(;GM[1]FF[4]SZ[7:4]
GN[Two-something ko]
PC[http://senseis.xmp.net/?TwoStepKoTwoStageKoDiscussion]AP[GoWiki:2009]
DT[2009-04-22]
C[Diagram from http://senseis.xmp.net/?TwoStepKoTwoStageKoDiscussion

Two-something ko]
PL[B]

AB[ba][ca][bb][bc][cc][cd][dd]
AW[da][ea][cb][eb][fb][dc][fc][ed][fd]


;
)
