My impression of this game: you were both tactically, strategically and mentally stronger than the opponent. Black never really made a real effort to win this game. Although the middle game was confusing with those floating groups in the centre, you took a few big points and were not punished for it. The cut at 90 put you ahead. The cut at 152 and sealing off at 154 next was the decisive blow.
(;GM[1]FF[4]CA[UTF-8]AP[CGoban:3]ST[2]
RU[Japanese]SZ[19]KM[6.50]TM[1800]OT[5x30 byo-yomi]
PW[iseijin]PB[posecayou]WR[4k]BR[4k]DT[2015-12-18]PC[The KGS Go Server at
http://www.gokgs.com/]RE[W+17.50]
;B[jj]BL[1797.419]C[iseijin [4k\]: hello
iseijin [4k\]: have a nice game
posecayou [4k?\]: hi
posecayou [4k?\]: have fun
]
;W[cp]WL[1787.104]
;B[qq]BL[1794.162]
;W[dc]WL[1769.166]
;B[pd]BL[1784.638]
;W[pp]WL[1760.736]
;B[pq]BL[1780.459]
;W[op]WL[1757.561]
;B[ro]BL[1776.683]
;W[oq]WL[1751.858]
;B[eq]BL[1765.614]
;W[do]WL[1735.971]
;B[hq]BL[1762.309]
;W[kq]WL[1733.73]
;B[mp]BL[1756.719]C[KW: this is not the invasion point]
;W[mq]WL[1730.842]C[White is very happy to connect here]
;B[kp]BL[1754.659]
(;W[jp]WL[1721.666]C[see var]
;B[jq]BL[1751.661]
;W[lq]WL[1702.645]
;B[lp]BL[1718.267]
;W[jo]WL[1693.834]C[very good]
;B[jr]BL[1706.399]
(;W[nn]WL[1686.302]C[I would prefer striking at White's weak spot]
;B[ln]BL[1702.984]C[Now Black takes the shape point and his centre stone is cooperating well]
;W[jm]WL[1683.639]
;B[ll]BL[1700.323]
;W[dr]WL[1667.494]
;B[hn]BL[1694.561]
;W[il]WL[1655.375]TR[jj][hn]C[good move, avoiding to be shut in; the relationship of this diagonal move with the two marked stones is good for White]
;B[ql]BL[1682.331]
;W[pn]WL[1616.508]
;B[qn]BL[1666.398]
;W[np]WL[1603.989]
;B[in]BL[1643.551]
;W[jn]WL[1597.519]
;B[hl]BL[1639.86]
;W[ik]WL[1594.071]C[nice and easy; the centre stone is hurt]
;B[dl]BL[1629.798]
;W[nc]WL[1489.044]C[it feels a bit premature to leave the front]
;B[nd]BL[1624.09]
;W[pc]WL[1483.217]C[this is not such a good shape; Black can now strengthen his stones and weaken yours]
;B[oc]BL[1619.032]
;W[ob]WL[1481.821]
;B[od]BL[1617.806]
;W[qb]WL[1479.371]
(;B[qc]BL[1615.086]
;W[pb]WL[1478.255]
;B[rc]BL[1613.94]
;W[mc]WL[1476.052]C[good]
;B[md]BL[1611.905]
;W[ok]WL[1461.557]LB[lc:A]C[this is indeed a good cutting move but the problem is now that black has a good move at A]
;B[pj]BL[1609.073]
;W[oi]WL[1456.14]C[this is not a good shape: it can be cut easily]
(;B[pi]BL[1606.914]C[but Black is focussing on his 4th line territory]
;W[pk]WL[1449.515]
;B[qk]BL[1604.227]
;W[oj]WL[1447.982]C[good: you fix the shape]
;B[pg]BL[1588.299]
(;W[ce]WL[1443.049]LB[oj:A][kk:B]C[This is a big point but I would use the strength you built at A to cut Black at B. See var]
;B[lc]BL[1582.81]C[good move by Black, building influence towards your biggest area of development]
;W[lb]WL[1440.571]
;B[kb]BL[1575.437]
;W[mb]WL[1431.991]
;B[kd]BL[1571.041]
(;W[rb]WL[1429.783]C[this is a very big move in terms of endgame, but it is not really necessary for life]
;B[qe]BL[1547.688]C[this is very docile by Black]
;W[mm]WL[1419.304]
;B[lm]BL[1532.419]
;W[ci]WL[1406.051]C[this is another big point but White is still keeping the game complicated by not taking the initiative in the central struggle]
;B[gj]BL[1506.631]
;W[ij]WL[1391.823]
;B[ji]BL[1500.458]
;W[hi]WL[1389.154]
;B[kk]BL[1486.26]
;W[hc]WL[1358.052]C[Yet another big point - you seem to get away with it]
;B[fh]BL[1471.081]
;W[hg]WL[1349.779]
;B[db]BL[1466.027]
;W[ec]WL[1331.625]C[not a bad choice, sacrificing territory for better overall strength]
;B[cc]BL[1448.652]
;W[cd]WL[1312.13]
;B[bc]BL[1442.624]
;W[gg]WL[1308.313]
;B[eb]BL[1437.985]
;W[fc]WL[1304.134]
;B[ca]BL[1406.722]C[a completely unnecessary move by Black - he is alive already]
;W[ej]WL[1298.654]C[a great attack on Black's shape]
;B[eo]BL[1394.765]
;W[fi]WL[1281.141]C[a big cut and one in good shape too]
;B[fj]BL[1387.851]
;W[ei]WL[1279.258]
;B[ek]BL[1382.325]
;W[er]WL[1236.803]C[a very good move, strengthening your weakest group, weakening his, and making points]
;B[fq]BL[1376.333]
;W[bd]WL[1223.353]
;B[dj]BL[1366.571]
;W[di]WL[1215.831]
;B[cj]BL[1362.095]
;W[qo]WL[1202.083]
;B[qp]BL[1358.124]
;W[po]WL[1200.644]
;B[rn]BL[1344.224]
;W[cm]WL[1185.802]
;B[cl]BL[1327.319]
;W[bm]WL[1182.537]
;B[dn]BL[1318.697]
;W[cn]WL[1174.674]
;B[dp]BL[1316.651]
;W[co]WL[1173.503]
;B[dm]BL[1307.484]
;W[kg]WL[1154.678]C[a very good choice, reducing Black's potential here while attacking his weakest group]
;B[jg]BL[1303.53]
(;W[oh]WL[1146.638]C[it would have been logical to hane like in the variation first]
;B[kh]BL[1285.414]
;W[og]WL[1137.665]
;B[pf]BL[1281.088]
;W[gr]WL[1122.906]
;B[fr]BL[1275.19]
;W[fs]WL[1120.698]
;B[dq]BL[1263.298]
;W[cq]WL[1119.027]
;B[bi]BL[1242.51]
;W[bh]WL[1115.827]
;B[bj]BL[1241.759]
;W[ch]WL[1070.746]
;B[hd]BL[1212.794]
;W[id]WL[1060.012]
;B[he]BL[1190.63]C[This is greedy or desperate ... If Black doesn't know what he's doing, he will lose a lot of points]
;W[ie]WL[1054.893]
;B[if]BL[1181.923]
;W[hf]WL[1043.806]
;B[fe]BL[1121.884]
;W[gd]WL[1023.52]
;B[ge]BL[1117.084]
;W[jc]WL[1020.693]C[good move]
;B[gh]BL[1088.013]
;W[gi]WL[993.22]
;B[hh]BL[1085.584]
(;W[fg]WL[986.368]C[interesting, see var]
;B[ih]BL[1059.271]
;W[eg]WL[974.605]
;B[eh]BL[1025.115]
;W[dh]WL[962.584]
;B[ah]BL[1021.083]
;W[ag]WL[958.737]
;B[ai]BL[988.608]
;W[ac]WL[952.136]LB[bg:A]C[very strong endgame move: you seem to realize A is not a real threat]
;B[ab]BL[979.414]
;W[ad]WL[949.325]
;B[bb]BL[975.076]
;W[kc]WL[944.12]
;B[ld]BL[969.322]
;W[fb]WL[941.593]LB[kc:A]C[with this move, victory is sealed
Black failed to connect at A and suddenly the top becomes a major white territory
Black is about 20 points behind and I don't see a way to catch up except if he can reduce the big group on the right to 1 eye
and that will be very hard]
(;B[df]BL[935.422]
;W[dg]WL[935.869]
;B[bg]BL[900.702]
;W[af]WL[924.887]
;B[bf]BL[896.825]
;W[ae]WL[922.508]
;B[cf]BL[877.779]
;W[ee]WL[919.683]
;B[je]BL[834.388]
;W[hp]WL[908.515]
;B[gp]BL[825.275]
;W[ho]WL[906.783]
;B[go]BL[823.195]
;W[hr]WL[892.517]
;B[iq]BL[812.777]
;W[sc]WL[874.179]C[very good endgame move]
;B[sd]BL[809.075]
;W[sb]WL[872.866]
;B[rd]BL[808.132]
;W[hk]WL[861.995]
;B[gl]BL[793.373]
;W[kr]WL[845.102]C[very good]
;B[js]BL[774.718]
;W[pr]WL[837.712]
;B[qr]BL[771.392]
;W[or]WL[836.178]
;B[mg]BL[752.963]C[this is almost a surrendering move; Black is way behind so he must not be counting]
;W[qs]WL[831.296]
;B[rs]BL[747.074]
;W[ps]WL[830.439]
;B[rr]BL[745.168]
;W[nf]WL[821.776]
;B[mf]BL[741.947]
;W[ig]WL[818.747]
;B[jf]BL[738.858]
;W[ii]WL[817.852]
;B[jh]BL[736.525]
;W[gk]WL[817.177]
;B[fk]BL[734.143]
;W[bl]WL[815.486]
;B[bk]BL[731.317]
;W[ph]WL[801.969]
;B[qh]BL[728.132]
;W[ml]WL[801.046]
;B[mk]BL[722.078]
;W[mi]WL[796.612]
;B[nk]BL[718.318]
;W[nl]WL[791.483]
;B[pm]BL[715.157]
;W[om]WL[789.671]
;B[ng]BL[698.534]
;W[of]WL[782.595]
;B[li]BL[694.65]
;W[mh]WL[780.59]
;B[lh]BL[692.008]
;W[pl]WL[779.504]
;B[qm]BL[688.845]
;W[gs]WL[777.379]
;B[gq]BL[662.283]
;W[mj]WL[773.173]
;B[lj]BL[658.115]
;W[ea]WL[768.026]
;B[da]BL[653.426]
;W[fa]WL[766.154]
;B[jd]BL[642.726]
;W[ic]WL[764.548]
;B[ks]BL[627.248]
;W[ls]WL[762.245]
;B[mo]BL[611.147]
;W[no]WL[753.555]
;B[nh]BL[605.43]
;W[im]WL[745.598]
;B[hm]BL[603.539]
;W[nj]WL[735.948]
;B[lk]BL[600.104]
;W[ko]WL[726.855]
;B[oe]BL[549.764]
;W[ef]WL[723.487]C[good: secure move removing all endgame aji]
;B[ne]BL[528.457]
;W[ak]WL[718.822]
;B[aj]BL[521.202]
;W[al]WL[717.804]
;B[is]BL[518.01]
;W[cr]WL[715.879]
;B[jl]BL[497.8]
;W[km]WL[709.367]
;B[jk]BL[493.629]
;W[ol]WL[706.914]
;B[kn]BL[487.035]
;W[]WL[706.913]
;B[fd]BL[438.843]
;W[gc]WL[652.501]
;B[ip]BL[435.199]
;W[io]WL[649.432]
;B[hj]BL[430.26]
;W[ed]WL[636.502]
;B[]BL[430.26]
;W[]WL[636.501]TW[ga][ha][ia][ja][ka][la][ma][na][oa][pa][qa][ra][sa][gb][hb][ib][jb][kb][nb][dd][fd][hd][be][de][fe][ge][he][bf][cf][df][ff][gf][bg][cg][am][nm][an][bn][on][ao][bo][oo][ap][bp][aq][bq][nq][ar][br][lr][mr][nr][as][bs][cs][ds][ms][ns][os]TB[aa][ba][cb][qd][ke][le][me][pe][re][se][kf][lf][qf][rf][sf][kg][lg][qg][rg][sg][rh][sh][ki][qi][ri][si][kj][qj][rj][sj][ck][dk][rk][sk][el][fl][rl][sl][em][fm][gm][rm][sm][en][fn][gn][sn][fo][so][ep][fp][rp][sp][rq][sq][sr][ss]C[posecayou [5k?\]: thx
])
(;B[nr]
;W[or]
;B[kr]
;W[ns]))
(;W[ih]C[I thought White could play here]
;B[ii]C[but Black can play here]
(;W[hj]
;B[fg])
(;W[fg]
;B[hj])))
(;W[jf]
;B[kh]
;W[kf]
;B[lh]
;W[oh]))
(;W[jc]
;B[kc]
;W[kk]C[I would still cut here]))
(;W[kk]
;B[lk]
;W[lj]
;B[mj]
;W[mi]C[this looks dangerous but it is possible thanks to your strong stones]
;B[li]
;W[kj]
;B[ni]
;W[mh]
;B[nh]
;W[mk]
;B[nj]
;W[nk]))
(;B[oj]
;W[nj]
;B[ni]))
(;B[mc]
;W[nb]
;B[qc]
;W[pb]
;B[rc]C[White is crawling for life]))
(;W[ln]C[this is "the centre of three stones"; Black's stones will soon be in bad shape]))
(;W[lp]
;B[lo]
;W[lq]
;B[jp]C[Black's influence is not very strong with those two cutting points]
;W[ce]C[and White seems to have an easy game]))