diff --git a/board/src/zobrist.rs b/board/src/zobrist.rs
index 39eee98..911bd26 100644
--- a/board/src/zobrist.rs
+++ b/board/src/zobrist.rs
@@ -179,10 +179,6 @@ mod tests {
         ZobristState::new(&mut rng)
     }
 
-    fn test_hash() -> ZobristHash {
-        ZobristHash::new(Arc::new(test_state()))
-    }
-
     #[test]
     fn hash_empty_board_ai_claude() {
         let state = test_state();