(;GM[1]FF[4]SZ[19]
GN[Attach-staircase pattern]
PC[http://senseis.xmp.net/?AttachStaircase]AP[GoWiki:2009]
DT[2009-04-22]
C[Diagram from http://senseis.xmp.net/?AttachStaircase

Attach-staircase pattern]
PL[B]

AB[gf]
AW[ie]
LB[hf:a]

;B[if]C[B1]MN[1]
;W[jf]C[W2]MN[2]
;B[jg]C[B3]MN[3]

;LB[hf:a]
)
