Solo do meio 
                  /------------\ 
-------------------------------------------------------------------19b21--------------- 
---17b(19)-(19)-17b(19)r17p15-17---19b(20)-17b(19)r17-15-----15------------------------ 
----------------------------------------------------------/14--14---------------------- 
--------------------------------------------------------------------------------------- 
--------------------------------------------------------------------------------------- 
--------------------------------------------------------------------------------------- 
 
        /--------------------\      /-----------------\ 
--18-15-------------------------------------------------------------------------------- 
--------18b(20)r18b(20)r(18)p15--15-----------------------------13--------------------- 
-------------------------------17--17b(19)r17b(19)r17p15----------14------------------- 
--------------------------------------------------------17-15\12----------------------- 
--------------------------------------------------------------------------------------- 
--------------------------------------------------------------------------------------- 
 
--/17-15p14----------------------------------------------------------------------15-17- 
-----------15-----15------------------------------------------------15-17-17b(18)------ 
-------------14\12--11--------11------------------11-14/16-14-/14-16------------------- 
----------------------14-12-14--12--------11-12-14------------------------------------- 
----------------------------------14-12-14--------------------------------------------- 
--------------------------------------------------------------------------------------- 
 
  /-------------------------------------------\ 
----------------------------------17-18-18b(20)---------------------------------------- 
--------------------------17-18-20----------------------------------------------------- 
---------------14-15-17/19------------------------------------------------------------- 
-------14-15-17------------------------------------------------------------------------ 
--15-17-------------------------------------------------------------------------------- 
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