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Fix "engine error" after delivering mate in ponder-on game.

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When the human player delivers check mate in a ponder-on game, the GUI sometimes
reported "engine error". This happened when the computer was pondering a move
that ended the game, so that there were no valid moves after the ponder move.
This commit is contained in:
Peter Osterlund 2019-04-20 07:19:33 +02:00
parent e42ee6607e
commit d292f0604c
1 changed files with 5 additions and 0 deletions
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5
DroidFishApp/src/main/java/org/petero/droidfish/engine/DroidComputerPlayer.java
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@ -827,6 +827,11 @@ public class DroidComputerPlayer {
tmpPos.makeMove(bestM, ui); tmpPos.makeMove(bestM, ui);
if (!TextIO.isValid(tmpPos, nextPonderMove)) if (!TextIO.isValid(tmpPos, nextPonderMove))
canPonder = false; canPonder = false;
if (canPonder) {
tmpPos.makeMove(nextPonderMove, ui);
if (MoveGen.instance.legalMoves(tmpPos).isEmpty())
canPonder = false;
}
} }
} }
if (!canPonder) if (!canPonder)