diff --git a/src/rooms/PuzzleMathRoom.ts b/src/rooms/PuzzleMathRoom.ts
index 5c91cb1..37c4613 100644
--- a/src/rooms/PuzzleMathRoom.ts
+++ b/src/rooms/PuzzleMathRoom.ts
@@ -104,4 +104,12 @@ export class PuzzleMathRoom extends Room {
       }
     }
   }
+
+  /**
+   * 更新论数
+   * @param {number} round
+   */
+  updateRound(round: number) {
+    this.state.round = round
+  }
 }