(;GM[1]FF[4]SZ[19]
GN[Attack at 2-2]
PC[http://senseis.xmp.net/?L2Group]AP[GoWiki:2009]
DT[2009-04-22]
C[Diagram from http://senseis.xmp.net/?L2Group

Attack at 2-2]
PL[W]

AB[cb][db][cc][bd][cd][be]
AW[eb][dc][ec][dd][ce][ee][bf][cf]
LB[da:b][ae:a]

;W[bb]C[W1]MN[1]
;B[ba]C[B2]MN[2]
;W[ab]C[W3]MN[3]
;B[ac]C[B4]MN[4]

;LB[da:b][ae:a]
)
