Theketch:d=4,o=6,b=180:8f_5,8f_5,8f_5,8f_5,8p,p,8f_5,p,8f_5,8f_5,p,8f_5,8f_5,8f5,2p,8g_5,8f_5,8f5,8f5,8p,p,8f5,p