diff --git a/Grille.php b/Grille.php
index 82e83d3..9523996 100644
--- a/Grille.php
+++ b/Grille.php
@@ -11,7 +11,6 @@ class Grille implements ArrayAccess {
     private $nb_positions;
     public $lignes = [];
     public $colonnes = [];
-    public $valide = false;
 
     public function __construct($hauteur, $largeur)
     {