(;GM[1]FF[4]SZ[19]
GN[162-166]
PC[http://senseis.xmp.net/?MostDifficultProblemEver/ThreeAmateursSolution]AP[GoWiki:2009]
DT[2011-02-25]
C[Diagram from http://senseis.xmp.net/?MostDifficultProblemEver/ThreeAmateursSolution

162-166]
PL[W]

AB[fa][la][ma][na][ra][eb][lb][nb][dc][fc][gc][lc][bd][ed][gd][ld][pd][ce][de][ee][fe][le][me][oe][pe][af][bf][cf][gf][hf][if][mf][nf][of][eg][fg][ig][jg][og][rg][bh][ch][dh][fh][jh][oh][ph][qh][rh][sh][bi][ci][di][fi][ii][ji][mi][ni][oi][pi][dj][fj][ij][lj][mj][rj][ek][ik][lk][mk][qk][rk][sk][al][el][il][ll][ol][pl][ql][dm][em][im][lm][qm][rm][dn][fn][in][ln][mn][qn][co][fo][io][no][oo][po][bp][cp][ep][fp][ip][np][pp][sp][bq][fq][iq][jq][kq][lq][mq][nq][pq][qq][sq][br][cr][er][nr][pr][sr][as][bs][es][ns][os][ps]
AW[ha][ka][oa][qa][fb][gb][ib][jb][kb][mb][ob][rb][hc][kc][mc][nc][pc][qc][cd][hd][jd][kd][nd][od][qd][ge][he][ie][ke][ne][qe][re][df][ef][ff][jf][lf][pf][rf][sf][ag][bg][cg][dg][gg][hg][kg][lg][mg][ng][qg][ah][hh][ih][kh][mh][nh][ai][hi][ki][li][qi][ri][si][aj][bj][cj][gj][hj][jj][kj][nj][oj][pj][qj][bk][ck][dk][hk][jk][kk][nk][ok][pk][cl][dl][hl][jl][ml][nl][rl][sl][bm][cm][hm][jm][mm][om][sm][an][bn][cn][en][hn][jn][kn][nn][on][pn][rn][sn][ao][bo][ho][jo][lo][mo][qo][ro][so][ap][hp][jp][kp][lp][mp][qp][rp][aq][eq][gq][hq][rq][ar][fr][hr][ir][jr][kr][lr][mr][rr][fs][gs][hs][ms][rs]

;W[oq]C[W162]MN[162]
;B[ak]C[B163]MN[163]
;W[kl]C[W164]MN[164]
;B[bl]C[B165]MN[165]
;W[am]C[W166]MN[166]

;
)
