Hi guys, nice to see so many responses.
Most of your comments are absolutely right, which means your level of analysis is higher than my level of play.
- you all saw that my harrassing of the black group at the bottom was not severe enough and lost tempo, so that black could form a good moyo at the top
- while attempting to make a good invasion, I neglected my left side group, which came under severe attack and almost died
Three concepts or attitudes stand out as marking the gap (if any)
- leaning maneuvers
- assessing which stones are (not) important and should (not) be saved/attacked
- (shying away of) ko
Here's a more specific self review, addressing your questions
But first: what to learn from this exercise? I think that you all have dan level analysis but either lack the confidence or some more local prowess to live up to it in your games. I still advocate a diet of fighting spirit / time management / concentration to bring your playing level closer to your level of understanding, but definitely doing lots of tsumego increases confidence in your local power and the local power itself.
(;GM[1]FF[4]CA[UTF-8]AP[CGoban:3]ST[2]
RU[Japanese]SZ[19]KM[0.00]
GN[Rank]PW[Knotwilg ]PB[jjssdd ]WR[3d]BR[3d]DT[2016- 9-18- 2- 0- 7]PC[Tygem Baduk]
;B[pd]
;W[dq]
;B[cd]
;W[pp]
;B[do]
;W[co]
;B[cn]
;W[cp]
;B[dn]
;W[fq]
;B[ic]C[All of you point out Black should make a base and I agree]
(;W[dk]C[I attack his stones, but probably should have done so through either of the variations]
;B[bk]LB[go:A]C[The slide is still providing a base. Black of course will be low, but he has taken compensation at the top for that already.
Instead, A would make for a floating group]
(;W[cj]
;B[bj]
;W[ch]
;B[ci]
;W[di]
;B[bi]
(;W[df]C[Many of you doubted the keima and I doubt it too. See var]
;B[ed]C[this is too easy for Black, while I am floating
Black has not been punished for his tenuki, on the contrary]
;W[qf]C[You questioned that White can leave the left side alone. I agree but at this point I was losing tempo and I decided to treat those stones more lightly
See vars]
(;B[ei]
;W[eh]
;B[ej]
;W[dj]
;B[gn]LB[fh:A]C[I expected him to continue at A.]
;W[cl]
;B[bl]
;W[fh]C[I play this move so that his two stones become useless.]
(;B[nd]C[See var]
(;W[pj]C[I respond here
See var]
;B[nq]
;W[pn]C[Some say I should play low. Yes, that might be more balanced/.]
;B[pr]
;W[qq]
;B[kq]
;W[qc]
;B[qd]
;W[rd]
;B[pc]
;W[rb]
;B[qb]
;W[rc]
;B[pl]
;W[lp]C[The leaning seems foreign to some, while I would think it is a common tactic.
See var]
(;B[lq]
;W[np]
;B[qh]
;W[qj]C[cutting Black]
;B[pf]
(;W[pg]C[Many questioned my tactics here and I'm not sure about them myself]
;B[qg]
(;W[of]
;B[rf]
;W[pe]
;B[qe]
;W[pb]
;B[ob]
;W[qa]
;B[oe]
;W[nk]
;B[ph]C[Black spends many stones here]
;W[mq]
;B[mr]
;W[mp]
;B[oq]
(;W[qr]C[This is slow, as many of you pointed out.]
;B[oa]
;W[pa]
;B[he]C[First punishment]
;W[iq]C[I'm stubbornly continuing my attack because I want to show Black that he cannot ignore my moves just like that]
;B[kp]
;W[ko]
;B[ir]
;W[jr]C[I chose the unusual hane because of]
;B[jq]C[this empty triangle. Black is short of liberties]
;W[kr]
;B[lr]
;W[hr]
;B[ip]
;W[hq]
;B[jo]
;W[kn]
;B[jn]
;W[km]C[But I hadn't read out all of this and Black connects on a large scale while I just get more points at the botoom, which is actually the well know result of hane-ing on the inside]
;B[hh]LB[he:A][hh:B][iq:2][qr:1]C[So Black gets his second move in a row here, growing his moyo and starting to unsettle my group.
Remember that previously it was too early to save the two stones, because I had B.
Now these stones become valuable again:]
;W[dc]C[Instead of caring about my group, I greedily try doing something about the top.
All of you saw that this was greedy]
;B[dd]
;W[gd]
;B[ff]C[My eyeshape is destroyed]
;W[gb]LB[ib:B][ec:A]C[This move is aiming at A or B. Do I know what I'm doing here? Probably not.]
;B[ec]
;W[ib]
;B[hc]
;W[hb]
;B[jb]
;W[jc]
;B[jd]
;W[kc]
;B[kb]
;W[kd]
;B[lb]
;W[ge]
;B[gf]
;W[hd]
;B[id]
;W[ie]
;B[je]
;W[hf]
;B[gc]
;W[jf]
;B[ke]
;W[hg]
;B[gg]
;W[gh]
;B[fe]
;W[jh]
;B[hi]
(;W[kf]
;B[hk]
;W[fc]
;B[le]
;W[fd]
;B[fb]
;W[he]
;B[ig]
;W[if]
;B[ee]
;W[eb]C[I saw this sequence but]
;B[db]
;W[fa]C[only now realized I lost sente and my left side was so weak]
;B[bf]
;W[gj]
;B[hj]
;W[fl]
;B[gk]
(;W[fj]
;B[gm]
;W[be]C[What was this move about?
I'm trying to gain tempo by threating to capture.
I don't think it works here but it creates more chances. I think I learnt this from doing tsumego.]
(;B[cf]
;W[ef]
(;B[cg]
;W[dg]
;B[bh]
;W[fg]C[One person asked: where are White's ko threats?
No idea but I believe this was my best chance.]
;B[dh]
;W[gl]C[this is one]
;B[hl]
;W[ch]
(;B[ra]C[Black should continue with local threats]
;W[dh]C[I realize that I have few or no more local ko threats. Moreover, I have follow up here. and the upper right is "only" 25 points
End of comments]
;B[qb]
;W[ce]
(;B[bb]
;W[af]
;B[bg]
;W[de]
;B[cc]
;W[bn]
;B[bm]
;W[bo]
;B[cm]
;W[jl]
;B[jj]
;W[kk]
;B[kj]
;W[im]
;B[hm]
(;W[in]
;B[ho]
;W[mf]
;B[lf]
;W[lg]
;B[me]
;W[fo]
;B[mg]
;W[lh]
;B[nf]
;W[lj]
;B[li]
;W[mi]
;B[ki]
;W[mh]
;B[ri]C[big endgame]
(;W[rj]
;B[ih]
;W[kh]
;B[fk]
;W[ek]
;B[el]
;W[em]
;B[fm]
;W[fl]
;B[en]
;W[dl]
;B[fn]
;W[hp]
;B[io]
;W[oi]
;B[sj]
;W[sk]
;B[si]
;W[rk]
;B[jg]
;W[kg]
;B[nh]
;W[ni]
;B[oh]
;W[pq]
;B[or]
;W[jk]
;B[ij]
;W[go]C[Black resigned here]
;B[hn]C[While the difference is only about 10 points])
(;W[fn]
;B[fm]
;W[em]
;B[fk]
;W[ek]
;B[el]
;W[dm]
;B[fl]
;W[dl]))
(;W[ho]
;B[in]
;W[go]))
(;B[de]
;W[cc]
;B[bd]
;W[bc]
;B[ae]
;W[ri]))
(;B[fk]
;W[ek]
;B[dh]))
(;B[eg]
;W[dg]
;B[fg]
;W[ce]
;B[de]
;W[bd]
;B[cc]
;W[bg]))
(;B[ce]
;W[cf]
(;B[bd]
;W[bg]
;B[ae]
;W[eg]C[for example this])
(;B[bg]
;W[bh]
(;B[ah]
;W[cg]
;B[bd]
;W[eg]C[again life])
(;B[bd]
;W[cg]
;B[eg]C[but here it doesn't]))))
(;W[fk]
;B[gi]
;W[fi]
;B[fj]))
(;W[hk]
;B[fd]
;W[jj]))
(;W[dc]
;B[dd]
;W[gc]C[either invade here])
(;W[he]C[or gently reduce here]))
(;W[rf]
;B[ph]
;W[og]
;B[oh]
;W[ng]))
(;W[qg]
;B[pg]
;W[rh]
;B[ri]
;W[ph]
;B[qi]
;W[pi]
;B[rg]
;W[rf]
;B[sh]
;W[rj]))
(;B[nl]C[I f Black jumps out]
;W[lq]C[I cut. Black has a lot of work now.]
;B[no]C[for example]
;W[om]
;B[ol]
;W[mn]C[We can think of this]))
(;W[fk]LB[qe:A][qj:B]C[Some of you would have captured these stones. Indeed that is very thick but I think it would be too slow at this stage
Black could kick at A or immediately pincer at B]))
(;B[fk]C[Would any of you be tempted as Black to lure out these stones? That would be premature eye stealing]
;W[hh]C[White will walk out. Now What did Black achieve?]))
(;B[eh]C[This is the move to make Black heavy]
(;W[dh]C[I should probably block])
(;W[ei]C[I can treat it lightly but]
;B[dh]
;W[fh]
;B[eg]LB[fi:A]C[the empty triangle is big here and White has another cut to handle])))
(;W[ed]C[I should perhaps have played lighter and faster]))
(;W[ed]C[should I play here now?]))
(;W[cj]C[full attack]
;B[ch]
;W[dl]C[Probably should play this way])
(;W[ci]C[miai]
(;B[cg]
;W[dl])
(;B[ck]
;W[cf]
;B[ed]
;W[ej])))