(;GM[1]FF[4]SZ[19]
GN[variation: seki]
PC[http://senseis.xmp.net/?GokyoShumyoSection3Problem23/Attempts]AP[GoWiki:2009]
DT[2009-04-22]
C[Diagram from http://senseis.xmp.net/?GokyoShumyoSection3Problem23/Attempts

variation: seki]
PL[B]

AB[da][db][gb][dc][ed][fd][gd]
AW[cb][hb][cc][hc][cd][hd][de][ee][ge][he]

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

;
)
