(;GM[1]FF[4]CA[UTF-8]AP[CGoban:3]ST[2]
RU[Japanese]SZ[19]KM[7.50]
GN[ ]PW[Zi Yang Hu]PB[Sorin Gherman]WR[2p]BR[7d]DT[2017-08-11]GC[Zi Yang Hu http://agagd.usgo.org/player/19265/]EV[US Go Congress 2017, Masters]RO[8]PC[San Diego, CA]C[My opponent is a Chinese 2p player who currently lives in Canada, Hu Zi Yang. He won several US Masters editions.
Some comments in the fuseki by Li Yuankun 1p (Chinese pro).]RE[W+Resign]FG[259:]PM[2]
;B[pd]
;W[dc]
;B[pp]
;W[dp]
;B[cf]
;W[cd]
;B[dj]
;W[cl]
;B[ef]
;W[dg]
;B[df]
;W[gc]
(;B[fq]
;W[dq]
(;B[iq]LB[jp:A]C[Territory oriented; at A also possible if influence oriented (Li prefers A).]
;W[ci]
;B[di]
;W[cj]
;B[dk]
;W[ck]
(;B[ch]LB[dh:A]C[Not so good, the little extra territory is not worth the trouble, just play nobi at A. (Both Zi and Li made the same comment).]
;W[dl]LB[dh:A][ek:B]TR[ch]C[We can see why the triangle marked move is inferior: white can cut at A, after which white has forcing moves around B.]
;B[qn]
;W[qf]
;B[nc]
;W[qi]
;B[qe]
;W[pf]
(;B[rf]LB[qk:A]C[Should be at A to keep white weak.]
;W[rg]
(;B[oq]LB[re:A]C[Bad, according to Zi. Since black played hane, he should follow up and connect at A right away.]
;W[re]
;B[rd]
;W[sf]
(;B[io]
;W[qc]
;B[qd]
;W[rc]
;B[pc]
;W[sd]
;B[kc]
;W[ln]
;B[lp]
(;W[ql]LB[pm:A]C[Zi regretted this move, better at A to avoid black attacking.]
;B[pl]
;W[pk]
;B[ol]
;W[qm]
;B[pn]
;W[ll]
;B[ok]
;W[rn]
;B[ro]
(;W[jm]
;B[en]
(;W[do]LB[cn:A]C[I think at A is safer for white, considering the aji later in the game.]
;B[jk]
;W[hm]
;B[hk]
;W[ek]
;B[fj]
;W[gl]
;B[gd]
;W[hc]
;B[fc]
;W[fb]
;B[fd]
;W[gb]
;B[hd]
;W[hp]
;B[ip]
;W[fp]
;B[gq]
(;W[kd]
;B[jc]
;W[lc]
;B[lb]
;W[ld]
;B[mc]
;W[lg]
;B[be]
;W[bd]
;B[er]
;W[dr]
;B[in]
;W[im]
;B[gn]
(;W[jh]
;B[lk]
;W[fk]
;B[gj]
;W[pj]
;B[dn]
(;W[cn]LB[el:B][bn:A]C[At A is safer (preventing black from cutting at B), but white may not afford the points loss.]
;B[dm]
;W[dh]
;B[eh]
;W[mk]
;B[lj]
;W[cm]
;B[el]
;W[mp]
;B[mj]
;W[fn]C[Zi thought for a long time and came up with this move which leads to a ko - I didn't think about this during the game. ]
;B[fm]
;W[gm]
;B[fo]
;W[fl]
(;B[em]LB[lo:A]C[Should be at A, since this is a very easy ko for fight (very little to lose).]
;W[eo]
;B[fn]
;W[hn]
;B[go]
;W[ho]
;B[gp]
;W[kp]
;B[lq]LB[jr:A]C[Losing move, black's last chance is to play around A and try to kill white.]
;W[hq]
;B[hr]
;W[ir]LB[kq:C][gr:A][jr:B]TR[kp][lq]C[No chance for black after this, because of lack of liberties.

I had calculated a similar cutting sequence earlier during the game, but without the triangle marked exchange, when black A, white B, black C stops white, and failed to re-read it after the exchange.]
;B[gr]
;W[jr]
;B[ko]
;W[lr]
;B[kq]
;W[kr]
;B[mq]
;W[fs]C[Black resigned.])
(;B[lo]LB[jf:A]C[Black should play here and fight the ko, with many ko-threads around A.]))
(;W[bn]
;B[cn]
;W[bo]C[Close game.]))
(;W[kj]C[Zi: this is better than the game for white.]))
(;W[gp]C[white should play safe here]))
(;W[cn]))
(;W[jk]C[Zi: maybe better than the game.]))
(;W[pm]C[Safer for white.]))
(;B[jn]C[Maybe better locally; however it is not easy for black to play a moyo game, since white is so strong.]
;W[ln])
(;B[qk]C[This doesn't feel good either, playing towards white's very strong position.]
;W[jp]))
(;B[re]
;W[ql]
;B[oq]C[Better for black compared to the game. overall though white looks a little better, has more center influence, according to Li.

This was last of Li's comment (I only showed her the fuseki up to this point).

There are more comments later in the game by my opponent, Zi.]))
(;B[qk]C[Correct move for black.]
;W[od]
;B[oc]
;W[qc]
;B[pe]
;W[re]
;B[rd]
;W[rf]
;B[rc]
;W[oe]
;B[pc]
;W[or]C[Better than the actual game for black.]))
(;B[dh]C[Correct move.]
;W[em]C[Black ends up with thicker shape compared to the game.]))
(;B[jp]C[more aggressive, building influence]))
(;B[cn]C[My opponent likes this better than the game for black.]
;W[dn]
;B[do]
;W[eo]
;B[co]
;W[dm]
;B[cp]
;W[dq]
;B[cq]
;W[cr]
;B[br]
;W[dr]
;B[bm]
;W[bl]
;B[bj]LB[ak:A]C[Necessary, since A is sente for white against the black corner.]
;W[jq])
(;B[bj]C[Proper local move.]))
