(;GM[1]FF[4]SZ[19]
GN[]
PC[http://senseis.xmp.net/?GokyoShumyoSection2Problem21/Attempts]AP[GoWiki:2009]
DT[2009-07-10]
C[Diagram from http://senseis.xmp.net/?GokyoShumyoSection2Problem21/Attempts

]
PL[B]

AB[gb][gc][bd][cd][dd][ed][fd][bf]
AW[eb][bc][cc][ec][ad]

;B[dc]C[B1]MN[1]
;W[db]C[W2]MN[2]
;B[bb]C[B3]MN[3]
;W[cb]C[W4]MN[4]
;B[ba]C[B5]MN[5]

;
)
