diff --git a/src/repr/bitboard.rs b/src/repr/bitboard.rs
index 7f1638b..fe0ed3f 100644
--- a/src/repr/bitboard.rs
+++ b/src/repr/bitboard.rs
@@ -43,7 +43,7 @@ impl BitBoard {
     }
 
     pub const fn is_empty(&self) -> bool {
-        self.0 == 0
+        self.0 == 0b0
     }
 
     pub const fn east(&self, n: usize) -> Self {
@@ -82,10 +82,10 @@ impl BitBoard {
 
     // Mask for a specific column (e.g., col_mask(7) = 0x8080808080808080)
     const fn col_mask(col: CoordAxis) -> Self {
-        let mut mask = 0;
-        let mut i = 0;
+        let mut mask = 0b0;
+        let mut i = 0b0;
         while i < Board::AREA.0 {
-            mask |= 1 << (i + col);
+            mask |= 0b1 << (i + col);
             i += Board::SIZE;
         }
         Self(mask)
@@ -97,7 +97,7 @@ impl BitBoard {
     }
 
     pub const fn intersects(self, other: Self) -> bool {
-        (self.0 & other.0) > 0
+        (self.0 & other.0) > 0b0
     }
 
     pub const fn bitor_assign(&mut self, other: Self) {