(;GM[1]FF[4]SZ[19]
GN[Thickness]
PC[http://senseis.xmp.net/?ReadyReckoner]AP[GoWiki:2009]
DT[2009-04-22]
C[Diagram from http://senseis.xmp.net/?ReadyReckoner

Thickness]
PL[B]

AB[cd][dd][ed][fd]
AW[cc][dc][ec][fc]
LB[gc:a]


;LB[gc:a]
)
