diff --git a/game/grid.go b/game/grid.go
index f215d8d..ffbafee 100644
--- a/game/grid.go
+++ b/game/grid.go
@@ -39,3 +39,9 @@ func (g *Grid) IsRowFull(y byte) bool {
 	}
 	return true
 }
+
+func (g *Grid) ClearRow(y byte) {
+	w := uint16(g.Width())
+	n := uint16(y) * w
+	clear(g[n : n+w])
+}