(;GM[1]FF[4]SZ[19]
GN[Black to play]
PC[http://senseis.xmp.net/?ReadingProblem5/Solution]AP[GoWiki:2009]
DT[2009-04-22]
C[Diagram from http://senseis.xmp.net/?ReadingProblem5/Solution

Black to play]
PL[B]

AB[ia][jb][ob][pb][qb][dc][hc][ic][oc][qc][dd][md][nd][od][ee][he][le][oe][pe][df][ef][hf][jf][kf][bg][ig][kg][ch][dh][ih][kh][mh][oh][ph][qh][rh][ei][ji][ni][cj][jj][nj][dk][ek][jk][ok][el][il][jl][kl][nl][ol][pl][dm][nm][in][mn][nn][qn][io][ko][lo][cp][dp][hp][mp][np][qp][rp][bq][dq][mq][oq][pq][sq][cr][er][fr][jr][or][qr][rr][gs][ns][ps]
AW[ga][qa][db][fb][hb][ib][rb][cc][fc][gc][pc][rc][cd][ed][pd][qd][rd][ce][de][ie][me][ne][cf][if][of][qf][cg][lg][mg][og][qg][bh][gh][lh][bi][ii][bj][gj][ij][kj][mj][oj][pj][qj][ck][hk][kk][mk][nk][pk][rk][cl][dl][ml][ql][cm][gm][km][mm][pm][ln][pn][bo][co][go][ho][qo][ro][bp][ip][op][pp][eq][fq][iq][kq][lq][nq][gr][hr][kr][nr]

;B[li]C[B1]MN[1]
;W[mi]C[W2]MN[2]
;B[nh]C[B3]MN[3]
;W[ki]C[W4]MN[4]
;B[ng]C[B5]MN[5]
;W[nf]C[W6]MN[6]
;B[mf]C[B7]MN[7]

;
)
