(;GM[1]FF[4]SZ[19]
GN[First force the capture...]
PC[http://senseis.xmp.net/?GokyoSeimyoVolume3Problem10/Attempts]AP[GoWiki:2009]
DT[2009-04-29]
C[Diagram from http://senseis.xmp.net/?GokyoSeimyoVolume3Problem10/Attempts

First force the capture...]
PL[B]

AB[da][cb][eb][cc][bd][dd][de][ef][eg][dh][eh][bi][ci][aj][bk]
AW[ba][ca][bb][bc][cd][ce][cf][df][dg][ah][bh][ch][ai]
LB[ac:a]

;B[bg]C[B1]MN[1]
;W[bf]C[W2]MN[2]
;B[ag]C[B3]MN[3]
;W[cg]C[W4]MN[4]
;B[ae]C[B5]MN[5]
;W[af]C[W6]MN[6]

;LB[ac:a]
)
