(;GM[1]FF[4]SZ[19]
GN[]
PC[http://senseis.xmp.net/?GokyoShumyoSection3Problem13/Attempts]AP[GoWiki:2009]
DT[2009-04-22]
C[Diagram from http://senseis.xmp.net/?GokyoShumyoSection3Problem13/Attempts

]
PL[B]

AB[eb][bc][dc][dd]
AW[fb][ec][gc][bd][ed][ce][de]
LB[cc:b][cd:a]

;B[cb]C[B1]MN[1]
;W[ea]C[W2]MN[2]
;B[da]C[B3]MN[3]

;LB[cc:b][cd:a]
)
