private static EMoveAmbiguity Ambiguity(this Move move, BitBoard similarTypeAttacks, IPosition position)
{
var ambiguity = EMoveAmbiguity.None;
foreach (var square in similarTypeAttacks)
{
var pinned = position.GetPinnedPieces(square, move.GetMovingSide());
if (similarTypeAttacks & pinned)
{
continue;
}
if (move.GetMovingPieceType() != position.GetPieceType(square))
{
continue;
}
if (position.OccupiedBySide[move.GetMovingSide().Side] & square)
{
if (square.File() == move.GetFromSquare().File())
{
ambiguity |= EMoveAmbiguity.File;
}
else if (square.Rank() == move.GetFromSquare().Rank())
{
ambiguity |= EMoveAmbiguity.Rank;
}
ambiguity |= EMoveAmbiguity.Move;
}
}
return(ambiguity);
}
