(;GM[1]FF[4]SZ[19]
GN[staircase]
PC[http://senseis.xmp.net/?WuRenGo3/Black]AP[GoWiki:2009]
DT[2010-09-15]
C[Diagram from http://senseis.xmp.net/?WuRenGo3/Black

staircase]
PL[B]

AB[db][eb][bc][cc][dc][bd][jd][ld][md][nd][od][ce][ke][qe][cf][jf][kf][hg][gj][pk][qm][qn][oo][ip][np][fq][nq][oq]
AW[fb][ec][kc][lc][mc][oc][pc][cd][dd][fd][id][kd][be][de][ie][je][bf][cj][ij][cn][pn][fo][io][dp][op][pp][qp][pq]
CR[ij]
SQ[io]
LB[di:g][cq:x]

;B[ho]C[B1]MN[1]
;W[hn]C[W2]MN[2]
;B[in]C[B3]MN[3]
;W[im]C[W4]MN[4]
;B[jn]C[B5]MN[5]
;W[hm]C[W6]MN[6]

;CR[ij]
SQ[io]
LB[di:g][cq:x]
)
