Friday, June 30, 2017

OGC Day 3

Today was day 3 of Osaka Go Camp, after our Wed-Thu weekend. (The pros play their official matches on Wednesdays and Thursdays, so those are our days off.) On Wednesday, I went to Nara on my own.

On Thursday, we had a group tour of Koyasan.

A few of us split off and took a detour through the incredible cemetery/forest.


We had told the others we were going to walk to the next bus stop while they waited for the bus, but the next bus stop was so close that we decided to go a little further.  And then further.  And further.  Then we veered off through the cemetery/forest, still thinking we'd meet up with them at any minute.  It was quite a while before we found them again, though.  And our delightful leader Hyodo-san was worried about us.

I feel badly that he was worried, but our detour was the best part of the trip.

Today we were back at the TTS for another league game day.  I played Ohgaki-san, 1 dan.

I won by 5 points.  Our game was reviewed by Maeda-sensei.

(;GM[1]FF[4]CA[UTF-8]AP[CGoban:3]ST[2] RU[Japanese]SZ[19]KM[0.50] PW[Becci]PB[Ogaki-san 1d]LB[qh:1][rj:3][do:2]C[W+5 (no komi) Reviewed by Maeda-sensei.] ;B[dp] ;W[pd] ;B[dc] ;W[ce] ;B[ed] ;W[pq] ;B[df] ;W[cn] ;B[cf] ;W[ck] ;B[co] ;W[dn] ;B[fp] ;W[hq] ;B[fq] ;W[jc] ;B[po] ;W[np] ;B[qq] ;W[qr] (;B[pp]C[Maeda did not like this move for Black (but I think Guo Juan generally considers this a possibility).] ;W[oq] ;B[qk] ;W[rq] ;B[qf] ;W[nd] ;B[qc] ;W[qd] ;B[rd] ;W[pc] ;B[rb] ;W[qb] ;B[rc] ;W[gc] ;B[qp] ;W[ch] ;B[nn] (;W[qh]LB[rd:A][po:B]C[This is not a good move. Since Black's A and B groups are both strong, this is not an interesting place to play. Also, White owes a move on the bottom.] ;B[rp] ;W[pb] ;B[rg] ;W[og] ;B[id] ;W[ic] ;B[gd] ;W[fc] ;B[fd] ;W[rh] ;B[qe] ;W[pl] ;B[ql] ;W[cb] ;B[db] ;W[bf] ;B[bg] ;W[be] ;B[cg] ;W[cc] ;B[eg]C[Black does not need to defend here. Black should take sente.] ;W[bn] ;B[bo] ;W[kq]C[(It's about time!!)] ;B[pm] ;W[gr] ;B[fr] ;W[jd] ;B[ie] ;W[kf] ;B[jg] ;W[ei] ;B[kg] (;W[gh] (;B[hg] ;W[gm] ;B[ii] ;W[oi] ;B[gj] (;W[fi] ;B[ik] ;W[ra] ;B[se] (;W[do] (;B[bp] (;W[rj] ;B[rr] ;W[rs] ;B[sq] ;W[pr] ;B[mh] ;W[nj] ;B[of] ;W[qj] ;B[mf] ;W[pk] ;B[rm] ;W[le] ;B[fk] ;W[el] ;B[ga] ;W[hb] ;B[ko] ;W[kp] ;B[lj] ;W[nl] ;B[jo] ;W[fs] ;B[es] ;W[gs] ;B[dr] ;W[gg] ;B[dh] ;W[di] ;B[ci] ;W[cj] ;B[bi] ;W[dd] ;B[de] ;W[cd] ;B[ec] ;W[ff] ;B[ek] ;W[dk] ;B[fe] ;W[im] ;B[lp] ;W[lq] ;B[mp] ;W[mq] ;B[km] ;W[no] ;B[mn] ;W[il] ;B[jk] ;W[lk] ;B[kk] ;W[mj] ;B[mi] ;W[hf] ;B[me] ;W[md] ;B[fl] ;W[fn] ;B[em] ;W[fo] ;B[dl] ;W[cl] ;B[ho] ;W[bj] ;B[iq] ;W[ir] ;B[jq] ;W[jr] ;B[ll] ;W[qg] ;B[if] ;W[hh] ;B[ig] ;W[gl] ;B[mk] ;W[gi] ;B[gk] ;W[hp] ;B[io] ;W[rk]) (;W[rr]C[This is the biggest endgame.])) (;B[cp]LB[eo:A]C[Black should defend this way, so that White A is not sente.])) (;W[ao]C[This is a better move for White.])) (;W[fk]C[White could also sacrifice one stone.])) (;B[fi] ;W[fh] ;B[eh]C[The ladder is good for Black; Black should cut and fight.])) (;W[gi]C[This would be normal for White.])) (;W[kp]C[White should play somewhere on the bottom to defend. If Black plays here first, Black can split White and attack.])) (;B[qp]C[He said this is normal: protect the weak stone. ]))

As usual, Maeda-sensei reviewed our homework.  Then we had a lecture by Ha Yongil, 6p.  He reviewed the official game he played yesterday.  There was a really interesting life-and-death problem in the middle of it.  None of us saw the answer (including Francis Meyer, 1p).  When Ha Yongil finally showed us how to solve it, Francis said he had never seen that tesuji in a game before, only in books.  Here, Shawn and Arthur are taking a stab at the problem:

I signed up to play in the simul games against Ha Yongil.  I took 3 stones, knowing I didn't stand a chance.  Here's the game.

(;GM[1]FF[4]CA[UTF-8]AP[CGoban:3]ST[2] RU[Japanese]SZ[19]HA[3]KM[0.50] PW[Yongil Ha, 6p]PB[Becci]AB[pd][dp][pp]LB[dc:5][mk:1][dm:3][gn:2][qr:4]C[W+res.] ;W[cd] ;B[jp] ;W[qn] ;B[ql] ;W[qq] ;B[pq] ;W[qp] ;B[po] ;W[rn] ;B[om] ;W[nc] ;B[lc] ;W[ne] ;B[qf] ;W[ic] ;B[le] ;W[ng] ;B[lg] ;W[pb] ;B[qc] ;W[ni] ;B[li] ;W[pg] (;B[mk]C[This was my biggest mistake of the game. It's not a bad move in and of itself, but Black R13 is urgent.] ;W[qg]C[Now White gets to become extremely strong, and makes Black really weak in the corner.] ;B[qb] ;W[rf] ;B[re] ;W[qe] ;B[rd] ;W[pf] ;B[ob] ;W[oc] ;B[pc] ;W[nb] ;B[pa] ;W[fq] ;B[eq] ;W[fp] ;B[cn] ;W[hp] ;B[jq] ;W[in] (;B[gn] ;W[hn]LB[gn:A][hn:B]C[The A-B exchange is bad -- it fixes White's problems.] ;B[kn] ;W[en] (;B[dm]C[This does not protect the corner in this case.] ;W[em] ;B[dl] ;W[do] ;B[co] ;W[cq] ;B[cp] ;W[er] ;B[dq] ;W[dr] (;B[qr]C[This is not sente while Black has the cut at Q8.] ;W[rr] ;B[pr] ;W[bq] ;B[ch] ;W[ed] (;B[cc]C[This is not good, since it secures White's corner.] ;W[dc] ;B[bd] ;W[bc] ;B[ce] ;W[cb] ;B[rs] ;W[rl] ;B[qk] ;W[rk] ;B[hd] ;W[hc] ;B[ef] ;W[fk] ;B[ej] ;W[fj] (;B[kl] ;W[ei] ;B[di] ;W[eh] ;B[cg] ;W[je] ;B[ke] ;W[jf] (;B[ji]C[This is not necessary. ] ;W[qj] ;B[pj] ;W[pi] ;B[gr] ;W[hr] ;B[ir] ;W[hs] ;B[gf] ;W[de] ;B[df] ;W[be] ;B[jb] ;W[jc] ;B[kb] ;W[cf] ;B[bf] ;W[ce] ;B[rq] ;W[rp] ;B[sr] ;W[oj] ;B[ol] ;W[ih] ;B[dg] ;W[ek] ;B[dj] ;W[iq] ;B[ip] ;W[hq] ;B[ha] ;W[gb] ;B[ii] ;W[il] ;B[fi] ;W[gi] ;B[fh] ;W[fg] ;B[gh] ;W[gg] ;B[hh] ;W[hg] ;B[hi] ;W[ff] ;B[ig] ;W[if] ;B[jh] ;W[ee] ;B[hl] ;W[hk] ;B[jr] ;W[an] ;B[bn] ;W[ao] ;B[am] ;W[bp] ;B[bo] ;W[ap] ;B[bl] ;W[bg] ;B[bh] ;W[af] ;B[el] ;W[fl] ;B[qo] ;W[ro] ;B[eg] ;W[jk] ;B[kk] ;W[qm] ;B[ok] ;W[pk] ;B[pl] ;W[io]) (;B[ee]C[Probably this is best, ]) (;B[be]C[Or maybe this.])) (;B[ei]C[Black should probably just respond here.]) (;B[jm]C[If Black is going to play on this side, this is probably better.])) (;B[fd]C[This should be better.])) (;B[cr]C[Black should just play here, which is normal.])) (;B[dn]C[If Black wants to protect the corner, Black should play this wya.])) (;B[kn]C[Black should just play here.])) (;B[qg]C[Black should just play here.]))

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