diff --git a/src/data/codingcontracttypes.ts b/src/data/codingcontracttypes.ts
index 9342614d6..e6450ad21 100644
--- a/src/data/codingcontracttypes.ts
+++ b/src/data/codingcontracttypes.ts
@@ -1271,6 +1271,8 @@ export const codingContractTypesMetadata: ICodingContractTypeMetadata[] = [
 
       const result: string[] = [];
       helper(result, "", num, target, 0, 0, 0);
+      // Prevent player from providing extra wrong answers and still receiving credit
+      if (result.length !== sanitizedPlayerAnsArr.length) return false;
 
       for (const expr of result) {
         if (!sanitizedPlayerAnsArr.includes(expr)) {