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

Kobayashi Satoru - Kato]
PL[W]

AB[md][pd][ke][kf][jh][kj][lj][pj][fk][ik][jk][mk][cl][dl][im][lm][jn][no][lp][mp][op][qp][jq][kq]
AW[dd][fd][jd][je][ig][ih][ii][dj][ej][jj][ck][kk][kl][ml][cn][ko][mo][dp][gp][ip][jp][kp][lq]

;W[qj]C[W1]MN[1]
;B[qi]C[B2]MN[2]
;W[ri]C[W3]MN[3]
;B[pi]C[B4]MN[4]

;
)
