(;GM[1]FF[4]SZ[19]
GN[Black makes ko to lose it now.]
PC[http://senseis.xmp.net/?SquareNineInTheCorner]AP[GoWiki:2009]
DT[2009-04-22]
C[Diagram from http://senseis.xmp.net/?SquareNineInTheCorner

Black makes ko to lose it now.]
PL[B]

AB[da][db][dc][ad][bd][cd][dd]
AW[ea][bb][eb][ec][ed][ae][be][ce][de][ee]
CR[bb]

;B[ba]C[B1]MN[1]
;W[bc]C[W2]MN[2]
;B[ab]C[B3]MN[3]
;W[ac]C[W4]MN[4]
;B[cb]C[B5]MN[5]
;W[aa]C[W6]MN[6]
;W[ca]C[W8]MN[8]
;W[cc]C[W10]MN[10]

;CR[bb]
)
