(;GM[1]FF[4]CA[UTF-8]AP[CGoban:2]ST[2]
RU[Japanese]SZ[19]KM[6.50]
PW[SangPunYu]PB[Walther]
;B[pd]CR[pd]
;W[dq]CR[dq]
;B[dd]CR[dd]
;W[qp]CR[qp]
;B[do]CR[do]
;W[dl]CR[dl]
;B[fo]CR[fo]
;W[gq]CR[gq]
;B[cq]CR[cq]
;W[cr]CR[cr]
;B[di]CR[di]
;W[cp]CR[cp]
;B[co]CR[co]
;W[qf]CR[qf]
;B[nc]CR[nc]
;W[pj]CR[pj]
;B[fl]CR[fl]C[This move is thick, but B can consider allowing white to run, to reduce white's area.]
;W[nq]CR[nq]
(;B[ek]CR[ek]C[This move is too slow! f17 is the place]
;W[fc]CR[fc]
;B[hc]CR[hc]
;W[cf]CR[cf]
;B[cc]CR[cc]
;W[hd]CR[hd]
;B[ic]CR[ic]
;W[dj]CR[dj]
(;B[ei]CR[ei]C[wrong direction. Play at c12, let white run, white on upper side will all die]
;W[bi]CR[bi]
(;B[bh]CR[bh]C[This move is crude, and ends in gote. Just e14 so that white has to make life]
;W[ch]CR[ch]
;B[ci]CR[ci]
;W[bg]CR[bg]
;B[bj]CR[bj]
;W[ah]CR[ah]
;B[cj]CR[cj]
;W[ee]CR[ee]
;B[ec]CR[ec]
;W[fd]CR[fd]
;B[fb]CR[fb]
;W[bo]CR[bo]C[too small, white should jump at p14]
;B[bn]CR[bn]
;W[bp]CR[bp]
;B[ql]CR[ql]
;W[bm]CR[bm]C[too small]
(;B[qj]CR[qj]C[keima is better. Ko is not good]
;W[qi]CR[qi]
;B[pk]CR[pk]
;W[rj]CR[rj]
;B[rk]CR[rk]
;W[qk]CR[qk]
;B[de]CR[de]
;W[qj]CR[qj]
;B[df]CR[df]
;W[bd]CR[bd]
;B[pp]CR[pp]
;W[pq]CR[pq]
;B[qq]CR[qq]
(;W[rp]CR[rp]C[White should atari first]
;B[oq]CR[oq]
;W[pr]CR[pr]
;B[op]CR[op]C[this is crude, black should extend to q5, then p2 and r5 are sente]
;W[or]CR[or]
;B[np]CR[np]
;W[mp]CR[mp]
;B[mq]CR[mq]
;W[nr]CR[nr]
;B[on]CR[on]
;W[lp]CR[lp]
;B[nk]CR[nk]C[this move is a bit empty. r5 helps black live]
;W[qc]CR[qc]
;B[qd]CR[qd]
;W[rd]CR[rd]
;B[pc]CR[pc]
;W[rb]CR[rb]
;B[qb]CR[qb]
;W[rc]CR[rc]
;B[ng]CR[ng]
;W[qn]CR[qn]
;B[hf]CR[hf]
;W[pm]CR[pm]
;B[ni]CR[ni]
;W[mh]CR[mh]
;B[nh]CR[nh]
;W[mj]CR[mj]
;B[nj]CR[nj]
;W[kj]CR[kj]
;B[ll]CR[ll]
;W[jk]CR[jk]
;B[jm]CR[jm]
;W[il]CR[il]
;B[hn]CR[hn]C[Suddenly the game is turned around, white is very dangerous. Commentary ends here.]
;W[jh]CR[jh]
;B[ij]CR[ij]
;W[im]CR[im]
;B[in]CR[in]
;W[kl]CR[kl]
;B[km]CR[km]
;W[mk]CR[mk]
;B[ml]CR[ml]
;W[lk]CR[lk]
;B[li]CR[li]
;W[jl]CR[jl]
;B[mi]CR[mi]
;W[nl]CR[nl]
;B[ln]CR[ln]
;W[if]CR[if]
;B[id]CR[id]
;W[hg]CR[hg]
;B[ie]CR[ie]
;W[he]CR[he]
;B[gf]CR[gf]
;W[gg]CR[gg]
;B[ff]CR[ff]
;W[hj]CR[hj]
;B[hi]CR[hi]
;W[ii]CR[ii]
;B[ji]CR[ji]
;W[ih]CR[ih]
;B[ki]CR[ki]
;W[jj]CR[jj]
;B[gi]CR[gi]
;W[lj]CR[lj]
;B[gl]CR[gl]C[Further moves omitted, B+R])
(;W[po]CR[po]
;B[op]CR[op]
;W[oq]CR[oq]))
(;B[rj]CR[rj]))
(;B[ef]CR[ef]
;W[bk]CR[bk]
;B[nf]CR[nf]))
(;B[ch]CR[ch]
;W[ej]CR[ej]
;B[fh]CR[fh]))
(;B[fc]CR[fc]))