Game B-13Comparing this afternoon's game to my previous comments here I think is pretty interesting. First off, I'm happy to report that, even playing White, I think I managed to avoid over-reaching in the late middle game (although White-148 is questionable). Instead, I did manage to push the game to counting, where... I lost. Except that my opponent made a last-second mistake that ended up switching the game from a 2.5 point loss, to a 2.5 point win. All that said, I think the game was really determined by some misplays in the upper right. Clearly, there is more work to be done.
Here's the (somewhat difficult) review:
https://gokibitz.com/kifu/NkjRYPr7z
(;GM[1]FF[4]CA[UTF-8]SZ[19]PW[studying]WR[5d]PB[Tygem player]BR[5d]KM[6.5]RE[W+2.5]DT[2016-12-10];B[pd];W[dc];B[qp];W[dq];B[do];W[co];B[dp];W[cp];B[eq];W[cn](;B[dn]C[I had expected the variation.];W[dm];B[cq];W[dr];B[bq];W[cr];B[cm];W[cl];B[br];W[er];B[bm];W[bn];B[bl];W[bp];B[ck];W[em];B[fp]C[Usually this is at F5. I'm not sure if my approach was the best way to make something out of this change, but I got a bit more along the bottom and Black's shape will prove a problem throughout the game.];W[fq];B[fn];W[ep];B[fo];W[ek];B[ap];W[ao];B[ch];W[hq]C[At this point I also strongly considered G8, but decided that I could run with that group if necessary, and didn't want Black to press down on the bottom with G3.];B[io];W[gl]C[Getting both this and H3 felt pretty nice.];B[jp];W[nc]C[I'm not sure about this direction. Something tells me approaching at R14 would have been better.];B[kd];W[qc]C[For similar reasons to the last comment, should this be R14?];B[pc];W[qd];B[pe];W[pb];B[ob];W[qb];B[oc];W[qf];B[qh]C[This seemed like a bit of an overplay to me, but I think I tried too hard to prove that and ended up making things difficult for myself. ];W[pf]C[Particularly given that I already have a weak group at G8, I should probably just play R13 and let Black worry about his thin shape, while I play elsewhere.];B[of];W[og];B[pg];W[rg];B[nf](;W[ng]C[I wonder if the variation is better.];B[mg];W[oi];B[qj];W[mf];B[nd];W[lf];B[lg];W[kf];B[ni];W[oh];B[oj];W[mh];B[kg](;W[nj]C[I couldn't read it quite perfectly, but the variation seemed too dangerous.];B[jf];W[pj];B[qk](;W[op]C[I looked at the variation, but it didn't seem promising (although now it looks like there is one line that might have worked).
I considered this move a probe, trying to determine if Black would let me separate and attack the R9 stones, or live on the bottom.];B[jl];W[ok]C[This was both to strengthen my group to try to attack R9, and to avoid letting Black have his splitting attack.];B[pn];W[qq];B[rq];W[pq];B[ro];W[lq]C[This makes Black's previous play at K4 look awfully good, but there's no real way around it I think.];B[ei];W[fi];B[fh];W[gi];B[ej];W[fk](;B[jg]C[This is a very nice, thick move that removes tons of aji, but I expected Black to try to make my group heavier first with the variation.];W[gh];B[ce];W[cd];B[de];W[fc];B[hc];W[im]C[This felt like the vital point for me.];B[lp](;W[mp]C[I debated sliding under, but was worried it would give Black too much power to attack my weak group(s).];B[kq];W[lo];B[ko];W[kp];B[ar](;W[lp]C[I thought hard about which ko I'd rather fight, but then realized that even though the corner is can be a double-ko, then Black would have infinite threats. See the variation.];B[am];W[bs];B[an];W[aq];B[hm];W[as];B[hl];W[hk];B[ik];W[ij]C[I spent some time reading this in the game, but I'm still not 100% confident it works. That said, Black didn't test me.];B[jj];W[ii];B[kn];W[fm];B[gm];W[dl]C[I managed to live in sente, allowing me to begin the (rather complicated) endgame.];B[bj];W[pl];B[ql];W[gb];B[hb];W[ha];B[ia];W[ga];B[jb];W[bd]C[Only after playing this did I realize that A15 wouldn't be sente. I wonder if I should have saved this and tried to get B15 later.];B[be];W[fg];B[ad];W[ac];B[ae];W[bc];B[gc];W[eb];B[qr];W[pr];B[rs];W[jr];B[jq];W[kr];B[ps];W[os]C[I was reasonably confident I had enough ko threats, but this still feels a bi reckless.];B[qs];W[or];B[eh];W[oa];B[na];W[pa];B[nb];W[hf];B[he];W[on]C[I think I should take S12 first, for reasons that will be clear shortly.];B[pm];W[om];B[rh];W[sh]C[This is wrong and I should know better. I need to take R13 first.];B[si];W[sg];B[qe];W[re];B[rf];W[sf];B[qi];W[qg];B[iq];W[ir];B[hp];W[gq]C[I had already spotted the nice aji at J8, and was just waiting for the right time to capture E6.];B[gf];W[hg];B[ff];W[lm]C[This felt bigger than G13, but I'm pretty bad at counting endgame in the middle of the board.];B[lk];W[ml];B[gg];W[po];B[qo];W[en]C[At this point, I felt 6 points was worth it, but I wish I could have disguised this better.];B[km];W[ll];B[gp]C[I missed that this push was double-sente.];W[eo];B[ln];W[mn];B[fj];W[gj];B[lj];W[fd];B[mi];W[nh]C[Was J15 bigger?];B[hh];W[ih];B[ig];W[hi];B[gd];W[kl];B[kk];W[ee];B[ef];W[fe]C[Was L11 bigger?];B[if];W[hh];B[lh];W[mj];B[li];W[dk];B[dj];W[dd];B[pp];W[oo];B[ph];W[ge];B[eg];W[mk];B[pk];W[ol];B[ji];W[jh];B[kh];W[oj]C[At this point my opponent asked to count, but he still needs to play something around R7, so I declined. After Black plays that, he should win by 2.5. Instead, however, Black played the inexplicable next move...];B[pi];W[sj];B[sk];W[ri];B[rj];W[si];B[rl]C[White wins by 2.5 thanks to Black's last minute mistake.])(;W[am];B[al];W[bs];B[an];W[aq];B[lp];W[ne];B[oe];W[kp];B[ap]C[Black now has infinite threats.];W[am]))(;W[kq](;B[mp];W[nq])(;B[np];W[nq];B[mq];W[mr];B[mp];W[nr];B[kp])))(;B[fj];W[gj];B[hk];W[gk];B[jg]))(;W[jg];B[li];W[je];B[if](;W[ke]C[In my reading during the game, I thought I had to play here, I missed that I could push.];B[ie];W[jd];B[id];W[jc];B[ic];W[ib];B[hb](;W[kb];B[mc])(;W[md];B[mc](;W[ne];B[oe];W[od];B[nb];W[nd];B[ld];W[me];B[lb])(;W[lc];B[mb];W[me];B[lb];W[kb];B[ne];W[ja])))(;W[jh];B[ki];W[ie];B[hf];W[ke];B[ok];W[mi];B[mk];W[mj];B[lk];W[nk];B[nl];W[lj];B[kj];W[kk]C[This looks playable?])))(;W[jf];B[li](;W[pj];B[pk];W[nj];B[ok];W[mi];B[mk];W[mj];B[lj];W[nk];B[nl]C[White has a shortage of liberties.])(;W[nj];B[mj];W[nk];B[pi];W[mi];B[lh];W[nh];B[lk];W[pk];B[pj];W[ok];B[ql]C[Maybe this is playable.])))(;W[oh];B[qj];W[mh];B[mg];W[lh]C[White has two weak groups, but neither is in serious trouble right now.]))(;B[dr];W[cq];B[kq]))