(;GM[1]FF[4]SZ[19]
GN[]
PC[http://senseis.xmp.net/?GokyoShumyoSection4Problem1/Solution]AP[GoWiki:2009]
DT[2009-04-22]
C[Diagram from http://senseis.xmp.net/?GokyoShumyoSection4Problem1/Solution

]
PL[W]

AB[cb][db][bc][bd][cd][cf]
AW[bb][cc][dc][ec][gc]

;W[ba]C[W1]MN[1]
;B[ab]C[B2]MN[2]
;W[eb]C[W3]MN[3]

;
)
