diff --git a/reviews/BordedDev/sudoku.rewrite.css b/reviews/BordedDev/sudoku.rewrite.css
index 4ab1051..f85de58 100644
--- a/reviews/BordedDev/sudoku.rewrite.css
+++ b/reviews/BordedDev/sudoku.rewrite.css
@@ -26,6 +26,14 @@
 		border-left: none;
 		border-top: none;
 
+		/* Disable borders at the edges */
+		&:nth-child(9n) {
+			border-right: none;
+		}
+		&:nth-last-child(-n + 9) {
+			border-bottom: none;
+		}
+
 		/* Cross bars */
 		&:nth-child(3n):not(:nth-child(9n)) {
 			border-right-color: black;