(;GM[1]FF[4]SZ[19]
GN[First hane: failure]
PC[http://senseis.xmp.net/?L2Group]AP[GoWiki:2009]
DT[2009-04-22]
C[Diagram from http://senseis.xmp.net/?L2Group

First hane: failure]
PL[W]

AB[cb][db][cc][bd][cd][be]
AW[eb][dc][ec][dd][ce][ee][bf][cf]

;W[ae]C[W1]MN[1]
;B[bb]C[B2]MN[2]
;W[ac]C[W3]MN[3]
;B[ad]C[B4]MN[4]
;W[ab]C[W5]MN[5]
;B[da]C[B6]MN[6]
;W[ba]C[W7]MN[7]

;
)
