| commit | e68ebe618c82aa2e22016d1e9474861162914002 | |
| author | Marco Costalba <mcostalba@gmail.com> | |
| Sat, 18 Apr 2009 13:03:33 +0000 (18 14:03 +0100) | ||
| committer | Marco Costalba <mcostalba@gmail.com> | |
| Sat, 18 Apr 2009 13:04:00 +0000 (18 14:04 +0100) | ||
| tree | 58ab04508c15f98ada0e1fb18e9767254da7789a | treesnapshot (tar.gz zip) |
| parent | 4634be8ba6176e71579fa01f5fd2c74e41eedad6 | commitdiff |
In qsearch store the cut move in TT
And upon reentering the same position try it as first.
Normally qsearch moves order is already very good, first move
is the cut off in almost 90% of cases. With this patch, we get
a cut off on TT move of 98%.
Another good side effect is that we don't generate captures
and/or checks when we already have a TT move.
Unfortunatly we found a TT move only in 1% of cases. So real
impact of this patch is relatively low.
Signed-off-by: Marco Costalba <mcostalba@gmail.com>
And upon reentering the same position try it as first.
Normally qsearch moves order is already very good, first move
is the cut off in almost 90% of cases. With this patch, we get
a cut off on TT move of 98%.
Another good side effect is that we don't generate captures
and/or checks when we already have a TT move.
Unfortunatly we found a TT move only in 1% of cases. So real
impact of this patch is relatively low.
Signed-off-by: Marco Costalba <mcostalba@gmail.com>
| src/movepick.cpp | diffblobblamehistory | |
| src/movepick.h | diffblobblamehistory | |
| src/search.cpp | diffblobblamehistory |