diff --git a/src/assignments/assignment06.rs b/src/assignments/assignment06.rs
index d687292..56a8168 100644
--- a/src/assignments/assignment06.rs
+++ b/src/assignments/assignment06.rs
@@ -1,4 +1,4 @@
-//! Assignment 6: Mastering advanced types.
+//! Assignment 6: Mastering advanced types (1/2).
 //!
 //! The primary goal of this assignment is to understand generics, traits, and lifetimes.
 //!
@@ -140,26 +140,3 @@ impl<C: Semiring> Polynomial<C> {
         todo!()
     }
 }
-
-struct FindIter<'s, T: Eq> {
-    query: &'s [T],
-    base: &'s [T],
-    curr: usize,
-}
-
-impl<T: Eq> Iterator for FindIter<'_, T> {
-    type Item = usize;
-
-    fn next(&mut self) -> Option<Self::Item> {
-        todo!()
-    }
-}
-
-/// Returns an iterator over substring query indexes in the base.
-pub fn find<'s, T: Eq>(query: &'s [T], base: &'s [T]) -> impl 's + Iterator<Item = usize> {
-    FindIter {
-        query,
-        base,
-        curr: 0,
-    }
-}
diff --git a/src/assignments/assignment06_grade.rs b/src/assignments/assignment06_grade.rs
index 3f9cbae..60339f6 100644
--- a/src/assignments/assignment06_grade.rs
+++ b/src/assignments/assignment06_grade.rs
@@ -88,27 +88,4 @@ mod test {
             )
         );
     }
-
-    #[test]
-    fn test_find() {
-        assert_eq!(
-            find("abc".as_bytes(), "abcdabcd".as_bytes()).collect::<Vec<usize>>(),
-            vec![0, 4]
-        );
-
-        assert_eq!(
-            find("aaba".as_bytes(), "aabaacaadaabaaba".as_bytes()).collect::<Vec<usize>>(),
-            vec![0, 9, 12]
-        );
-
-        assert_eq!(
-            find("ababac".as_bytes(), "abababcabababcabababc".as_bytes()).collect::<Vec<usize>>(),
-            vec![]
-        );
-
-        assert_eq!(
-            find("ababc".as_bytes(), "abc".as_bytes()).collect::<Vec<usize>>(),
-            vec![]
-        );
-    }
 }