(;GM[1]FF[4]SZ[19]
GN[Thickness]
PC[http://senseis.xmp.net/?ThicknessExample11]AP[GoWiki:2009]
DT[2009-04-22]
C[Diagram from http://senseis.xmp.net/?ThicknessExample11

Thickness]
PL[B]

AB[eb][ec][dd][fd][be][ce][de][ff]
AW[bb][db][dc][hc][kc][bd][cd][ed][ch][hh][jh][ck]


;
)
