Here's a game where I tried to concentrate on time management and reading. Obviously one finds lots of reading mistake but overall the usage of the overtime periods was quite well executed according to the plan.
(;GM[1]FF[4]CA[UTF-8]AP[CGoban:3]ST[2]
RU[Japanese]SZ[19]KM[0.50]TM[60]OT[5x30 byo-yomi]
PW[Artevelde]PB[Gofishing]WR[1d]BR[1k]DT[2015-07-19]PC[The KGS Go Server at
http://www.gokgs.com/]C[Gofishing [1k\]: hi, gg
Artevelde [1d\]: hi
]RE[W+5.50]
;B[pq]BL[54.183]C[Artevelde [1d\]: enjoy
]
;W[pd]WL[54.044]
;B[dp]BL[51.499]
;W[dd]WL[51.389]
;B[qf]BL[49.332]
;W[qh]WL[44.527]
;B[qc]BL[47.076]
;W[qd]WL[39.441]
;B[pc]BL[45.672]
;W[od]WL[34.405]
;B[rd]BL[44.127]
;W[re]WL[31.009]
;B[rc]BL[43.321]
;W[qe]WL[24.786]
;B[nc]BL[42.145]LB[qh:A]C[I tried to spend some time here thinking about the next move, but when I played A, I already had set my mind on the next move]
;W[po]WL[20.333]
;B[qo]BL[34.137]
;W[qn]WL[14.937]
;B[qp]BL[33.181]LB[pm:B][pn:A]C[Here I thought a bit about A or B]
;W[pm]WL[30]OW[5]C[I chose B because it cooperates better with the other group]
;B[nq]BL[30.89]
;W[me]WL[30]OW[5]LB[qh:A][qi:B][qj:C]C[Up until here, the formation of a moyo went according to my wishes
On the other hand, A would be much better at B or C]
;B[nd]BL[26.366]C[I thought this was a mistake]
;W[ne]WL[30]OW[5]
;B[ld]BL[19.988]C[I spent some time thinking about the next move but I felt that cutting would be good anyhow]
;W[oc]WL[30]OW[5]
;B[ob]BL[18.069]
;W[md]WL[30]OW[5]
;B[mc]BL[16.389]
;W[lc]WL[30]OW[5]
;B[kc]BL[14.515]
;W[lb]WL[30]OW[5]
;B[mb]BL[13.412]
;W[ma]WL[30]OW[5]
;B[nb]BL[11.512]
(;W[kb]WL[30]OW[5]C[I thought about the cut but didn't think about the ladder]
;B[jc]BL[9.149]C[But now I should really think about the ladder]
(;W[jb]WL[30]OW[5]C[It is really unforgivable I did not think about it]
;B[ic]BL[7.693]C[Now I'm all set for crawling]
;W[ib]WL[30]OW[5]
;B[hc]BL[6.004]
;W[hb]WL[30]OW[5]
;B[gc]BL[4.55]
;W[le]WL[30]OW[5]
;B[kd]BL[2.862]
;W[gb]WL[30]OW[5]
(;B[fc]BL[1.548]C[Black misses an enormous chance here]
;W[eb]WL[30]OW[5]
;B[fb]BL[30]OB[5]
;W[fa]WL[30]OW[5]
;B[ec]BL[30]OB[5]
;W[dc]WL[30]OW[5]
;B[db]BL[30]OB[4]
;W[ea]WL[30]OW[5]
;B[cb]BL[30]OB[4]C[There wasn't much to think about in all of this, but Black already lost an overtime period]
;W[bc]WL[30]OW[5]
;B[ga]BL[30]OB[4]
;W[ha]WL[30]OW[5]
;B[bb]BL[30]OB[4]
;W[cc]WL[30]OW[5]C[I had felt I would win the capturing race, but it's close]
;B[ef]BL[30]OB[3]C[Here I thought about a couple of moves]
(;W[jf]WL[30]OW[5]C[Is this playing from strength or building?]
;B[cf]BL[30]OB[3]
(;W[ab]WL[30]OW[5]C[This was timid. I wasn't reading at all]
;B[of]BL[30]OB[3]
;W[oe]WL[30]OW[5]
;B[ph]BL[30]OB[3]
;W[qi]WL[30]OW[5]
;B[pi]BL[30]OB[3]
;W[pj]WL[30]OW[5]
;B[ni]BL[30]OB[3]C[This wasn't very strong by black either]
;W[fe]WL[30]OW[5]
;B[hf]BL[30]OB[3]
;W[ff]WL[30]OW[5]
;B[fg]BL[30]OB[3]
;W[gg]WL[30]OW[5]
;B[gf]BL[30]OB[3]
;W[fh]WL[30]OW[5]C[Since this cut breaks the ladder, I didn't consider any alternative]
;B[eg]BL[30]OB[3]
;W[ed]WL[30]OW[5]C[I chose this connection to reduce Black's liberties]
;B[ig]BL[30]OB[3]
;W[gi]WL[30]OW[5]C[I chose the hanging connection because Black's peep didn't look beneficial for him]
;B[di]BL[30]OB[3]
;W[kh]WL[30]OW[5]C[This looked like a natural splitting attack. ]
;B[ii]BL[30]OB[3]
;W[gk]WL[30]OW[5]
;B[oj]BL[30]OB[3]C[Perhaps I shouldn't have answered here. I considered the variation]
(;W[pk]WL[30]OW[5]
;B[jj]BL[30]OB[3]
;W[lj]WL[30]OW[5]
;B[kg]BL[30]OB[3]C[I didn't expect this cut. I thought about a few moves]
(;W[jg]WL[30]OW[5]C[So I played here but immediately regretted it]
;B[jh]BL[30]OB[3]
;W[ie]WL[30]OW[5]C[However, I found this move and was pleased with it ...]
;B[hg]BL[30]OB[3]
;W[gh]WL[30]OW[5]
;B[lg]BL[30]OB[3]
(;W[ke]WL[30]OW[5]
(;B[ki]BL[30]OB[3]C[... until I realised the impact of Black's choice]
;W[ge]WL[30]OW[5]C[Black sacrificed 10 stones and it looked like a brave but wise decision.
Moreover, Black still has a ko in store. See var
]
(;B[dl]BL[30]OB[3]C[Black's diamond dominating the board and the ko still in store, I was behind now]
;W[gm]WL[30]OW[5]
;B[go]BL[30]OB[3]
;W[dj]WL[30]OW[5]
;B[cj]BL[30]OB[3]
;W[dh]WL[30]OW[5]
;B[ch]BL[30]OB[3]
;W[ei]WL[30]OW[5]
;B[ci]BL[30]OB[3]
;W[el]WL[30]OW[5]C[I was merely trying to make sabaki and accepted a big Black territory.]
;B[dk]BL[30]OB[3]C[This was a big mistake by Black]
;W[em]WL[30]OW[5]
;B[ej]BL[30]OB[3]
;W[dn]WL[30]OW[5]C[By now I was more than ready to sacrifice my own tail and separate the bottom]
;B[fk]BL[30]OB[3]
;W[ep]WL[30]OW[5]
;B[eq]BL[30]OB[3]
;W[fp]WL[30]OW[5]
;B[do]BL[30]OB[3]
(;W[gp]WL[30]OW[5]C[I chose this move above the variation but it was too timid]
;B[dq]BL[30]OB[3]
;W[ho]WL[30]OW[5]
;B[fl]BL[30]OB[3]
;W[cn]WL[30]OW[5]
;B[eo]BL[30]OB[3]
;W[fm]WL[30]OW[5]
;B[en]BL[30]OB[3]
;W[dm]WL[30]OW[5]
;B[gn]BL[30]OB[3]
;W[hn]WL[30]OW[5]
;B[hm]BL[30]OB[3]
;W[im]WL[30]OW[5]
;B[hl]BL[30]OB[3]
;W[gl]WL[30]OW[5]
;B[hk]BL[30]OB[3]
;W[fj]WL[30]OW[5]C[This was all calculated so I didn't consider any alternative]
;B[ek]BL[30]OB[3]
;W[cl]WL[30]OW[5]C[I was very happy to live and weaken Black here. I would treat my other stones lightly]
;B[bo]BL[30]OB[3]
;W[ck]WL[30]OW[5]
;B[dj]BL[30]OB[3]
;W[eh]WL[30]OW[5]C[I calculated the variation next, so I knew this was good]
(;B[hj]BL[30]OB[3]
;W[gj]WL[30]OW[5]
;B[dg]BL[30]OB[3]
;W[bn]WL[30]OW[5]
;B[hp]BL[30]OB[3]
;W[ip]WL[30]OW[5]
;B[hq]BL[30]OB[3]
;W[iq]WL[30]OW[5]
;B[gr]BL[30]OB[3]
;W[hr]WL[30]OW[5]
;B[gq]BL[30]OB[3]
;W[lq]WL[30]OW[5]C[I still had all my overtime periods but I felt this was natural]
;B[io]BL[30]OB[3]
;W[jo]WL[30]OW[5]
;B[in]BL[30]OB[3]
;W[lo]WL[30]OW[5]C[Even though the corner is big, I thought I was ahead.]
;B[ir]BL[30]OB[2]C[This was very small]
;W[jr]WL[30]OW[5]
;B[hs]BL[30]OB[2]
;W[np]WL[30]OW[4]C[I spent an overtime period to decide whether connecting was enough
Obviously, Black should have ignited the ko]
;B[op]BL[30]OB[2]
;W[no]WL[30]OW[4]
;B[oo]BL[30]OB[2]
;W[on]WL[30]OW[4]
;B[mq]BL[30]OB[2]
;W[lm]WL[30]OW[4]C[I was quite happy with myself here]
;B[se]BL[30]OB[2]C[I don't know what Black is thinking here]
;W[rf]WL[30]OW[4]
;B[qg]BL[30]OB[1]
;W[rg]WL[30]OW[4]
;B[li]BL[30]OB[1]
;W[be]WL[30]OW[4]
;B[bf]BL[30]OB[1]
;W[bj]WL[30]OW[4]
;B[bi]BL[30]OB[1]
;W[bk]WL[30]OW[4]
;B[ce]BL[30]OB[1]
;W[bd]WL[30]OW[4]
;B[de]BL[30]OB[1]C[I made many points in sente here]
;W[he]WL[30]OW[3]LB[ng:D][co:C][ro:B][lr:A]C[I spent another overtime period calculating whether preventing the ko was enough. I thought I was ahead by 10 points
Also, I counted the big endgame and would remind myself to get at least 2 of A, B, C, D]
;B[kn]BL[30]OB[1]
;W[ko]WL[30]OW[3]
;B[km]BL[30]OB[1]
;W[ln]WL[30]OW[3]
;B[ll]BL[30]OB[1]
;W[ml]WL[30]OW[3]
;B[kk]BL[30]OB[1]C[This was timid. Now I have sente to play endgame]
;W[lr]WL[30]OW[3]C[1-0]
;B[rn]BL[30]OB[1]
;W[rm]WL[30]OW[3]
;B[so]BL[30]OB[1]C[1-1]
;W[lk]WL[30]OW[3]C[This was big now]
;B[kl]BL[30]OB[1]
;W[nk]WL[30]OW[3]
;B[ap]BL[30]OB[1]C[1-2]
;W[or]WL[30]OW[3]
;B[oq]BL[30]OB[1]
;W[ms]WL[30]OW[3]
;B[ns]BL[30]OB[1]
;W[nr]WL[30]OW[3]
;B[mr]BL[30]OB[1]
;W[ls]WL[30]OW[3]
;B[pr]BL[30]OB[1]C[Now I could count this as 6 points]
;W[ng]WL[30]OW[3]C[... and thought this was bigger. 2-2. I knew my lead secured]
;B[nf]BL[30]OB[1]
;W[mf]WL[30]OW[3]
;B[og]BL[30]OB[1]
;W[mg]WL[30]OW[3]
;B[mh]BL[30]OB[1]
;W[nh]WL[30]OW[3]
;B[pf]BL[30]OB[1]
;W[oh]WL[30]OW[3]
;B[oi]BL[30]OB[1]
;W[mj]WL[30]OW[3]
;B[mi]BL[30]OB[1]
;W[la]WL[30]OW[2]C[This resolved some more aji and threatens seki in the corner, according to my calculations. I spent another overtime on it]
;B[ra]BL[30]OB[1]
;W[jn]WL[30]OW[2]
;B[jm]BL[30]OB[1]
;W[os]WL[30]OW[2]LB[sm:A]C[I thought I had more than 10 points now
Also this was bigger than]
;B[ps]BL[30]OB[1]
;W[ns]WL[30]OW[2]
;B[js]BL[30]OB[1]
;W[jq]WL[30]OW[2]
;B[mp]BL[30]OB[1]
;W[mo]WL[30]OW[2]
;B[lp]BL[30]OB[1]
;W[kp]WL[30]OW[2]
;B[ok]BL[30]OB[1]
;W[ol]WL[30]OW[2]
;B[sm]BL[30]OB[1]
;W[rl]WL[30]OW[2]
;B[sl]BL[30]OB[1]
;W[sk]WL[30]OW[2]
;B[sn]BL[30]OB[1]
;W[rk]WL[30]OW[2]C[I wasn't sure this is needed but wanted to avoid losing the game due to an oversight]
;B[rp]BL[30]OB[1]
;W[co]WL[30]OW[2]
;B[cp]BL[30]OB[1]
;W[oa]WL[30]OW[2]
;B[pa]BL[30]OB[1]
;W[na]WL[30]OW[2]
;B[pb]BL[30]OB[1]
;W[fn]WL[30]OW[1]C[I don't know why I spent an overtime period here.]
;B[fo]BL[30]OB[1]
;W[ae]WL[30]OW[1]
;B[af]BL[30]OB[1]
;W[ja]WL[30]OW[1]C[This is obviously not needed but I was sure of victory and again wanted to avoid a loss by oversight. This is exaggerated though.]
;B[ee]BL[30]OB[1]
;W[fd]WL[30]OW[1]
;B[sf]BL[30]OB[1]
;W[sg]WL[30]OW[1]
;B[sd]BL[30]OB[1]
;W[an]WL[30]OW[1]
;B[aj]BL[30]OB[1]
;W[ak]WL[30]OW[1]
;B[ai]BL[30]OB[1]
;W[ao]WL[30]OW[1]
;B[bp]BL[30]OB[1]
;W[nj]WL[30]OW[1]
;B[ks]BL[30]OB[1]
;W[kr]WL[30]OW[1]
;B[is]BL[30]OB[1]
;W[if]WL[30]OW[1]
;B[pp]BL[30]OB[1]
;W[pn]WL[30]OW[1]
;B[pg]BL[30]OB[1]
;W[hi]WL[30]OW[1]
;B[ih]BL[30]OB[1]
;W[kf]WL[30]OW[1]
;B[lh]BL[30]OB[1]
;W[]WL[30]OW[1]
;B[]BL[30]OB[1]TW[aa][ba][ca][da][ga][ia][ka][bb][cb][db][fb][ac][ec][fc][gc][hc][ic][jc][kc][ad][gd][hd][id][jd][kd][ld][je][rh][sh][fi][ri][si][qj][rj][sj][mk][qk][al][bl][nl][pl][ql][am][bm][cm][mm][nm][om][qm][mn][nn][jp][kq]TB[qa][sa][qb][rb][sb][sc][df][ag][bg][cg][ah][bh][kh][ji][ij][ik][jk][il][jl][im][hn][ho][ro][ep][fp][gp][sp][aq][bq][cq][fq][qq][rq][sq][ar][br][cr][dr][er][fr][hr][qr][rr][sr][as][bs][cs][ds][es][fs][gs][qs][rs][ss]C[The margin is 5,5 due to my consecutive soft protections])
(;B[ss]
;W[dg]
;B[df]
;W[cg]
;B[bg]
;W[bf]
;B[be]
;W[bh]
;B[af]
;W[bj]))
(;W[eo]C[I thought of this move and some variations]
(;B[cn]
;W[dq])
(;B[dq]
;W[fq]
;B[cn]
;W[iq]C[I don't know why I dismissed it])))
(;B[he]
;W[hd]
;B[id]
;W[gd]
;B[je]))
(;B[ge]
;W[lh]
;B[mh]
;W[kj]
;B[jk]
;W[ll]C[I read this instead]))
(;W[lh]
;B[mg]
;W[ke]))
(;W[jh]
;B[jg]
;W[ih]
;B[hh]
;W[hi]
;B[hg]
;W[gh]
;B[lh]
;W[ki]C[I didn't read further but resented the shape])
(;W[lg]
;B[kf]C[I dind't like this broken shape but didn't think about the next move]
;W[mh]LB[ke:B][jh:A]C[Black has lots of weaknesses now]))
(;W[kj]
;B[pk]
;W[qj]
;B[ik]C[I thought this would have been a bad exchange]))
(;W[fe]
;B[ee]
;W[ed]
;B[fd]
;W[ge]
;B[da]
;W[ga]
;B[ab]
;W[ba]
;B[ac]
;W[bd]C[I cannot read this in a real game.]))
(;W[cf]C[This would have been better perhaps])
(;W[fe]
;B[ee]
;W[ed]
;B[fd]
;W[ge]
;B[da]
;W[ga]
;B[ab]
;W[ba]
;B[ie]C[I calculated until here and didn't like it]))
(;B[ec]
;W[fc]
;B[fd]
;W[fb]
;B[ed]))
(;W[kd]
;B[le]
;W[lf]
;B[ke]
;W[jd]))
(;W[kd]
;B[le]
;W[kb]LB[lf:A]C[I'm not sure ...]
;B[jc]
;W[lf]
;B[ke]
;W[jd]
;B[kf]
;W[ic]
;B[mf]
;W[nf]
;B[lg]
;W[ng]C[This is just one variation I did not see]))