(;GM[1]FF[4]SZ[19]
GN[[seki\]]
PC[http://senseis.xmp.net/?StaircaseTen]AP[GoWiki:2009]
DT[2010-09-23]
C[Diagram from http://senseis.xmp.net/?StaircaseTen

[seki\]]
PL[W]

AB[ea][db][eb][cc][dc][bd][cd][ae][be]
AW[fa][fb][ec][dd][fd][ce][af][bf][df]

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

;
)
