(;GM[1]FF[4]SZ[19]
GN[Black pushes on]
PC[http://senseis.xmp.net/?DoubleThreatLadderMaker]AP[GoWiki:2009]
DT[2009-04-22]
C[Diagram from http://senseis.xmp.net/?DoubleThreatLadderMaker

Black pushes on]
PL[B]

AB[eb][fb][ec][dd][fd][gd][pd][de]
AW[cc][dc][fc][gc][hc][cd][ed][ee]
SQ[hc]
LB[id:a]

;B[hd]C[B1]MN[1]
;W[ic]C[W2]MN[2]
;B[ef]C[B3]MN[3]
;W[fe]C[W4]MN[4]
;B[ff]C[B5]MN[5]
;W[ge]C[W6]MN[6]
;B[he]C[B7]MN[7]

;SQ[hc]
LB[id:a]
)
