diff --git a/src/board/bitboard/iterator.rs b/src/board/bitboard/iterator.rs
index fcd644c..06db283 100644
--- a/src/board/bitboard/iterator.rs
+++ b/src/board/bitboard/iterator.rs
@@ -14,14 +14,4 @@ impl Iterator for BitboardIterator {
             Some(crate::board::Square::from_index(lsb))
         }
     }
-
-    fn size_hint(&self) -> (usize, Option<usize>) {
-        let size = self.0.count_ones() as usize;
-
-        (size, Some(size))
-    }
 }
-
-impl ExactSizeIterator for BitboardIterator {}
-
-impl std::iter::FusedIterator for BitboardIterator {}
diff --git a/src/board/color.rs b/src/board/color.rs
index d71df67..a7af8b6 100644
--- a/src/board/color.rs
+++ b/src/board/color.rs
@@ -1,4 +1,4 @@
-use super::{Direction, Rank};
+use super::Rank;
 
 /// An enum representing the color of a player.
 #[derive(Copy, Clone, Debug, PartialEq, Eq, PartialOrd, Ord, Hash)]
@@ -65,21 +65,6 @@ impl Color {
             Self::Black => Rank::Second,
         }
     }
-
-    /// Which way do pawns advance for this color.
-    #[inline(always)]
-    pub fn forward_direction(self) -> Direction {
-        match self {
-            Self::White => Direction::North,
-            Self::Black => Direction::South,
-        }
-    }
-
-    /// Which way do the opponent's pawns advance for this color.
-    #[inline(always)]
-    pub fn backward_direction(self) -> Direction {
-        (!self).forward_direction()
-    }
 }
 
 impl std::ops::Not for Color {