feat: 1.0.1 added InCheck and CheckSquare to Position

engine.go

@@ -109,10 +109,7 @@ func addTags(m *Move, pos *Position) {
 }
 
 func isInCheck(pos *Position) bool {
-	kingSq := pos.board.whiteKingSq
-	if pos.Turn() == Black {
-		kingSq = pos.board.blackKingSq
-	}
+	kingSq := pos.activeKingSquare()
 	// king should only be missing in tests / examples
 	if kingSq == NoSquare {
 		return false

liad/liad.go

@@ -50,6 +50,9 @@ func main() {
 				if game.Position().EnPassantSquare() != octad.NoSquare {
 					fmt.Printf(", enp: %s", game.Position().EnPassantSquare().String())
 				}
+				if game.Position().InCheck() {
+					fmt.Printf(", in check at %s", game.Position().CheckSquare())
+				}
 			}
 			fmt.Println(game.Position().Board().Draw())
 

position.go

@@ -137,6 +137,20 @@ func (pos *Position) CastleRights() CastleRights {
 	return pos.castleRights
 }
 
+// InCheck returns true if the king is in check in the position.
+func (pos *Position) InCheck() bool {
+	return pos.inCheck
+}
+
+// CheckSquare returns the square containing the checked king.
+func (pos *Position) CheckSquare() Square {
+	if pos.inCheck {
+		return pos.activeKingSquare()
+	}
+
+	return NoSquare
+}
+
 // String implements the fmt.Stringer interface and returns a
 // string with the OFEN format: ppkn/4/4/NKPP w NCFncf - 0 1
 func (pos *Position) String() string {
@@ -368,6 +382,14 @@ func removeCastlingRight(rights *string, removedRight string) {
 	*rights = strings.Replace(*rights, removedRight, "", -1)
 }
 
+func (pos *Position) activeKingSquare() Square {
+	kingSq := pos.board.whiteKingSq
+	if pos.Turn() == Black {
+		kingSq = pos.board.blackKingSq
+	}
+	return kingSq
+}
+
 func (pos *Position) updateEnPassantSquare(m *Move) Square {
 	p := pos.board.Piece(m.s1)
 	if p.Type() != Pawn {