diff --git a/01_the_screen/map.go b/01_the_screen/map.go
index fd7811e..89d5db9 100644
--- a/01_the_screen/map.go
+++ b/01_the_screen/map.go
@@ -13,18 +13,6 @@ func compass(near Position, offset int) []Position {
   }
 }
 
-func (game *Game) CloneMap() Map {
-  // this is a shallow copy though
-  new_map := slices.Clone(game.Level)
-
-  for i, row := range new_map {
-    // this makes sure the row is an actual copy
-    new_map[i] = slices.Clone(row)
-  }
-
-  return new_map
-}
-
 func (game *Game) Inbounds(pos Position, offset int) bool {
   return pos.X >= offset &&
     pos.X < game.Width - offset &&
diff --git a/02_mazes_and_enemies/map.go b/02_mazes_and_enemies/map.go
index a98a02f..db244e6 100644
--- a/02_mazes_and_enemies/map.go
+++ b/02_mazes_and_enemies/map.go
@@ -13,18 +13,6 @@ func compass(near Position, offset int) []Position {
   }
 }
 
-func (game *Game) CloneMap() Map {
-  // this is a shallow copy though
-  new_map := slices.Clone(game.Level)
-
-  for i, row := range new_map {
-    // this makes sure the row is an actual copy
-    new_map[i] = slices.Clone(row)
-  }
-
-  return new_map
-}
-
 func (game *Game) Inbounds(pos Position, offset int) bool {
   return pos.X >= offset &&
     pos.X < game.Width - offset &&