private bool TryDecision(Board board, BinaryDecision decision, Difficulty cap)
{
Board trueDecision = board.Clone();
Board falseDecision = board.Clone();
decision.Decide(trueDecision, true);
decision.Decide(falseDecision, false);
trueDecision.solution = trueDecision.Solve(cap);
falseDecision.solution = falseDecision.Solve(cap);
trueDecision.Finish();
falseDecision.Finish();
BoardDifference trueDifference = new BoardDifference(board, trueDecision);
BoardDifference falseDifference = new BoardDifference(board, falseDecision);
BoardDifference merged = BoardDifference.Merge(trueDifference, falseDifference);
if (merged.HasDifferences())
{
merged.Apply(board);
return(true);
}
else
{
return(false);
}
}
public static BoardDifference Merge(BoardDifference first, BoardDifference second)
{
BoardDifference merged = new BoardDifference();
for (int k = 0; k < Board.size * Board.size; k++)
{
RemovedNotes mergedNotes = merged.removedNotes[k];
RemovedNotes firstNotes = first.removedNotes[k];
RemovedNotes secondNotes = second.removedNotes[k];
for (int n = 0; n < CellInfo.numbers; n++)
{
if (firstNotes.Removed[n] && secondNotes.Removed[n])
{
mergedNotes.Remove(n);
}
}
}
return(merged);
}