private void AddKingThreats(
Board board,
Player player,
BoardLocation playerKingLocation,
BoardLocation opposingPieceBoardLocation,
ThreatMatrix threatMatrix)
{
opposingPieceBoardLocation
.Neighbors()
.ForEach(a => AddThreat(threatMatrix, playerKingLocation, opposingPieceBoardLocation, a, ThreatDirection.Direct));
}