Chain

*     *  *     *   *****   *     *  *     *  *     *  ******   
 *   *   *     *  *     *  *     *   *   *   *     *  *     *  
  * *    *     *  *     *  *     *    * *    *     *  *     *  
   *     *******  *     *  *  *  *     *     *  *  *  ******   
  * *    *     *  *   * *  * * * *     *     * * * *  *   *    
 *   *   *     *  *    *   **   **     *     **   **  *    *   
*     *  *     *   **** *  *     *     *     *     *  *     *