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

Follow-up]
PL[B]

AB[cp][dq][eq]
AW[fm][ep][fq]
LB[cn:a][co:b]

;B[gp]C[B1]MN[1]
;W[fp]C[W2]MN[2]
;B[gn]C[B3]MN[3]

;LB[cn:a][co:b]
)
