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Try null move before captures

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Always after TT move but before captures.

This seems a better setup against version before this
patch.

After 999 games at 1+0

Mod - Orig +252 =527 -220 +11 ELO

Unfortunatly it does not seems to improve on the standard
version, with null move outside of movepicker (595a90df) with
the latest speed-up patches added in.

After 999 games at 1+0

Mod - Standard +244 =506 -249 -2 ELO

Signed-off-by: Marco Costalba <mcostalba@gmail.com>
This commit is contained in:
Marco Costalba 2009-08-27 20:22:20 +01:00
parent 9e4befe3f1
commit ac65b14d30
1 changed files with 1 additions and 1 deletions
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2
src/movepick.cpp
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@ -45,7 +45,7 @@ namespace {
CACHE_LINE_ALIGNMENT
const MovegenPhaseT MainSearchPhaseTable[] = { PH_NULL_MOVE, PH_TT_MOVES, PH_GOOD_CAPTURES, PH_KILLERS, PH_NONCAPTURES, PH_BAD_CAPTURES, PH_STOP};
const MovegenPhaseT MainSearchNoNullPhaseTable[] = { PH_TT_MOVES, PH_GOOD_CAPTURES, PH_KILLERS, PH_NONCAPTURES, PH_BAD_CAPTURES, PH_STOP};
const MovegenPhaseT LowSearchPhaseTable[] = { PH_TT_MOVES, PH_GOOD_CAPTURES, PH_NULL_MOVE, PH_KILLERS, PH_NONCAPTURES, PH_BAD_CAPTURES, PH_STOP};
const MovegenPhaseT LowSearchPhaseTable[] = { PH_TT_MOVES, PH_NULL_MOVE, PH_GOOD_CAPTURES, PH_KILLERS, PH_NONCAPTURES, PH_BAD_CAPTURES, PH_STOP};
const MovegenPhaseT EvasionsPhaseTable[] = { PH_EVASIONS, PH_STOP};
const MovegenPhaseT QsearchWithChecksPhaseTable[] = { PH_TT_MOVES, PH_QCAPTURES, PH_QCHECKS, PH_STOP};
const MovegenPhaseT QsearchWithoutChecksPhaseTable[] = { PH_TT_MOVES, PH_QCAPTURES, PH_STOP};