(;FF[4]GM[1]PC[Online Go.com: http://www.online-go.com]GC[Game ID: 273403]GN[OGS Kuksu  6th Cycle (Main Class), Round 1 Group 39]DT[2011-04-02,2011-06-21]PB[joppon]PW[weavehole]BR[8 kyu]WR[29 kyu]OT[1 days / move]CP[Creative Commons: Attribution-NonCommercial 3.0 Unported]EV[OGS Kuksu  6th Cycle Main Class]RO[1]SZ[19]KM[6.5]RU[Japanese]HA[0]C[I should first say that my book learning is very limited. So almost everthing I tell you is based on my experiences.];B[pd]
;W[dp]C[First I play with certain principles always in mind:

1:Maintenance of the balance between influence and territory

2: At your level make sure you don't become over concentrated

3: When fighting, connect your stones and stop your opponent from connecting his. THIS IS BIG. EXTREMELY IMPORTANT.];B[qp];W[dd];B[fq];W[eq];B[fp]
(;W[ch]C[No. See variations];B[co];W[cp];B[do];W[fr];B[gr];W[fs]
;B[ep]C[Getting boxed in is absolutely a good way to lose against stronger opponents. Or any opponent. See next comment.];W[dr]
;B[dk]C[The sequence from B9 to B17 is bad for white and stems directly from W8.]
(;W[pp]C[Not necessary.See variation.];B[pq];W[po];B[oq];W[qm];B[qo];W[qn];B[on];W[pn];B[qj]
;W[rk]C[No!!!!!!!. When faced with possibly being boxed in; first find an escape route.Then create a base.];B[qk];W[rl];B[rn];W[om];B[rm];W[ql];B[rj];W[oo];B[fd];W[ec]
;B[cf];W[ce];B[df];W[be];B[pl];W[nn];B[qf]
(;W[qc]CR[ap][bp][aq][bq][br][cq][cr][dq][ds][es][er][cs][bs][ar][as][on]
[sl][sk][aa][ab][ac][ad][ae][bd][bc][bb][ba][ca][cb][cc][cd][dc]
[db][da][ea][eb]MA[or][os][pr][ps][qr][qq][rq][rp][ro][so][sp][sq][sr][rr][rs][qs]
[ss][sn][sm][bo][ao][rf][sf][rg][sg][rh][sh][ri][si][sj][qe][re]
[se][sd][rd][qd]C[Not necessary. White already has two of the four corners. Black's influence is already looking ominous. It is very difficult for me to suggest where white should play. Because I have never played in such a concentrated way against human opponents. Alright, see variations. But first count: B=36pts (assumming W46 has not been played); W=42.5. It is very hard for even many 1D's to judge influence. But from my experience I would say that the amount of influence Black has is worth far more pts than the 6.5pts separating black and white.];B[pc];W[qd];B[qe];W[pb];B[ob];W[pa];B[oa];W[rb]
;B[mc]C[Boxed in again.];W[bf];B[jj];W[ef];B[ic]
;W[dg]C[Over-concentrated. 60 gives white just 10pts and absolutetly pitiful influence. This is what is meant by small.];B[nk]
;W[fe]C[See W60];B[mp];W[ln];B[mm];W[mn];B[lm];W[kp];B[kn];W[lo];B[lq];W[kq]
;B[iq]
;W[gd]C[Small.];B[if]C[The game is essentially over. Your biggest problem seems to be that you play too often in a single area. Another principle I used to use consciously but is now a part of my intuitive understanding of the game, is: Try to play no more than four successive moves in any one area of the board unless you're in the middle of a fight. Or starting one. Three seems to be the best (most efficient) or two moves is also good. But it depends on the situation. My final advice to you, if you're lazy like me and can't be bothered to study; and even if you're not. In every game, at some point, invade and fight like crazy. If you check out my past games you'll see that, recently in particular, my fighting has given me a great deal of advantage over those whose knowledge of strategy is probably greater than mine. This is the last comment.];W[fc];B[gi];W[ei];B[fj];W[bk];B[cm];W[bm];B[bn];W[bp];B[bl]
;W[cl];B[dl];W[al];B[ra];W[qb];B[rd];W[rc];B[re];W[hg];B[ig]
;W[hf];B[ie];W[he];B[gb];W[hb];B[hc];W[kh];B[mh];W[ji];B[ij]
;W[ii];B[hi];W[ol];B[ok];W[kj];B[jo];W[kk];B[li];W[ki];B[jl]
;W[qq];B[rq];W[ih];B[hh];W[id];B[jd];W[hd];B[ke];W[lh];B[mg]
;W[mi];B[mj];W[lj];B[mk];W[ni];B[og];W[pi];B[qh];W[qi];B[ri]
;W[ml];B[ll];W[nl];B[lk];W[kl];B[km])
(;W[jd]C[Laying down goalposts.];B[lc]
;W[nd]MA[lc][pd]C[Laying down goalposts. Separating marked stones.];B[le]C[Separate the marked stones.]MA[jd][nd];W[dm]MA[dk][do][co]C[Separate the marked stones.];B[bp];W[bq]
;B[bm]MA[bm][dk]C[Black is trying to connect. White has no time to stop this now.];W[jp]MA[gr][oq]C[Laying down goalposts. Separating the marked stones.]
(;B[iq]C[Stops the ladder braker, W54, and secures some pts. See var.]
(;W[ol]C[On hindsight, see var.];B[ok]
;W[pe]MA[pd][qf]C[An attack, but white has no time to follow it up. See var. Separate the marked stones];B[qe]C[Connect the stones.];W[gc]MA[jd][ec]C[connect the stones];B[ic]MA[gc][jd]C[stop the connection];W[id]C[connect];B[hc];W[hd];B[gd]
(;W[jc]C[See var];B[fc];W[ib];B[gb]
;W[nb]MA[lc][le]C[The marked stones have become slightly isolated. but white is still weak and thin. Thin means white has many weaknesses. And all of this variation is just hypothesis. From now on never, ever allow your opponent from getting as much influence as I had over you in this game. It's just too difficult to come back from unless you are markedly superior to your opponent. Of course, if you were, you would not allow this situation to arise in the first place. Unless you were experimenting or practicing invasion techniques.])
(;W[fc]MA[hc][gd]C[So-called broken shape. Quite good for white. I think.];B[jc]
;W[ee]MA[df][fd]C[Separate the marked stones. Now white can fight. But white still has much weakness elsewhere.]))
(;W[mq]MA[iq][oq]C[Separate the marked stones]))
(;B[lq];W[gq];B[hq];W[gp]
(;B[go];W[hp];B[ip];W[ho];B[hn];W[io];B[iq];W[fo];B[eo];W[gn]
;B[jo]C[Black would like to cut but...];W[jq]
(;B[ir];W[jr])
(;B[jr];W[ir];B[hr];W[kr];B[is];W[ko];B[kq];W[jn]))
(;B[hp];W[go];B[en];W[fn];B[eo]
;W[in]MA[go][jp]TR[in][nn]C[Connect the stones and build influence (triangles). But still Black is greatly favourable.]))))
(;W[op]C[The idea is to 'approach' the corner and then attack it.];B[oq];W[nq];B[pq];W[np]
(;B[qn]
;W[jq]MA[np][nq]C[The rule, apparently, is: the 2 marked stones should be followed be the 3-space extension. If you choose to extend, that is. Notice that Black's potential territory has been greatly reduced.])
(;B[po]
(;W[jq])
(;W[jp]))))
(;W[dn]C[At your level I guess it's quite important to  have a secure base from which to move into the centre.]
(;B[jq])
(;B[jp]))
(;W[cn]C[This is even better at securing the territory/pts.]
(;B[jq])
(;B[jp])))