diff --git a/lib/src/game/game.dart b/lib/src/game/game.dart
index b6d49b0..ff6ae70 100644
--- a/lib/src/game/game.dart
+++ b/lib/src/game/game.dart
@@ -468,7 +468,7 @@ class Game {
               continue;
             } // king starting on target
 
-            if (j != numMidSqs && board[midSq].isNotEmpty) {
+            if (j != numMidSqs && from != midSq && board[midSq].isNotEmpty) {
               // squares between to and from must be empty
               valid = false;
               break;