(;GM[1]FF[4]SZ[19]
GN[Follow-up]
PC[http://senseis.xmp.net/?GokyoShumyoSection3Problem46/Attempts]AP[GoWiki:2009]
DT[2009-04-22]
C[Diagram from http://senseis.xmp.net/?GokyoShumyoSection3Problem46/Attempts

Follow-up]
PL[B]

AB[da][eb][fb][bc][dc][gc][ad][ed][ae][ee][ge][bf][cf][ci]
AW[aa][ca][bb][cb][db][ac][cc][ec][cd][dd][be]

;B[ab]C[B1]MN[1]
;W[bd]C[W2]MN[2]
;B[ba]C[B3]MN[3]

;
)
