Chain

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