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

Variation]
PL[B]

AB[hc][dd][df]
AW[db][cc][fc]

;B[ec]C[B1]MN[1]
;W[ed]C[W2]MN[2]
;B[dc]C[B3]MN[3]
;W[eb]C[W4]MN[4]
;B[fd]C[B5]MN[5]
;W[gd]C[W6]MN[6]

;
)
