(;GM[1]FF[4]SZ[19]
GN[W cannot make two eyes now]
PC[http://senseis.xmp.net/?GokyoShumyoSection3Problem51/Attempts]AP[GoWiki:2009]
DT[2011-01-05]
C[Diagram from http://senseis.xmp.net/?GokyoShumyoSection3Problem51/Attempts

W cannot make two eyes now]
PL[B]

AB[ib][bc][cc][ic][ad][bd][be][ce][ee][ge][he][ef]
AW[bb][cb][hb][ac][dc][gc][cd][dd][gd]

;B[eb]C[B1]MN[1]
;W[fb]C[W2]MN[2]
;B[fa]C[B3]MN[3]
;W[ga]C[W4]MN[4]
;B[fc]C[B5]MN[5]
;W[ea]C[W6]MN[6]
;B[ec]C[B7]MN[7]

;
)
