(;GM[1]FF[4]CA[UTF-8]AP[CGoban:2]ST[2]
RU[Japanese]SZ[19]KM[0.50]
PW[Round4]PB[Andrew]
;B[pd]CR[pd]
;W[dp]CR[dp]
;B[pq]CR[pq]
;W[cd]CR[cd]
;B[ec]CR[ec]
;W[df]CR[df]
;B[cc]CR[cc]
;W[bc]CR[bc]
;B[dd]CR[dd]
;W[ce]CR[ce]
;B[cb]CR[cb]
;W[cj]CR[cj]
;B[fq]CR[fq]
;W[hq]CR[hq]
;B[cq]CR[cq]
;W[cp]CR[cp]
;B[dq]CR[dq]
;W[ep]CR[ep]
;B[fr]CR[fr]
;W[go]CR[go]
;B[ej]CR[ej]C[The first major decision of the game.  Yes, B has all 4 corners but I want to reduce the W moyo.  Is this the best move for doing so?  Would a shoulder hit be too deep?]
;W[dj]CR[dj]
;B[ek]CR[ek]
;W[dl]CR[dl]
;B[hd]CR[hd]
;W[hf]CR[hf]
;B[ff]CR[ff]
;W[id]CR[id]
;B[ic]CR[ic]
;W[jc]CR[jc]
;B[hc]CR[hc]
;W[jd]CR[jd]
;B[he]CR[he]
;W[if]CR[if]
;B[eg]CR[eg]
;W[dh]CR[dh]
;B[gi]CR[gi]
;W[gf]CR[gf]
;B[fe]CR[fe]
;W[kf]CR[kf]
;B[qg]CR[qg]C[Horrible move.  B must play O17 to prevent the top W group from settling.]
;W[bq]CR[bq]
;B[br]CR[br]
;W[bp]CR[bp]
;B[ar]CR[ar]
;W[pb]CR[pb]
(;B[qc]CR[qc]C[This is slack.  B is in no danger here.

Either P17 or Q17 would be better.

]
;W[nc]CR[nc]C[I'm not sure how tewari analysis works, but I'm pretty sure B got a raw deal in the upper right.]
;B[jq]CR[jq]
;W[hp]CR[hp]
;B[mp]CR[mp]
;W[po]CR[po]
;B[pp]CR[pp]
;W[qo]CR[qo]
;B[rp]CR[rp]
;W[ro]CR[ro]
;B[qp]CR[qp]C[S3 better.]
;W[qj]CR[qj]
;B[qb]CR[qb]
;W[oc]CR[oc]
;B[oo]CR[oo]C[This is big.]
;W[on]CR[on]
;B[nn]CR[nn]
;W[om]CR[om]
;B[nm]CR[nm]
;W[nl]CR[nl]
(;B[ol]CR[ol]C[I thought for quite some time before making this move.  True, W has to submit, but once W reinforces at the vital point B has no good follow-up.  Without a follow-up, the cut at P8 becomes a bad move.

If B is to attack, R7 to spoil W's shape in sente seems like a much better alternative.  On the outside, N8 is also not bad.  If I had the chance to play this position again, I would force with R7 first.
]
;W[qm]CR[qm]C[B has no good move.

Playing atari against O8 from either direction is no good.

Q8 nobi leads to the loss of either of either P5 or O6/O7 via ladder.

P9 nobi threatens nothing and W can break apart B's lower right by O5 followed by N5.]
;B[no]CR[no]C[Sad.]
;W[nk]CR[nk]
;B[pl]CR[pl]
;W[ql]CR[ql]
;B[ri]CR[ri]
;W[qi]CR[qi]
;B[rh]CR[rh]
;W[rj]CR[rj]
;B[ml]CR[ml]
;W[mk]CR[mk]
;B[jo]CR[jo]
;W[sp]CR[sp]
;B[sq]CR[sq]
;W[so]CR[so]
;B[rr]CR[rr]
;W[ir]CR[ir]
;B[jr]CR[jr]
;W[js]CR[js]
;B[ks]CR[ks]
;W[is]CR[is]
;B[kr]CR[kr]
;W[bb]CR[bb]
;B[ne]CR[ne]C[I thought this was a nice move, but after W's reply it is obvious that this stone needs to be at P13.]
;W[pg]CR[pg]C[Ouch!]
;B[pf]CR[pf]
;W[qh]CR[qh]
;B[qf]CR[qf]
;W[og]CR[og]C[All of a sudden W is threatening to make a considerable amount of territory in the center.  All this because O15 was not played at P13.]
(;B[mf]CR[mf]C[The only move.  N16 followed by N13 might also work.]
;W[md]CR[md]
;B[mh]CR[mh]C[This allows the N12 stone to get cut.  Even though the cutting stones managed to escape, perhaps N13 would have been better.]
;W[oe]CR[oe]
;B[of]CR[of]
;W[ng]CR[ng]
;B[mg]CR[mg]
;W[nf]CR[nf]
;B[me]CR[me]
;W[od]CR[od]
;B[ph]CR[ph]
;W[oh]CR[oh]
;B[oi]CR[oi]
;W[pi]CR[pi]
;B[nh]CR[nh]
;W[ph]CR[ph]
;B[jg]CR[jg]
;W[jf]CR[jf]C[I'm not sure that the reinforcement by W here was necessary.  Oh well, I won't complain.]
;B[ji]CR[ji]
;W[kh]CR[kh]
;B[ki]CR[ki]
;W[li]CR[li]
;B[lh]CR[lh]
;W[lj]CR[lj]
;B[kg]CR[kg]
;W[ih]CR[ih]
;B[jh]CR[jh]
;W[eh]CR[eh]
;B[fh]CR[fh]
;W[gg]CR[gg]
;B[fg]CR[fg]
;W[hj]CR[hj]
;B[jb]CR[jb]C[At this point, having suffered losses on the right, I decided I had to recoup by attacking W's top group.  I initiated what I thought was a sente sequence at the top.]
;W[kb]CR[kb]
;B[ib]CR[ib]
;W[ll]CR[ll]C[I thought that W would have to guard against the clamp at M18, but amazingly W kept his sente and played tenuki.  To me, it seems M17 is bigger than M8.]
;B[lb]CR[lb]
;W[kc]CR[kc]
;B[ka]CR[ka]
;W[mb]CR[mb]
;B[lc]CR[lc]
;W[ld]CR[ld]
;B[lf]CR[lf]
;W[pe]CR[pe]
;B[qe]CR[qe]
;W[pc]CR[pc]
;B[qd]CR[qd]
;W[qa]CR[qa]
;B[ra]CR[ra]
;W[pa]CR[pa]
;B[sb]CR[sb]
;W[ca]CR[ca]
;B[db]CR[db]
;W[mm]CR[mm]C[At this point I tried to figure out whether I could kill the W group up top, or at least force it out into the open, hoping to somehow get enough strength to reduce the lower left W moyo.  By my calculations W has a 10-point lead at this stage.

Sadly, my life and death reading failed me once again.  W can live with the throw-in at M19, which I did not see. ]
;B[el]CR[el]
;W[dm]CR[dm]
;B[ie]CR[ie]
;W[je]CR[je]
;B[le]CR[le]
;W[hi]CR[hi]
;B[gh]CR[gh]
;W[hh]CR[hh]
;B[ig]CR[ig]
;W[hg]CR[hg]
;B[il]CR[il]
;W[hl]CR[hl]
;B[hm]CR[hm]
;W[ik]CR[ik]
;B[jl]CR[jl]
;W[gm]CR[gm]
;B[gl]CR[gl]
;W[hk]CR[hk]
;B[gn]CR[gn]
;W[fm]CR[fm]
;B[fn]CR[fn]
;W[hn]CR[hn]
;B[im]CR[im]
;W[fo]CR[fo]
;B[jk]CR[jk]
;W[fl]CR[fl]C[I thought it was extremely strange that W played this sequence, because it let me seal his top group in.]
;B[gk]CR[gk]
;W[la]CR[la]
;B[ma]CR[ma]
;W[na]CR[na]C[Doh!

W won by 19.5 points.])
(;B[md]CR[md]
;W[mc]CR[mc]
;B[mg]CR[mg]
;W[oe]CR[oe]
;B[of]CR[of]
;W[mf]CR[mf]
;B[nf]CR[nf]
;W[ng]CR[ng]
;B[lf]CR[lf]
;W[mh]CR[mh]
;B[lg]CR[lg]
;W[lh]CR[lh]C[B doesn't get cut, but W's territory isn't reduced as much.]))
(;B[qm]CR[qm]
(;W[no]CR[no]
;B[op]CR[op]
;W[mn]CR[mn]
;B[np]CR[np]
;W[mm]CR[mm]
;B[pn]CR[pn]C[B takes a huge corner but W gets the tortoise shell in the center.  With no weak B groups on the board, W might have difficulty leveraging his thickness.])
(;W[pm]CR[pm]
;B[pl]CR[pl]
;W[ol]CR[ol]
;B[pk]CR[pk]
;W[ql]CR[ql]
;B[qk]CR[qk]
;W[rl]CR[rl]
;B[rk]CR[rk]
;W[rm]CR[rm]
;B[pj]CR[pj]
;W[no]CR[no]
;B[op]CR[op]
;W[mn]CR[mn]
;B[np]CR[np]
;W[mm]CR[mm]
;B[ko]CR[ko]C[This result is inferior to the result W gets by cutting straight away at O5.])
(;W[pn]CR[pn]C[This move is out of the question.]
;B[ol]CR[ol]
;W[pl]CR[pl]
;B[ok]CR[ok])))
(;B[pc]CR[pc]
(;W[ob]CR[ob]
;B[qb]CR[qb]
;W[nc]CR[nc])
(;W[qb]CR[qb]
(;B[ob]CR[ob])
(;B[nc]CR[nc]
;W[rd]CR[rd]
;B[qe]CR[qe]
;W[re]CR[re]
;B[rf]CR[rf]
;W[qd]CR[qd]
;B[pe]CR[pe]
;W[nb]CR[nb]
;B[mb]CR[mb]
;W[ob]CR[ob]
;B[md]CR[md]C[B can start to mount pressure on the top W group.])))
(;B[oc]CR[oc]
;W[qc]CR[qc]
;B[ob]CR[ob]
;W[re]CR[re]
;B[qe]CR[qe]
;W[rf]CR[rf]
;B[qf]CR[qf]))