S2W wrote:
(;GM[1]FF[4]SZ[19]AP[SmartGo Kifu:3.4]
GN[2014-08-30a]
PW[Saint Ravitt]WR[21k]
PB[SgtSunshine]BR[23k]
DT[2014-08-30]
PC[OGS: http://online-go.com/game/842943]
KM[6.5]
RE[W+68.5]
CP[online-go.com]
RU[japanese]
C[SgtSunshine: Hi
]CH[1];B[dc];W[pd];B[pq];W[dp]
(;B[cj]
C[This seems odd/greedy]
(;W[jc];B[pj];W[jq];B[ce]
(;W[gc]
C[Seems a little flat - not very forceful];B[ge]
(;W[gq]
(;B[qh]
C[Slow]
(;W[mc]
C[All on the 3rd line - very flat];B[qo];W[qf]
(;B[rl]
C[Don't play on the second line in the opening unless you have to];W[mq]
;B[mo];W[cm]
C[
];B[eh];W[jm]
C[I like that it's off the third line but maybe too far]
(;B[jk];W[gl];B[fj]
C[Black is very polite ];W[jg];B[jh]
C[Very very polite!];W[kh];B[ih];W[ho];B[og];W[of];B[pg];W[pf];B[ll];W[pc]
(;B[if];W[jf];B[ig];W[ki];B[jj];W[ji];B[ij]
(;W[il]
C[Slow move]
(;B[hi];W[mi];B[nk];W[ng];B[ni];W[nh];B[oi];W[li];B[oh];W[lg];B[mj];W[lo]
;B[mn];W[ln];B[lm]
(;W[km];B[kl];W[mp];B[np];W[oq];B[pp];W[op];B[oo];W[nq];B[hk];W[el];B[kj]
;W[ie];B[he];W[hd];B[fd]
(;W[jd];B[ej];W[qg];B[rg];W[rf];B[sg];W[sf];B[rh];W[lj];B[lk];W[pr];B[qq]
;W[qr];B[rr];W[rs];B[sr];W[or];B[rq];W[ec];B[fc];W[fb];B[eb];W[ed];B[ee]
;W[ea];B[db];W[da]
(;B[dd];W[cb]
(;B[gd];W[hb];B[bc];W[bb];B[ac];W[ab];B[cc]
(;W[ca]
C[No need];B[aj];W[ii];B[hh];W[bl];B[bk];W[al];B[ak];W[dl];B[dk];W[fl];B[gk]
;W[hl];B[jl];W[ik];B[gj];W[cl];B[ck];W[ek]
C[?];B[dj]
C[????]
(;W[kn]
(;B[gi]
C[??????!!]
(;W[qs]
C[Don't play until you have to]
(;B[ss]
C[Pointless ];W[no];B[nn];W[np]
(;B[on]
C[Pass]
(;W[nf]
C[Pass];B[ml]
C[Pass];W[fk]
C[Pass- unless in a tournament (dame)]
(;B[ph]
C[Pass];W[];B[])
(;B[cq]
C[Or yolo invade - should die but at this level...]))
(;W[sa];B[nf];W[mg]
C[....?]))
(;B[sb];W[on];B[po];W[nm];B[mm]))
(;B[no]))
(;W[no]))
(;B[no]))
(;W[as];B[kn];W[ko];B[jn];W[im]
C[No problem])
(;W[no]
C[Last point]))
(;W[sa];B[ca];W[ba]))
(;B[gb];W[fa];B[ga];W[ca];B[hc];W[gd];B[id]))
(;B[gb];W[fa]))
(;W[fc]
C[This seems ok];B[id];W[je];B[hc];W[gd];B[ic];W[jd];B[gb];W[fb]
(;B[hb];W[ga]
(;B[ha];W[ib];B[fa];W[ia])
(;B[jb];W[ha];B[ib];W[kb]))
(;B[ib];W[jb]
(;B[ec];W[ia];B[hb];W[ga])
(;B[ha];W[fa];B[ec];W[ja];B[eb];W[ia]))))
(;W[mp]))
(;B[je];W[ke];B[kf];W[kg];B[kd];W[le];B[jd])
(;B[lg];W[kg];B[nf];W[ne];B[me]
C[Double hane might work here]
(;W[ng];B[mf];W[mg];B[lh]
(;W[nh];B[ni];W[oh];B[oi];W[ph];B[qg])
(;W[ni];B[nh]
C[Doesn't work]))
(;W[oe];B[mf];W[mi];B[je];W[ke];B[jd];W[kd];B[ic];W[kc];B[ib])))
(;W[ng])
(;W[np])
(;W[fd])
(;W[lm])
(;W[ek]))
(;B[kg])
(;B[cq]
C[Other corner is still open]))
(;B[lp];W[lq];B[kp];W[kq];B[io];W[jp];B[jo]))
(;B[lp])
(;B[cn];W[co];B[dn]))
(;W[cn])
(;W[po]))
(;B[qo]
C[
])
(;B[qf]))
(;W[cn])
(;W[eb];B[db]))
(;W[po]))
(;W[po]
C[I'd want this approach]))
(;B[qo]
C[A fuseki search shows Pros like closing the corner]))

What about the corners? The 3-3 invasion in each of White's two corners is actually a tricky life-and-death problem. But consolidating in the centre is (a) smaller, and (b) possibly an negative if you want to invade later.

Would be more logical to close the lower left corner, which is more open.

This is larger than many of the previous plays, which were small. The endgame on the edge is bigger. The lower left beckons, though. See
http://senseis.xmp.net/?AllAbout33PointInvasion%2FDiagrams, the "ogeima ogeima". I thought that was called the "dragonfly".
White 104: Both players should study endgame tactics! White should win now.