diff --git a/packages/Chess/src/Game.ts b/packages/Chess/src/Game.ts
index baa9d57..636f96b 100644
--- a/packages/Chess/src/Game.ts
+++ b/packages/Chess/src/Game.ts
@@ -327,10 +327,16 @@ export class ChessGame {
 
   private isInsufficientMaterial(): boolean {
   const pieces: string[] = [];
-  for (let row of this.state.board) {
-    for (let cell of row) {
-      if (cell !== "" && cell.toLowerCase() !== "k") {
-        pieces.push(cell);
+  const bishopPositions: { x: number; y: number }[] = [];
+
+  for (let x = 0; x < 8; x++) {
+    for (let y = 0; y < 8; y++) {
+      const piece = this.state.board[x]?.[y];
+      if (piece && piece !== "" && piece.toLowerCase() !== "k") {
+        pieces.push(piece);
+        if (piece.toLowerCase() === "b") {
+          bishopPositions.push({ x, y });
+        }
       }
     }
   }
@@ -343,8 +349,15 @@ export class ChessGame {
   if (pieces.length === 2) {
     const [p1, p2] = pieces.map(p => p.toLowerCase());
     if (p1 === "b" && p2 === "b") {
-      // Need to check bishop colors, but basic case = same color bishops
-      return true;
+      // Check if bishops are on the same color squares
+      if (bishopPositions.length === 2) {
+        const b1 = bishopPositions[0]!;
+        const b2 = bishopPositions[1]!;
+        const b1Color = (b1.x + b1.y) % 2; // 0 = light square, 1 = dark square
+        const b2Color = (b2.x + b2.y) % 2;
+        return b1Color === b2Color; // Only draw if both bishops are on same color
+      }
+      return true; // Default to true if we can't determine positions
     }
   }