add explanatory comment

jhlywa · Jul 16, 2023 · 6025676 · 6025676
1 parent a6ce7d0
commit 6025676
Showing 1 changed file with 1 addition and 0 deletions.
diff --git a/src/chess.ts b/src/chess.ts
@@ -808,6 +808,7 @@ export class Chess {
 
     const currentPieceOnSquare = this._board[sq]
 
+    // if one of the kings will be replaced by the piece from args, set the `_kings` respective entry to `EMPTY`
     if (currentPieceOnSquare && currentPieceOnSquare.type === KING) {
       this._kings[currentPieceOnSquare.color] = EMPTY
     }