(;GM[1]FF[4]CA[UTF-8]AP[Sabaki:0.31.0]ST[2]RU[Japanese]SZ[19]KM[6.50]TM[900]OT[5x30 byo-yomi]PW[jinjate]PB[jgr314]DT[2017-06-04]PC[The KGS Go Server at http://www.gokgs.com/]RE[W+57.50]
;B[pp]BL[893.533]
;W[dd]WL[896.835]
;B[pd]BL[883.444]
;W[dp]WL[894.337]
;B[fq]BL[880.223]
;W[dn]WL[890.129]
;B[dr]BL[877.118]
;W[cq]WL[880.777]
;B[ip]BL[869.856]C[BG: Everything including this move is fine (I think). However, I think this move is less common than A or B without more black stones on the bottom, but I think it's playable. That said, this is an example of where you are starting to trade away side territory. With your move, C is a weak point as your sons noticed, and the move there prompted you to try to play on top of their stones. So, effectively this is where the trade started. My strategy suggestion would be to try playing A here to give yourself more secure side territory.]LB[hp:B][hq:C][iq:A]
;W[hq]WL[869.97]C[BG: I think this is a good invasion point, but it is MUCH too early for your kids to be invading. They should be approaching/enclosing the corners at this point. Corner, sides, then center.]
(;B[gp]BL[853.78]C[BG: You are rightly concerned about the connection between the two marked stones. But when white plays A in repsonse to your move, it leaves too many cutting points. I think a better way to connect would be to play A yourself. See the variation.]LB[hp:A]
;W[hp]WL[866.794]
;B[ho]BL[847.843]C[BG: The cutting points at A and B are problemmatic.]LB[go:A][io:B]
;W[iq]WL[863.078]
;B[jp]BL[843.457]
;W[jq]WL[854.931]
;B[kp]BL[840.995]
;W[lq]WL[851.15]
;B[kq]BL[831.419]C[At this point, your sons' group is alive. So, you should turn your attention to a corner.]
;W[kr]WL[847.655]
;B[lp]BL[827.65]
;W[mq]WL[845.365]
;B[mp]BL[821.873]
;W[nq]WL[840.719]
(;B[oq]BL[820.383]C[BG: I don't think you should have gone down this path, but now that you have gone down it, you're making the situation worse by changing strategies. If your goal is to build outside influence, I think you are better off playing at A and keeping your wall solid. Having a solid wall is more valuable than the points you are protecting in the corner with your move. In for a penny, in for a pound as the saying goes...]LB[np:A]
;W[np]WL[837.946]
;B[no]BL[814.698]
;W[op]WL[832.138]
;B[pq]BL[805.092]
;W[oo]WL[828.285]
;B[qn]BL[790.85]
;W[nn]WL[821.156]C[BG: Compare this position to the variation at move 27. In this position, black has a bit more corner territory, but the stones on the fourth line are now significantly weaker. I don't think that is a good trade.]
;B[fc]BL[764.198]C[BG: Normally, I would agree with you, but your shape at the bottom is very problemmatic. I don't have a good sense of which is more urgent, but playing at the bottom is somewhat urgent.]
;W[ec]WL[814.73]
;B[fd]BL[760.314]
;W[cf]WL[809.068]
;B[jc]BL[756.949]C[BG: Good sequence.]
;W[fb]WL[807.545]C[BG: This is too slow for white. Black should just ignore it and tenuki.]
;B[gb]BL[751.457]C[BG: I think A would be better. See variation for what happens if white gets another move here.]LB[qf:A]
;W[eb]WL[806.18]
;B[pf]BL[721.91]C[BG: Good move. You left a cutting point at A, but it is not an issue right now. ]LB[gc:A]
;W[hb]WL[801.395]
;B[gc]BL[692.157]
;W[ga]WL[798.301]
;B[hc]BL[684.034]
;W[ib]WL[795.621]
;B[jb]BL[680.838]
;W[ic]WL[793.13]
;B[id]BL[678.539]
;W[ha]WL[787.445]
;B[cl]BL[614.392]C[BG: If the goal is to play in the left center, splitting the side with A or B would be stonger because it gives you more of a base. The pincer your sons' play here at A is painful.]LB[cj:A][dj:B]
;W[cj]WL[774.838]C[BG: Unless you are willing to sacrafice the stone, you now have to jump towards the center, and white can build territory on the top left.]
;B[bn]BL[608.334]
;W[co]WL[768.547]
;B[el]BL[594.194]
;W[bk]WL[757.43]
;B[bl]BL[568.519]
;W[bo]WL[752.293]
;B[fm]BL[553.812]
;W[gr]WL[734.671]
;B[eo]BL[507.131]
;W[eq]WL[727.587]
;B[pj]BL[441.586]C[BG: This territory is a bit to large to secure with a single move like this. I think A or B would be good moves at this point.]LB[ch:A][oc:B]
;W[ph]WL[711.305]
;B[qh]BL[432.27]
;W[qg]WL[706.161]
;B[pg]BL[415.15]
;W[qi]WL[703.218]
;B[rh]BL[413.272]
;W[pi]WL[700.889]
;B[qj]BL[395.911]
;W[ri]WL[695.192]
;B[rg]BL[370.524]
;W[qc]WL[678.924]
;B[pc]BL[353.642]
;W[qd]WL[675.37]
;B[qe]BL[352.238]
;W[re]WL[672.892]
;B[rf]BL[346.473]
;W[pb]WL[670.923]
;B[ob]BL[336.848]
;W[qa]WL[659.049]
;B[nc]BL[315.215]
;W[sd]WL[654.064]
;B[ng]BL[280.631]
;W[ni]WL[638.184]
;B[lg]BL[268.358]
;W[mj]WL[632.364]
;B[ff]BL[245.718]
;W[jd]WL[629.739]
;B[je]BL[238.249]
;W[kd]WL[626.727]
;B[ke]BL[230.972]C[BG: if you keep marked stones connected with something like C instead, the white stones don't really have anywhere to go. But you need to watch A and B given the K16 stone.]LB[hd:A][ie:B][lc:C]TR[jb][jc]
;W[lc]WL[610.898]
;B[lb]BL[175.872]
;W[kb]WL[605.112]
;B[ka]BL[173.83]
;W[kc]WL[597.636]
;B[ja]BL[170.489]
;W[mb]WL[593.794]
;B[ld]BL[130.299]
;W[mc]WL[589.66]
;B[md]BL[126.759]
;W[ml]WL[578.521]C[BG: White is still not safe. The marked stones can be cut and there is a cutting point at A. Being able to threaten this white group would be useful. White also has good shot at the black group on the right. I think B threatening to make the cut is the better move here for black.

[BG: End comments\]]SQ[ml][nn]LB[ol:B][on:A]
;B[km]BL[88.847]
;W[ie]WL[560.475]
;B[hd]BL[85.254]
;W[kj]WL[554.381]
;B[hl]BL[12.633]
;W[mo]WL[543.595]
;B[ig]BL[30]OB[5]C[jgr314 [?\]: who is playing?
jinjate [-\]: jin and jate
]
;W[go]WL[496.134]
;B[gn]BL[30]OB[5]
;W[io]WL[493.75]
;B[hn]BL[30]OB[5]
;W[jo]WL[491.321]
;B[lo]BL[30]OB[5]
;W[ln]WL[487.877]
;B[fi]BL[30]OB[5]
;W[kh]WL[481.516]
;B[kg]BL[30]OB[5]
;W[jh]WL[478.67]
;B[ih]BL[30]OB[5]
;W[jg]WL[476.397]
;B[jf]BL[30]OB[5]
;W[le]WL[472.578]
;B[me]BL[30]OB[5]
;W[ij]WL[467.531]
;B[hj]BL[30]OB[5]
;W[jl]WL[460.655]
;B[jm]BL[30]OB[5]
;W[rj]WL[438.418]
;B[rk]BL[30]OB[5]
;W[qk]WL[435.189]
;B[ql]BL[30]OB[5]
;W[pk]WL[431.799]
;B[pl]BL[30]OB[5]
;W[ok]WL[427.317]
;B[rl]BL[30]OB[5]
;W[eg]WL[411.942]
;B[fg]BL[30]OB[5]
;W[ei]WL[406.401]
;B[ej]BL[30]OB[5]
;W[di]WL[401.837]
;B[dj]BL[30]OB[5]
;W[ck]WL[396.117]
;B[dl]BL[30]OB[5]
;W[po]WL[340.735]
;B[qo]BL[30]OB[5]
;W[pm]WL[334.795]
;B[qm]BL[30]OB[5]
;W[om]WL[329.244]
;B[nr]BL[30]OB[5]
;W[mr]WL[327.365]
;B[or]BL[30]OB[5]
;W[rq]WL[319.352]
;B[qr]BL[30]OB[5]
;W[qp]WL[314.01]
;B[rp]BL[30]OB[5]
;W[qq]WL[311.476]
;B[rr]BL[30]OB[5]
;W[if]WL[299.793]
;B[lf]BL[30]OB[5]
;W[oa]WL[290.635]
;B[nb]BL[30]OB[5]
;W[la]WL[285.512]
;B[ms]BL[30]OB[5]
;W[ls]WL[280.392]
;B[ns]BL[30]OB[5]
;W[im]WL[274.543]
;B[hm]BL[30]OB[5]
;W[il]WL[271.68]
;B[fr]BL[30]OB[5]
;W[fp]WL[263.022]
;B[fo]BL[30]OB[5]
;W[ep]WL[250.56]
;B[gq]BL[30]OB[5]
;W[cr]WL[240.592]
;B[cs]BL[30]OB[5]
;W[bs]WL[235.007]
;B[ds]BL[30]OB[5]
;W[br]WL[232.512]
;B[gs]BL[30]OB[5]
;W[hr]WL[229.5]
;B[fs]BL[30]OB[5]
;W[hs]WL[221.02]
(;B[ik]BL[30]OB[5]C[jinjate [-\]: /
]
;W[jk]WL[213.42]C[jgr314 [?\]: thanks
jinjate [-\]: ?
]
;B[hk]BL[30]OB[5]
;W[ii]WL[200.172]
;B[hf]BL[30]OB[5]
;W[hh]WL[195.95]
;B[he]BL[30]OB[5]C[jinjate [-\]: It's hard to beat the boys.. They had 4 hours of lesson today.
]
;W[hg]WL[191.871]
;B[if]BL[30]OB[5]
;W[hi]WL[185.753]
;B[gi]BL[30]OB[5]C[jinjate [-\]: Jate said you made some bad moves.\\
]
;W[mh]WL[173.602]C[jgr314 [?\]: yes.
jgr314 [?\]: you have won.
jgr314 [?\]: your territory on the upper left is big
]
;B[mg]BL[30]OB[5]
;W[oh]WL[166.34]
;B[og]BL[30]OB[5]
;W[nh]WL[159.566]C[jgr314 [?\]: and, by killing my big group, you got a lot in teh middle,too
]
;B[dk]BL[30]OB[5]C[jinjate [-\]: dont forget the 40 points
jgr314 [?\]: oh
jgr314 [?\]: I think you still won
]
;W[ch]WL[135.986]C[jinjate [-\]: ????????
]
;B[ef]BL[30]OB[5]
;W[df]WL[123.255]C[jinjate [-\]: ?????????????????????????????????????????????????????????????????????????????????????..................
]
;B[ed]BL[30]OB[5]
;W[dc]WL[119.797]C[jgr314 [?\]: what is that for?
jinjate [-\]: ?...
jinjate [-\]: he he
]
;B[in]BL[30]OB[5]
;W[jn]WL[111.457]
;B[sj]BL[30]OB[5]
;W[si]WL[106.672]
;B[sk]BL[30]OB[5]
;W[sh]WL[99.773]
;B[sg]BL[30]OB[5]
;W[cn]WL[75.414]
;B[bm]BL[30]OB[5]
;W[ee]WL[39.791]
;B[fe]BL[30]OB[5]
;W[de]WL[38.232]
;B[eh]BL[30]OB[5]
;W[dg]WL[35.641]
;B[fh]BL[30]OB[5]
;W[dq]WL[28.197]
;B[go]BL[30]OB[5]
;W[er]WL[21.633]
;B[es]BL[30]OB[5]
;W[dh]WL[17.958]
;B[gg]BL[30]OB[5]
;W[an]WL[4.029]
;B[am]BL[30]OB[5]C[jgr314 [?\]: you are running out of time
]
;W[ao]WL[30]OW[1]
;B[aq]BL[30]OB[5]
;W[ar]WL[30]OW[1]
;B[do]BL[30]OB[5]
;W[ak]WL[30]OW[1]
;B[bp]BL[30]OB[5]
;W[cp]WL[30]OW[1]
;B[na]BL[30]OB[5]
;W[pa]WL[30]OW[1]
;B[ma]BL[30]OB[5]
;W[ia]WL[30]OW[1]
;B[sf]BL[30]OB[5]
;W[se]WL[30]OW[1]
(;B[qf]BL[30]OB[5]
;W[rc]WL[30]OW[1]C[jgr314 [?\]: thanks.
]
;B[pn]BL[30]OB[5]
;W[on]WL[30]OW[1]
;B[ol]BL[30]OB[5]
;W[nl]WL[30]OW[1]
;B[lh]BL[30]OB[5]
;W[li]WL[30]OW[1]
;B[gh]BL[30]OB[5]
;W[ki]WL[30]OW[1]
;B[en]BL[30]OB[4]
;W[cm]WL[30]OW[1]
;B[dm]BL[30]OB[4]
;W[al]WL[30]OW[1]
;B[]BL[30]OB[3]
;W[]WL[30]OW[1]TW[aa][ba][ca][da][ea][fa][ja][ka][ra][sa][ab][bb][cb][db][jb][lb][qb][rb][sb][ac][bc][cc][jc][sc][ad][bd][cd][rd][ae][be][ce][af][bf][ag][bg][cg][ah][bh][ai][bi][ci][ji][mi][oi][aj][bj][jj][lj][nj][oj][pj][qj][kk][lk][mk][nk][kl][ll][jm][km][lm][mm][nm][kn][mn][ko][lo][no][ap][bp][ip][jp][kp][lp][mp][aq][bq][kq][ir][jr][lr][as][is][js][ks]TB[oc][gd][nd][od][ge][ie][le][ne][oe][pe][gf][kf][mf][nf][of][qg][fj][gj][ek][fk][gk][fl][gl][sl][em][gm][rm][sm][fn][rn][sn][ro][so][qp][sp][qq][rq][sq][pr][sr][os][ps][qs][rs][ss]C[jinjate [-\]: thx
]
)(;B[rc]BL[30]OB[5]
(;W[qf]WL[30]OW[1]C[jinjate [-\]: гтвщ
jgr314 [?\]: could you let me undo my last move, please?
]
)(;W[qf]WL[30]OW[1]
)))(;B[dq]BL[30]OB[5]
;W[er]WL[216.997]
))(;B[np]
;W[oq]C[BG: White should not push here, but I think this is what you were worried about. So, I'll illustrate.]
;B[op]C[BG: With the solid fourth-line wall, this becomes (I think) a workable trade for black if black can use the wall properly. To use a finance metaphor -- black has "gone long" on the wall by ceding a lot of territory to white to create it. ]
))(;B[hp]C[BG: I'd suggest something like this.]
;W[gq]
;B[gp]
;W[fr]C[BG: A and B are possible continuation moves to consider. My intuition is that A is the beter choice, but you'd need to carefully consider the cut at B. I'm going to go with A just to illustrate, but I haven't read out the cut too far.]LB[eq:A][fp:B]
;B[eq]
;W[iq]
;B[jq]
;W[jr]
;B[kq]
;W[kr]
;B[lr]
;W[er]
;B[dq]C[BG: Assuming that I'm right that the cut at A can be handled, white has a living shape but is enclosed by black. This is a good outcome for black if black can make use of the central influence.]
))