(;GM[1]FF[4]SZ[19]
GN[Solution]
PC[http://senseis.xmp.net/?GokyoShumyoSection6Problem20/Solution]AP[GoWiki:2009]
DT[2009-04-22]
C[Diagram from http://senseis.xmp.net/?GokyoShumyoSection6Problem20/Solution

Solution]
PL[B]

AB[cc][gc][bd][dd][gd][id][de][fe][cg]
AW[dc][ec][jc][fd][jd][ee][ge][je][ef][hf]

;B[db]C[B1]MN[1]
;W[fb]C[W2]MN[2]
;B[fc]C[B3]MN[3]
;W[ed]C[W4]MN[4]
;B[eb]C[B5]MN[5]

;
)
