(;GM[1]FF[4]SZ[19]
GN[Solution]
PC[http://senseis.xmp.net/?GokyoShumyoSection6Problem21/Solution]AP[GoWiki:2009]
DT[2009-04-22]
C[Diagram from http://senseis.xmp.net/?GokyoShumyoSection6Problem21/Solution

Solution]
PL[W]

AB[fb][ec][gc][jc][de][fe][he][ie][ef][gf]
AW[db][hb][dc][hc][dd][ed][hd][ee][ge][cf]
LB[ea:a][ga:b][eb:c][gb:d]

;W[fa]C[W1]MN[1]

;LB[ea:a][ga:b][eb:c][gb:d]
)
