WGWGWGWGWGWGWG
WGXR        WG
WG  WGWGWG  WG
WG    BB    WG
WGZGWGWGWG  WG
WG    BR  ZBWG
WGWGWGWGWGWGWG
--------------
WGWGWGWGWGWGWG
WG B R R B BWG
WG BWGWGWG BWG
WG G G G G GWG
WG GWGWGWG GWG
WG G G G G GWG
WGWGWGWGWGWGWG