kate/BadFish
1
0
Fork 0
mirror of https://github.com/sockspls/badfish synced 2025-04-30 08:43:09 +00:00
Code Issues Releases Wiki Activity

Order check moves used in qsearch

Browse source 
Use the same scoring system used for evasions. Small if any
increase, but should be in at least for completeness.

After 999 games at 1+0
Mod vs Orig +208 =601 -190 +6 ELO

Signed-off-by: Marco Costalba <mcostalba@gmail.com>
This commit is contained in:
Marco Costalba 2010-01-17 14:55:53 +01:00
parent 0edad63b44
commit 66d5c13a88
2 changed files with 8 additions and 4 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

10
src/movepick.cpp
View file

@ -141,7 +141,7 @@ void MovePicker::go_next_phase() {
case PH_EVASIONS:
assert(pos.is_check());
lastMove = generate_evasions(pos, moves);
score_evasions();
score_evasions_or_checks();
return;
case PH_QCAPTURES:
@ -150,8 +150,8 @@ void MovePicker::go_next_phase() {
return;
case PH_QCHECKS:
// Perhaps we should order moves move here? FIXME
lastMove = generate_non_capture_checks(pos, moves);
score_evasions_or_checks();
return;
case PH_STOP:
@ -224,7 +224,7 @@ void MovePicker::score_noncaptures() {
}
}
void MovePicker::score_evasions() {
void MovePicker::score_evasions_or_checks() {
// Try good captures ordered by MVV/LVA, then non-captures if
// destination square is not under attack, ordered by history
// value, and at the end bad-captures and non-captures with a
@ -232,6 +232,10 @@ void MovePicker::score_evasions() {
Move m;
int seeScore;
// Skip if we don't have at least two moves to order
if (lastMove < moves + 2)
return;
for (MoveStack* cur = moves; cur != lastMove; cur++)
{
m = cur->move;

2
src/movepick.h
View file

@ -58,7 +58,7 @@ public:
private:
void score_captures();
void score_noncaptures();
void score_evasions();
void score_evasions_or_checks();
void go_next_phase();
const Position& pos;