(;GM[1]FF[4]SZ[19]
GN[Thickness]
PC[http://senseis.xmp.net/?posting=4694]AP[GoWiki:2009]
DT[2009-04-22]
C[Diagram from http://senseis.xmp.net/?posting=4694

Thickness]
PL[B]

AB[dc][fc][gc][cd][ed][ee]
AW[cb][cc][ec][dd][fd][de]
CR[dc][ec][cd]

;B[df]C[B1]MN[1]
;W[ce]C[W2]MN[2]
;B[cf]C[B3]MN[3]
;W[db]C[W4]MN[4]
;B[be]C[B5]MN[5]
;W[bd]C[W6]MN[6]
;B[ef]C[B7]MN[7]

;CR[dc][ec][cd]
)
