(;GM[1]FF[4]CA[UTF-8]AP[CGoban:3]ST[2]
RU[Japanese]SZ[19]KM[6.50]
PW[Cho U]PB[Ichiriki Ryo]WR[9p]BR[4p]DT[2014-03-21]EV[39th Japanese Kisei Preliminary]RE[B+7.50]
;B[qd]
;W[qp]
;B[dd]
;W[cp]
;B[eq]
;W[hp]
(;B[nq]LB[fp:A]C[Instead of playing at A, playing tenuki (this kakari) keeps things more flexible.]
(;W[dq]LB[pq:A]C[White will not respond at A]
;B[ep]
;W[dn]
(;B[jq]
;W[fo]
;B[hr]
(;W[op]C[A good choice.]
;B[np]
;W[oq]
;B[no]C[This is an even result]
(;W[oo]C[This push was too much.]
;B[on]
(;W[nn]LB[oo:A]C[White does not want to cut here, but he has to do so at this moment.
Another reason why A was a bad move.]
;B[om]
;W[mn]
;B[qn]
(;W[nr]C[White must play this to prevent black from playing the hane]
;B[mr]
;W[or]
;B[lp]SQ[mn][nn]C[The two marked stones now cut two strong black groups.
They are almost dame.]
;W[lr]
;B[lq]
;W[oc]
;B[pe]LB[oc:B][nn:A]C[White is very busy with two weaks groups at A and B.
]
;W[pj]C[White however has no choice but to invade, else the right becomes too big.
White got even more busy now though and needs to handle three weak groups.]
;B[ph]SQ[om][on][qn]C[Black plays from this side because he does not think his 3 marked stones are weak.]
;W[jp]
;B[kr]
(;W[qm]C[White has to fight back]
(;B[rm]C[A strong move by black, black does not compromise.]
;W[ql]
;B[po]
;W[ro]
;B[rn]
;W[nl]
;B[ol]
;W[nk]
;B[ok]
;W[oj]
;B[nj]
(;W[ni]
;B[mj]
;W[nm]C[White starts filling dame.
Black had already expected this sequence.]
(;B[rj]
(;W[qi]
;B[rl]
(;W[pk]
;B[qh]
;W[ri]
;B[rh]
;W[rk]
;B[sk]
;W[qj]
;B[qk]
;W[li]
;B[lj]
;W[rk]
;B[lm]
(;W[kj]C[White has to answer to the ko threat, but first makes an exhange.]
;B[kk]
;W[ln]
;B[kn]
;W[km]
;B[ll]
;W[ko]
;B[jn]
;W[in]SQ[nk][nl][nm][ln][mn][nn]C[White can not escape and needs to sacrifice his marked stones]
;B[jm]
;W[im]
;B[jl]
;W[pn]
;B[pm]
;W[sj]
;B[lo]C[White loses the semeai by one liberty and black is much better.]
(;W[cf]C[Black is well ahead, comments stop here.]
;B[fc]
;W[lc]
;B[ci]
;W[cd]
;B[cc]
;W[bc]
;B[ce]
;W[bd]
;B[de]
;W[be]
;B[cb]
;W[df]
;B[bg]
;W[bf]
;B[cl]
;W[cm]
;B[dl]
;W[ir]
;B[iq]
;W[gr]
;B[hq]
;W[gq]
;B[dr]
;W[cr]
;B[gs]
;W[fs]
;B[gp]
;W[fp]
;B[go]
;W[gn]
;B[ho]
;W[fq]
;B[fn]
;W[eo]
;B[em]
;W[hd]
;B[fe]
;W[dh]
;B[fi]
;W[di]
;B[cj]
;W[fh]
;B[gh]
;W[ff]
;B[fg]
;W[gf]
;B[hb]
;W[eg]
;B[eh]
;W[ei]
;B[fj]
;W[bl]
;B[bm]
;W[bn]
;B[bk]
;W[ib]
;B[hc]
;W[ic]
;B[id]
;W[gd]
;B[jd]
;W[kc]
;B[ee]
;W[fh]
;B[ge]
;W[he]
;B[hf]
;W[ie]
;B[hg]
;W[gg]
;B[hh]
;W[je]
;B[ef]
;W[bh]
;B[fg]
;W[am]
;B[dj]
;W[jh]
;B[pc]
;W[ij]
;B[jj]
;W[ii]
;B[ik]
;W[ob]
;B[pb]
;W[gj]
;B[hj]
;W[ej]
;B[ek]
;W[gi]
;B[eh]
;W[pl]
;B[pn]
;W[fh]
;B[fk]
;W[hi]
;B[hk]
;W[pp]
;B[mo]
;W[sh]
;B[od]
;W[rg]
;B[nc]
;W[nb]
;B[mb]
;W[mc]
;B[nd]
;W[lb]
;B[jg]
;W[kg]
;B[kf]
;W[ig]
;B[ih]
;W[jf]
;B[ji]
;W[ki]
;B[gk]
;W[re]
;B[rd]
;W[pg]
;B[ch]
;W[cg]
;B[bb]
;W[bi]
;B[oh]
;W[pf]
;B[mi]
;W[fd]
;B[ec]
;W[gc]
;B[gb]
;W[fb]
;B[eb]
;W[sd]
;B[sc]
;W[sf]
;B[se]
;W[en]
;B[fm]
;W[sd]
;B[rb]
;W[mg]
;B[nh]
;W[mh]
;B[oa]
;W[mf]
;B[of]
;W[og]
;B[oi]
;W[ma]
;B[aj]
;W[ag]
;B[md]
;W[ld]
;B[qg]
;W[nf]
;B[qf]
;W[oe]
;B[rf]
;W[hs]
;B[sg]
;W[ns]
;B[ms]
;W[rg]
;B[se]
;W[bj]
;B[ak]
;W[ab]
;B[jr]
;W[sl]
;B[mk]
;W[sn]
;B[ml]
;W[sm]
;B[mm]
;W[ha]
;B[fa]
;W[is]
;B[js]
;W[gs]
;B[me]
;W[le]
;B[ng]
;W[of]
;B[ai]
;W[ah]
;B[qo]
;W[rp]
;B[ck]
;W[al]
;B[pa]
;W[na]
;B[ga]
;W[ia]
;B[sg]
;W[dg]
;B[eh]
;W[si]
;B[fh]
;W[ac]
;B[ba]C[B+7.5])
(;W[pl]C[Later white can can connect underneath]
;B[pn]
;W[pp]
;B[mo]
;W[sn]
;B[mk]
;W[sl]
;B[ml]C[White can connect underneath in sente and gets about 20 points on the right side.Black has at least 30 points in the center and lower side.
White's lower left is compareable to black's upper right.
Black has a stone at the upper left corner.
All in all black is more than 10 points ahead.
]
;W[ir]C[There seams to be aji here for white, but black can fight back.]
;B[fr]
;W[iq]
;B[dr]
;W[cr]
;B[cs]
;W[bs]
;B[ds]
;W[bq]
;B[gq]
;W[fp]
;B[hs]C[Black is alive.]))
(;W[pn]C[White can not start to fill black's liberties.]
;B[pm]
;W[pl]
;B[pn]
;W[sj]
;B[ln]C[White has four liberties, black has five and wins the capturing race.]))
(;W[qh]C[Too easy for black]
;B[qk]LB[nj:A][nn:B]C[The cut at A is very strong compared to the cut at B.
The strategy to cut at B was already wrong for white.]))
(;W[rl]C[White can not block here]
;B[pk]
;W[qj]
;B[qk]C[Black has cut white]))
(;B[oi]C[When black cuts here, it is not sure what will happen in the capturing race, it is scary.]))
(;W[qi]C[Not possible for white]
;B[nm]
;W[mm]
;B[ml]
;W[mk]
;B[ll]LB[mj:A][lm:B]C[A and B are miai. White has been captured]))
(;B[ql]C[Black could play here, it would be a compromise.]
;W[rm]
;B[pl]
;W[rn]C[Even this would be enough for black]))
(;W[nl]C[Jumping here is not good]
;B[qk]
(;W[qj]
;B[ok]C[Black escapes.])
(;W[pk]
;B[qj]C[Black connects])))
(;W[]
;B[or]C[This hane would be sente for black]
;W[pr]
;B[nr]LB[qr:A]C[There is aji at A which white needs to defend.]))
(;W[pn]C[White can not play like this, it is too submissive.]))
(;W[cf]LB[no:4][np:2][op:1][oq:3]C[Now white should take the big point.
It is difficult to judge who gained more with the exchanges from 1-4 on the lower side.]))
(;W[pq]C[This move is possible, but the move played in the game shows more fighting spirit]
;B[no]
;W[qm]
;B[ci]C[Black gets the big point on the left side and feels a bit better])
(;W[cf]C[This is very big. And it is ok for white to play tenuki.
The left side is the biggest area
]
(;B[fc]
;W[di]C[Also possible for white])
(;AE[nq]AB[oq]LB[nq:B][oq:A]C[When the black move on the lower side would be at A instead of B, it's not such a good idea for white to play tenuki.])))
(;B[fo]C[This kosumi would be slow]
;W[kp]
;B[qq]
;W[pq]
;B[pp]
;W[qr]
;B[rq]
;W[op]
;B[po]
;W[oq]
;B[rr]
;W[pm]
;B[on]
;W[np]
;B[om]
;W[pk]
;B[qm]
;W[dl]C[White is better here.
White plays on both sides.]))
(;W[pq]C[When white responds like this]
;B[kq]
;W[dq]
;B[cj]
;W[ep]C[Black already has a base at the bottom and therefore reduced the bottom part.
Black can be satisfied]))
(;B[fp]
;W[dn]
;B[cr]
;W[cj]
;B[nq]C[A common, easy way to play for black, but the game is better]))
