash lookup hits................................717 (14 exact) > hash lookup misses..............................6650 > hash efficiency percentage......................9.73% > > null move successes.............................510 > null move failures..............................412 > null move success rate..........................55.31% > Attempting null move 922 times still seems low. Even at low depths, mine tries the null move in 75% of non-quiesce nodes. In what circumstances do you not use null move? > pawn hash hits..................................2061097 > pawn hash misses................................107542 > pawn hash success rate..........................95.04% Cheers Andrew
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