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

Response ''a'']
PL[W]

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

;B[ea]C[B2]MN[2]
;W[eb]C[W3]MN[3]
;B[ga]C[B4]MN[4]
;W[fc]C[W5]MN[5]

;LB[gb:a][gd:b]
)
