diff --git a/src/repr.rs b/src/repr.rs
index 731fb9e..81e3923 100644
--- a/src/repr.rs
+++ b/src/repr.rs
@@ -40,8 +40,9 @@ pub struct Board {
 
 impl fmt::Display for Board {
     fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
+        let horiz_sep_line = "-".repeat(BOARD_SIZE * 2 + 1);
         for i in 0..BOARD_SIZE {
-            writeln!(f, "{}", "-".repeat(BOARD_SIZE * 2 + 1))?;
+            writeln!(f, "{}", horiz_sep_line)?;
 
             write!(f, "|")?;
             for j in 0..BOARD_SIZE {
@@ -53,7 +54,10 @@ impl fmt::Display for Board {
             }
             writeln!(f)?;
         }
-        writeln!(f, "{}", "-".repeat(BOARD_SIZE * 2 + 1))?;
+
+        // put a line at the bottom of the board too
+        writeln!(f, "{}", horiz_sep_line)?;
+
         Ok(())
     }
 }