(;GM[1]FF[4]SZ[19]
GN[A Ko is made!]
PC[http://senseis.xmp.net/?GokyoShumyoSection3Problem84/Attempts]AP[GoWiki:2009]
DT[2009-10-15]
C[Diagram from http://senseis.xmp.net/?GokyoShumyoSection3Problem84/Attempts

A Ko is made!]
PL[B]

AB[bb][cb][gb][dc][ec][fc][dd]
AW[ba][ab][hb][bc][cc][hc][ed][fd][gd][ce][de]

;B[ca]C[B1]MN[1]
;W[db]C[W2]MN[2]
;B[aa]C[B3]MN[3]
;W[ac]C[W4]MN[4]
;B[eb]C[B5]MN[5]

;
)
