(;GM[1]FF[4]SZ[19]
GN[Solution 61-70]
PC[http://senseis.xmp.net/?MostDifficultProblemEver/Solution]AP[GoWiki:2009]
DT[2009-04-22]
C[Diagram from http://senseis.xmp.net/?MostDifficultProblemEver/Solution

Solution 61-70]
PL[B]

AB[ra][hb][lb][fc][lc][bd][ld][ce][de][fe][le][me][oe][pe][bf][if][mf][of][ig][jg][og][dh][jh][oh][ph][qh][rh][sh][di][ii][ji][mi][ni][oi][pi][aj][fj][ij][lj][mj][ak][ek][ik][lk][qk][rk][sk][al][el][il][ll][ol][pl][ql][am][bm][em][im][lm][qm][rm][dn][fn][in][ln][mn][qn][co][fo][io][ko][no][oo][po][bp][cp][ep][ip][np][pp][sp][fq][iq][jq][kq][lq][mq][pq][qq][sq][cr][gr][nr][pr][sr][bs][ns][os][ps]
AW[qa][ib][jb][mb][rb][hc][qc][cd][jd][nd][od][ie][ke][qe][re][df][ff][jf][pf][bg][cg][dg][gg][hg][kg][lg][ng][ah][hh][ih][kh][hi][ki][ri][si][bj][cj][hj][jj][kj][nj][oj][pj][qj][dk][hk][jk][nk][ok][dl][hl][jl][ml][nl][rl][sl][hm][jm][mm][om][sm][bn][cn][en][hn][jn][nn][on][pn][rn][sn][ho][jo][mo][qo][ro][so][ap][hp][jp][kp][lp][mp][op][qp][rp][eq][hq][oq][rq][ar][hr][ir][jr][kr][lr][mr][or][rr][ms][rs]
CR[mq][oq]
LB[nq:a]

;B[hf]C[B61]MN[61]
;W[he]C[W62]MN[62]
;B[gf]C[B63]MN[63]
;W[ge]C[W64]MN[64]
;B[fg]C[B65]MN[65]
;W[ef]C[W66]MN[66]
;B[fh]C[B67]MN[67]
;W[hs]C[W68]MN[68]
;B[ee]C[B69]MN[69]
;W[cm]C[W70]MN[70]

;CR[mq][oq]
LB[nq:a]
)
