Some comments : )
In general Black helped you a lot with your weak groups. Stronger players are not that forgiving, so I would always think about the status of your groups and play moves which ensure safety.
(;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[mekdd]PB[carbondx]DT[2013-08-31]PC[The KGS Go Server at http://www.gokgs.com/]RE[B+Resign]
;B[pd]BL[1786.716]
;W[dp]WL[1794.457]
;B[pp]BL[1784.19]
;W[dc]WL[1792.175]
;B[fq]BL[1776.039]LB[ce:B][de:A]C[SoDesuNe:
An approach at A or B is seen more often. It prevents White from making a solid shape (with the same moves, A or B).
An approach against a 4*4-stone is not as urgent because it is much more flexible. Here White can play at either the bottom side or the left side to develop it.]
;W[cn]WL[1787.509]
;B[dr]BL[1768.376]
;W[cq]WL[1774.84]LB[nc:B][nq:A]C[SoDesuNe:
This move is often not played directly because White has a lot of possibilities in this position. You can think about approaching at A or B to speed up your development over the board.]
;B[iq]BL[1759.688]
;W[qn]WL[1772.767]
;B[np]BL[1742.539]
;W[rp]WL[1759.991]
;B[qq]BL[1737.977]
;W[qk]WL[1757.821]
;B[jd]BL[1733.01]
;W[nc]WL[1710.429]LB[ce:B][qf:A]TR[jd][pd]C[SoDesuNe:
Here White immediately jumps into a pincered position which should be avoided when possible.
A would be just fine, so would be B.]
;B[qf]BL[1710.977]
;W[pb]WL[1702.284]
;B[qc]BL[1707.617]
;W[ld]WL[1699.397]LB[jb:B][lc:A]C[SoDesuNe:
This shape is a little bit funny. Locally correct would be to play at A then you can slide to B later to make solid base.]
;B[gd]BL[1704.439]
;W[de]WL[1658.105]
;B[kc]BL[1689.237]C[SoDesuNe:
Kind of a vital point for both groups.]
;W[od]WL[1633.641]
;B[qi]BL[1668.752]C[SoDesuNe:
Big!]
;W[rq]WL[1604.421]
;B[cg]BL[1650.77]
;W[be]WL[1523.59]
;B[cj]BL[1639.928]
;W[cl]WL[1515.916]
;B[eg]BL[1635.242]LB[ej:A]C[SoDesuNe:
I'd play this at A, just a hunch.]
;W[dh]WL[1511.008]
;B[dg]BL[1610.829]
;W[lq]WL[1332.014]
;B[pn]BL[1569.205]LB[mn:C][lp:B][mq:A]C[SoDesuNe:
I'd play A to C here. You don't need this move because you are safe with your corner group for the moment. Do not play forcing moves, which do not gain anything.]
;W[qm]WL[1314.212]
;B[mr]BL[1565.854]LB[mn:C][lp:B][mq:A]C[SoDesuNe:
I would still play A to C.]
;W[mq]WL[1289.12]
;B[nq]BL[1562.418]
;W[lr]WL[1287.134]
;B[nr]BL[1559.554]
;W[lo]WL[1270.998]C[SoDesuNe:
This went splendid for White.]
;B[cr]BL[1554.025]LB[qb:B][ej:A]C[SoDesuNe:
I think, this is not urgent. I would play something like A to secure this group or B to attack White.]
;W[bi]WL[1143.915]
;B[ch]BL[1545.171]
;W[ci]WL[1116.797]
;B[di]BL[1541.953]
;W[dj]WL[1114.946]
;B[ei]BL[1529.298]
;W[bj]WL[1090.15]
;B[ej]BL[1523.102]
;W[dk]WL[1087.596]
;B[lm]BL[1509.015]LB[qb:A][qm:2][pn:1]C[SoDesuNe:
How do you plan to profit from this attack? Since the 1-2-exchange strengthened White, you have no play on the right side. And on the left White is equally solid. I would still try A and maybe you can manufacture a splitting attack in the center?]
;W[jp]WL[1076.258]
;B[ho]BL[1503.817]
;W[in]WL[1065.815]
;B[hn]BL[1496.973]
;W[jm]WL[1029.944]
;B[ol]BL[1469.483]LB[hm:A]C[SoDesuNe:
This move feels off. When White plays A there is no attack anymore.]
;W[hm]WL[1011.346]
;B[en]BL[1461.56]
;W[il]WL[945.079]LB[gm:B][jq:A]C[SoDesuNe:
Maybe a bit slow.
A threatens to make life locally, B threatens to connect. Both seem more active.]
;B[qb]BL[1455.947]
;W[pe]WL[941.257]
;B[qe]BL[1450.2]
;W[pc]WL[939.391]
;B[qd]BL[1446.708]
;W[qa]WL[823.531]LB[lc:A]C[SoDesuNe:
So slow! White should just play A to make life.]
;B[fb]BL[1419.907]LB[mb:A]C[SoDesuNe:
Attack!]
;W[eb]WL[809.573]
;B[lb]BL[1415.976]LB[mb:A]C[SoDesuNe:
A would have been correct. This way White can live locally.]
;W[fc]WL[803.086]C[SoDesuNe:
Oh my.]
;B[gc]BL[1413.085]LB[nb:A]C[SoDesuNe:
Good Sir! Attack! When you play A then White does not have a single eye, yet.]
;W[rb]WL[789.738]
;B[rc]BL[1407.007]
;W[mb]WL[747.864]C[SoDesuNe:
White seems solid enough now to win with points.
END OF COMMENTS.]
;B[fd]BL[1402.943]
;W[ec]WL[743.111]
;B[bq]BL[1394.295]
;W[bp]WL[739.358]
;B[dq]BL[1390.752]
;W[cp]WL[735.76]
;B[ij]BL[1383.596]
;W[hk]WL[621.876]
;B[hj]BL[1378.734]
;W[gl]WL[609.929]
;B[pf]BL[1372.958]
;W[lf]WL[590.668]
;B[oe]BL[1369.701]
;W[ne]WL[587.902]
;B[jg]BL[1364.875]
;W[je]WL[563.607]
;B[ie]BL[1361.583]
;W[jf]WL[561.292]
;B[if]BL[1359.068]
;W[kg]WL[559.368]
;B[br]BL[1346.606]
;W[ip]WL[527.257]
;B[hp]BL[1343.403]
;W[jq]WL[516.267]
;B[ir]BL[1340.743]
;W[gj]WL[495.242]
;B[gi]BL[1337.424]
;W[gn]WL[469.866]
;B[fo]BL[1332.887]
;W[rj]WL[436.029]
;B[ri]BL[1329.346]
;W[og]WL[425.977]
;B[oi]BL[1312.084]
;W[si]WL[415.598]
;B[sh]BL[1308.653]
;W[sj]WL[414.137]
;B[qj]BL[1295.528]
;W[rl]WL[409.832]
;B[rr]BL[1288.863]
;W[sr]WL[405.943]
;B[qr]BL[1285.368]
;W[rh]WL[403.385]
;B[sg]BL[1267.298]
;W[ph]WL[373.141]
;B[qh]BL[1263.975]
;W[jh]WL[345.383]
;B[ig]BL[1260.507]
;W[lh]WL[333.472]
;B[gb]BL[1229.6]
;W[kd]WL[328.476]
;B[jc]BL[1216.082]
;W[lc]WL[324.904]
;B[ea]BL[1209.398]
;W[da]WL[320.799]
;B[fa]BL[1208.077]
;W[cb]WL[313.515]
;B[ap]BL[1203.649]
;W[ao]WL[310.273]
;B[aq]BL[1200.5]
;W[bn]WL[307.301]
;B[jr]BL[1177.176]
;W[mn]WL[192.637]
;B[ka]BL[1167.814]
;W[lk]WL[175.006]
;B[ml]BL[1159.052]
;W[nm]WL[167.782]
;B[pk]BL[1153.86]
;W[nl]WL[158.331]
;B[mk]BL[1150.814]
;W[nk]WL[143.39]
;B[mj]BL[1142.976]
;W[nj]WL[129.603]
;B[lj]BL[1140.201]
;W[kk]WL[110.27]
;B[kj]BL[1136.773]
;W[jk]WL[105.143]
;B[jj]BL[1128.77]
;W[ep]WL[84.647]
;B[fp]BL[1125.041]
;W[eq]WL[81.823]
;B[er]BL[1122.502]
;W[ni]WL[54.254]
;B[of]BL[1093.504]
;W[nf]WL[49.631]
;B[pg]BL[1082.796]
;W[oh]WL[43.472]
;B[kr]BL[1067.109]
;W[ks]WL[29.795]
;B[kn]BL[1055.306]
;W[jn]WL[21.578]
;B[fj]BL[1045]
;W[gk]WL[2.344]
;B[qo]BL[1042.028]
;W[ro]WL[0.845]
;B[bf]BL[1034.734]
;W[cf]WL[30]OW[5]
;B[bg]BL[1023.913]
;W[af]WL[30]OW[5]
;B[ag]BL[1019.792]
;W[ae]WL[30]OW[5]
;B[ee]BL[1017.368]
;W[ih]WL[30]OW[5]
;B[hh]BL[1013.741]
;W[ii]WL[30]OW[5]
;B[hi]BL[1009.339]
;W[pm]WL[30]OW[5]
;B[on]BL[1000.118]
;W[pi]WL[30]OW[5]
;B[om]BL[993.834]
;W[pj]WL[30]OW[5]
;B[rg]BL[990.185]
;W[qp]WL[30]OW[5]
;B[po]BL[986.633]
;W[ko]WL[30]OW[5]
;B[mp]BL[977.709]
;W[dm]WL[30]OW[5]
;B[pl]BL[974.037]
;W[ql]WL[30]OW[5]
;B[sq]BL[970.54]
;W[sp]WL[30]OW[5]
;B[mi]BL[932.034]
;W[mh]WL[30]OW[5]
;B[ok]BL[914.166]
;W[oj]WL[30]OW[4]
;B[cd]BL[910.111]
;W[ce]WL[30]OW[3]
;B[dd]BL[907.128]
;W[ed]WL[30]OW[3]
;B[cc]BL[904.749]C[carbondx: thx
mekdd [?]: thank you
])