makeSanUnchecked method
Implementation
(Position, String) makeSanUnchecked(Move move) {
final san = _makeSanWithoutSuffix(move);
final newPos = playUnchecked(move);
final suffixed = newPos.outcome?.winner != null
? '$san#'
: newPos.isCheck
? '$san+'
: san;
return (newPos, suffixed);
}