▒...▒PP.P 
                  ▒...▒.PP  
                  ▒...▒..   
                  ▒...▒P♣♣ P
          %.▒     ▒...▒♣P♣P.
          ▒.▒     ▒...▒.....
          ▒.▒▒.▒▒▒▒...▒..P..
          ▒.▒▒......<.▒PPP. 
          ▒.▒▒.▒▒▒▒...▒♣PP.♣
          ▒.▒▒.▒  ▒...▒.....
          ▒.▒▒(▒  ▒...▒.P..P
▒.  ▒▒▒▒▒▒▒.▒▒.▒▒▒▒...▒.♣...
... ...........▒...†..▒.P..P
....▒▒▒▒▒▒▒...........▒..PP.
.......†....>...[.....▒.PP. 
 ...▒...▒▒▒▒▒▒▒.▒▒....▒  ▒▒ 
.......>†b.......▒...▒▒     
▒.▒▒▒...▒▒▒▒▒▒▒..▒▒▒▒▒      
   ▒....▒     ▒..▒          
  ▒.▒...▒     ▒..▒          
 ▒.▒▒....     ▒..▒          
... ....▒     ....          
▒▒ ▒.▒..▒                   
   ▒▒.▒.