This is from a game between Kiyonari Tetsuya 9d (w) vs. Ishida Yoshio 9d (b) from the Ryusei-sen tournament.
It seems that Ishida was leading up to this point but then weariness overcame him and he missed something.
(A bit comforting to see that pros also suffer from this kind of mistakes)...
(;AB[ab]AB[ac]AB[ad]AB[bd]AB[be]AB[bf]AB[ce]AB[cc]AB[cb]AB[db]AB[da]AB[ea]AB[gb]AB[ib]AB[lb]AB[lc]AB[ma]AB[nb]AB[md]AB[nd]AB[ne]AB[fg]AB[gf]AB[hf]AB[ch]AB[eg]AB[fh]AB[ff]AB[fe]AB[jf]AB[je]AB[jd]AB[jh]AB[ji]AB[ii]AB[hh]AB[jj]AB[li]AB[lj]AB[lk]AB[ll]AB[mk]AB[nl]AB[nm]AB[nn]AB[no]AB[mo]AB[mp]AB[ls]AB[ks]AB[kr]AB[jr]AB[jq]AB[iq]AB[kp]AB[ko]AB[kn]AB[jn]AB[in]AB[hn]AB[hm]AB[hl]AB[hk]AB[gl]AB[gm]AB[fm]AB[fn]AB[en]AB[go]AB[fp]AB[ep]AB[fq]AB[er]AB[dq]AB[cq]AB[bq]AB[bp]AB[co]AB[cn]AB[bn]AB[an]AW[cp]AW[dp]AW[do]AW[eo]AW[fo]AW[dn]AW[dm]AW[cm]AW[cl]AW[bm]AW[am]AW[dk]AW[em]AW[fl]AW[fk]AW[gk]AW[hj]AW[ij]AW[ik]AW[il]AW[im]AW[jm]AW[kl]AW[kk]AW[mn]AW[ln]AW[lo]AW[lp]AW[lq]AW[lr]AW[kq]AW[mq]AW[ms]AW[nr]AW[np]AW[gi]AW[gh]AW[gg]AW[fi]AW[eh]AW[dh]AW[cg]AW[bg]AW[ag]AW[af]AW[cf]AW[df]AW[de]AW[dd]AW[cd]AW[dc]AW[eb]AW[ec]AW[fb]AW[fa]AW[gc]AW[hb]AW[fd]AW[ee]AW[ic]AW[hd]AW[he]AW[ge]AW[id]AW[jc]AW[kc]AW[kb]AW[ka]AW[la]AW[kd]AW[ld]AW[le]AW[me]AW[mf]AW[nf]AW[lg]AW[lh]AW[kh]AB[mh]AB[mg]AW[mi]AW[mj]AW[nj]AB[oi]AB[oh]AB[og]AB[of]AB[pg]AB[pe]AB[qe]AB[qd]AB[qc]AB[rc]AW[pd]AB[sc]AB[sd]AW[rd]AW[re]AW[rf]AW[qf]AW[pf]AW[qg]AW[ph]AW[pi]AW[pj]AW[oj]AW[qj]AW[rj]AW[rk]AW[ok]AW[ol]AW[om]AW[pm]AW[qm]AW[ql]AW[sl]AW[se]AB[rl]AB[rm]AB[sn]AB[qn]AB[pn]AB[on]AW[op]AW[pp]AW[po]AB[qo]AB[qp]AB[qq]AB[qr]AB[pq]AW[oq]AW[or]AW[pr]AW[ps]AW[qs]AB[rs]AB[rr]AW[kg]AB[hi]TR[hi]C[Black just played this marked move, and gave white a chance to win the game.
Play at the crucial point.]AP[goproblems]
(;W[if];B[hg];W[jg]C[Well done!
Black resigns :)RIGHT])
(;W[ig];B[jg]TR[hg]TR[if]C[Miai - white gains nothing...]))