Hi SoDesuNe, that's a really good point you make. I'll ask the teacher on his opinion about the shape. I've often heard him say we should refrain from playing certain moves which seem playable in even kyu-level games, because we lack the strength to back up our moves against the superior reading of the Chinese kids and pro teachers. I'll consider some other pincer options in future games.
Today there was no lecture, but tons of joseki study, go problems and we also went to the school (there wasn't anybody there yesterday). I played 2 games with Chinese kids. Usually they play very fast and run around, get distracted, etc, but especially the first opponent I played took a lot of time, which was nice, so I didn't have to feel guilty when I took even more.
(;GM[1]FF[4]CA[UTF-8]AP[CGoban:3]ST[2]
RU[Japanese]SZ[19]KM[7.50]
PW[Alice]PB[Hushfield]C[This is a game I played against a pupil at Yan An's go school. She was a little Chinese girl who, in stark contrast with most of the other kids, takes a lot of time to think. We played the game out until the end, and took over two hours. To give you an idea: all the other players in the school were on their third game by that time.]RE[B+18.5]
;B[pp]
;W[cd]
;B[pc]
;W[dq]
;B[qi]
;W[fc]
;B[do]
;W[co]
;B[cn]
;W[cp]
;B[dm]
;W[fq]
;B[ci]
;W[cg]
;B[ei]
;W[pe]
;B[nd]
;W[qc]
;B[qb]
;W[qd]
;B[rb]
;W[qg]
(;B[rh]C[This is a mistake in joseki. See variation for complete and correct joseki]
;W[og]
;B[oi]
;W[nh]LB[mg:A]C[Not the correct shape. Should be at A]
;B[jp]
;W[qn]
;B[ql]
;W[qq]
;B[pq]
;W[qp]
;B[po]
;W[rn]
;B[om]
;W[kc]LB[lc:A]C[This is too lax by white. Should be a severe attack at A]
;B[mc]
;W[ke]
;B[mj]
;W[jn]
;B[hp]
;W[kj]LB[jj:A]C[Better shape would be at A.]
;B[jl]
;W[kl]
;B[jk]
;W[kk]
;B[km]
;W[lm]
;B[ll]C[This is an absolute overplay by black. White should punish accordingly.]
(;W[mk]
;B[ml]
;W[lk]C[Bad shape by white.]
;B[nl]
;W[nj]
;B[ni]
;W[lh]
;B[jj]
;W[ki]C[The review stopped here, after white got scolded for playing too submissively. In the end, black got sente at the start of the endgame, and won with 18,5 points])
(;W[mm]
(;B[ml]
;W[jm]
;B[kn]
;W[ko]
;B[ln]
;W[lo]
;B[mn]
;W[mo]
;B[nm]
;W[jo]LB[jl:2][jp:1]C[Now white will definitely be able to live inside through attacking either of the two black groups.])
(;B[jm]
;W[mk]C[Still a lot smaller than the game variation for black.])))
(;B[nf]
;W[og]
;B[of]
;W[pf]
;B[ph]
;W[ri]
;B[rj]
;W[rh]
;B[qj]
;W[pg]LB[jc:A][qn:B]C[Now black can play in either the direction of A or B, depending on the board.]))
The second game went much in the same way, but my opponent played a little faster. Still, the game went on for a long time.
(;GM[1]FF[4]CA[UTF-8]AP[CGoban:3]ST[2]
RU[Japanese]SZ[19]KM[7.50]
PW[Jiang Yi Ming]PB[Hushfield]RE[B+11.50]
;B[pp]
;W[dc]
;B[qd]
;W[dp]
;B[nc]
;W[nq]
;B[pn]
;W[jp]
;B[qj]
;W[dj]
;B[de]
;W[ce]
;B[dd]
;W[cd]
;B[ec]
;W[df]
;B[cc]
;W[db]
;B[eb]LB[bc:A]C[This is a big mistake in the avalanche joseki. I haven't studied it yet, so I didn't know black should be at A instead.]
;W[cb]C[Very big loss for black.]
;B[bc]
;W[bb]
;B[mp]C[Not good, there is no ladder so need no ladder breaker]
;W[mq]
;B[cf]C[Overplay]
(;W[bd]
;B[ef]
;W[dg]
;B[eg]
;W[dh]
;B[jd]
(;W[ie]LB[qf:A]C[this is too deep from white. Should reduce at A (see variation). ]
;B[id]
;W[hd]
;B[hc]
;W[gc]
;B[gd]
;W[fd]
;B[he]
;W[ed]
;B[fc]
;W[ee]
;B[gb]LB[nf:B][of:A][og:C]C[This is a small move. Just sacrifice the 3 stones and play a big point around A-C]
;W[mh]
;B[ki]
;W[kh]
;B[jh]
;W[li]
;B[kg]
;W[lh]
;B[kj]
;W[mk]
;B[lj]
;W[mj]
;B[ni]
;W[mi]
;B[lm]
;W[ll]
;B[kl]
;W[mm]
;B[km]
;W[mn]
;B[lo]
;W[lp]
(;B[ko]C[Wrong by black, black should push and cut. Much more severe.]
;W[np]
;B[mo]
;W[no]
;B[nn]
;W[lk]
;B[kk]
;W[nm]
;B[on]
;W[oj]
;B[pl]
;W[ol]
;B[pk]
;W[oh]
;B[pi]
;W[oi]
;B[hp]LB[kp:A]C[Still wrong direction. Should push and cut at A]
;W[iq]
;B[jo]
;W[hq]
;B[cp]
;W[cq]
;B[co]
;W[bq]
;B[do]
;W[ep]
;B[cl]
;W[ck]
;B[dl]
;W[bn]
;B[fo]
;W[gp]
;B[go]
;W[fp]
;B[eo]
;W[fj]
;B[ek]
;W[ej]
;B[fk]
;W[gk]
;B[gj]
;W[hj]
;B[gi]
;W[fl]
;B[gl]
;W[hk]
;B[fm]
;W[hl]
;B[gm]
;W[hh]
;B[gh]
;W[hg]
;B[gg]
;W[gf]
;B[hf]
;W[ff]
;B[hi]LB[fg:A]C[A mistake. A connects in sente.]
;W[ih]
;B[ii]
;W[fg]C[Afterwards endgame was played. Black won by 11,5 points.])
(;B[kp]
;W[lq]
;B[ko]
(;W[kq]
;B[np]TR[kh][lh][mh][li][mi][mj][mk][ll][mm][mn]C[White is in big trouble.])
(;W[mo]
;B[kq]C[White's lower is completely erased.])))
(;W[qf]
;B[qh]
;W[qc]
;B[pc]
;W[rc]
;B[rd]
;W[pb]
(;B[ob]
;W[pd]
;B[oc]
;W[qe])
(;B[oc]
;W[rb])))
(;W[cg]
;B[bf]
;W[bd]
;B[bg]
;W[ef]
;B[fe]
;W[ch]))
Yan Laoshi pointed out several overplays I made in both of the games, but the kids didn't punish them sufficiently. Both times when we got to the endgame the kids were getting really distracted, and I managed to keep sente for longer than I should have.
Overall, I think the games today were a success: I set out the specific goal of taking more time for thinking about my moves, and I managed to do so even in a room full of Chinese kids shouting, running around, and - I kid you not - throwing go stones out of the window.
Non-go related: I had my first hundred-year-old egg today. It really looks disgusting, but it tastes surprisingly normal. They take a duck egg, boil it, than bury them in salty mud. You read that right: very salty mud. After doing that for a day or three, they put them in grass. And then yours truly eats them. Scrap one off the bucket list.
If you see any weird/bad moves by me not pointed out by Yan Laoshi, feel free to comment. All input is greatly appreciated.
I'm off: I got 99 problems, and they're still not done.