diff --git a/src/main/scala/variant/Antichess.scala b/src/main/scala/variant/Antichess.scala
index 9c6792e32..ad43d4acb 100644
--- a/src/main/scala/variant/Antichess.scala
+++ b/src/main/scala/variant/Antichess.scala
@@ -62,13 +62,7 @@ case object Antichess
 
       // We consider the case where a player has two knights
       if whiteKnights.size != 1 || blackKnights.size != 1 then false
-      else
-        {
-          for
-            whiteKnight <- whiteKnights.headOption
-            blackKnight <- blackKnights.headOption
-          yield whiteKnight.isLight == blackKnight.isLight
-        }.getOrElse(false)
+      else whiteKnights.forall(_.isLight) == blackKnights.forall(_.isLight)
     }
 
   // No player can win if the only remaining pieces are opposing bishops on different coloured