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DroidFish: Handle 50-move draw rule when "probe at root" is enabled in

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Peter Osterlund
2016-02-14 20:33:51 +01:00
parent 022d864624
commit d673eea800
1 changed files with 13 additions and 5 deletions
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18
DroidFish/src/org/petero/droidfish/tb/Probe.java
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@@ -280,18 +280,26 @@ public class Probe {
UndoInfo ui = new UndoInfo();
for (Move m : moveList) {
pos.makeMove(m, ui);
int pliesToDraw = Math.max(100 - pos.halfMoveClock, 1);
GtbProbeResult res = gtbProbe(pos);
pos.unMakeMove(m, ui);
if (res.result == GtbProbeResult.UNKNOWN) {
unknownMoves.add(m);
} else {
int wScore;
if (res.result == GtbProbeResult.WMATE)
wScore = MATE0 - res.pliesToMate;
else if (res.result == GtbProbeResult.BMATE)
wScore = -(MATE0 - res.pliesToMate);
else
if (res.result == GtbProbeResult.WMATE) {
if (res.pliesToMate <= pliesToDraw)
wScore = MATE0 - res.pliesToMate;
else
wScore = 1;
} else if (res.result == GtbProbeResult.BMATE) {
if (res.pliesToMate <= pliesToDraw)
wScore = -(MATE0 - res.pliesToMate);
else
wScore = -1;
} else {
wScore = 0;
}
int score = pos.whiteMove ? wScore : -wScore;
if (score > bestScore) {
optimalMoves.clear();