/// simple coordinate notation and returns an equivalent Move if any.
/// Moves are guaranteed to be legal.
-Move move_from_uci(const Position& pos, const string& str) {
+Move move_from_uci(const Position& pos, string& str) {
+
+ if (str.length() == 5) // Junior could send promotion in uppercase
+ str[4] = char(tolower(str[4]));
for (MoveList<MV_LEGAL> ml(pos); !ml.end(); ++ml)
if (str == move_to_uci(ml.move(), pos.is_chess960()))
// Disambiguation if we have more then one piece with destination 'to'
// note that for pawns is not needed because starting file is explicit.
- attackers = pos.attackers_to(to) & pos.pieces(pt, pos.side_to_move());
+ attackers = pos.attackers_to(to) & pos.pieces(pos.side_to_move(), pt);
attackers ^= from;
ambiguousMove = ambiguousFile = ambiguousRank = false;