(;GM[1]FF[4]SZ[19]
GN[175-177]
PC[http://senseis.xmp.net/?MostDifficultProblemEver/ThreeAmateursSolution]AP[GoWiki:2009]
DT[2011-02-25]
C[Diagram from http://senseis.xmp.net/?MostDifficultProblemEver/ThreeAmateursSolution

175-177]
PL[B]

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][mf][nf][of][eg][fg][og][rg][bh][ch][dh][fh][oh][ph][qh][rh][sh][bi][ci][di][fi][mi][ni][oi][pi][dj][fj][lj][mj][rj][ek][lk][pk][qk][rk][sk][al][el][ll][ol][pl][ql][dm][em][lm][pm][qm][rm][dn][fn][ln][mn][qn][co][fo][no][oo][po][bp][cp][ep][fp][np][pp][sp][bq][fq][pq][qq][sq][br][cr][er][nr][pr][qr][sr][as][bs][es][ns][os][ps][qs]
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][qf][rf][sf][ag][bg][cg][dg][gg][hg][kg][lg][mg][ng][pg][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][cl][dl][hl][jl][ml][nl][bm][cm][hm][jm][mm][nm][om][an][bn][cn][en][hn][jn][kn][nn][on][pn][ao][bo][ho][jo][lo][mo][ap][hp][jp][kp][lp][mp][aq][eq][gq][hq][lq][nq][oq][ar][fr][hr][ir][jr][kr][lr][mr][fs][gs][hs][ms]

;B[sj]C[B175]MN[175]
;W[sg]C[W176]MN[176]
;B[mk]C[B177]MN[177]

;
)
