Correction de « valid_move »

main.c

@@ -214,7 +214,7 @@ enum bool valid_move(const struct move_t move, const struct move_t previous_move
     case 1:
      return false;
     case 3:
-     return true;
+     return (previous_move.start_pos == -1 && previous_move.end_pos == -1);
    }
   }
  } while(j++ < 6);
@@ -416,3 +416,4 @@ int main(int argc, char** argv) {
 
  return 0;
 }
+