// be very big, and so capturing a single attacking piece can therefore
// result in a score change far bigger than the value of the captured piece.
score -= KingDanger[Us == Search::RootColor][attackUnits];
// be very big, and so capturing a single attacking piece can therefore
// result in a score change far bigger than the value of the captured piece.
score -= KingDanger[Us == Search::RootColor][attackUnits];