(;GM[1]FF[4]SZ[19]AP[SmartGo:3.1.7]CA[shift_jis]
PW[AlphaGo]
PB[AlphaGo]
EV[AlphaGo selfplay]RO[37]
KM[7.5]
RE[W+R]
RU[Chinese]MU[0];B[pd];W[dd];B[qp];W[dp];B[np];W[qc];B[qd];W[pc];B[nc];W[oc]
;B[od];W[nb];B[pj];W[fq];B[cc];W[cd];B[dc];W[ec];B[eb];W[fb];B[fc];W[ed]
;B[gb];W[db];B[fa];W[cb];B[gp]
(;W[gq]
C[Recently it has become quite normal for White to play away after Black plays the shoulder hit, so I added a var with White approaching the Black shimari in the LR corner. ]
;B[ip];W[ql];B[pl]
(;W[lq]LB[nr:A][qo:B]
C[It would have been perfectly reasonable to live on the right with this move (see var). The idea with White 32 seems to be that if Black now answers at A, and White then attaches at B, the Black corner will potentially become over concentrated, with the exchange of 32 for Black A a profitable kikashi for White. ]
;B[qk]
C[In Japan this can be described as 'kiai', or fighting spirit, with Black refusing to bend to White's will, but I will argue that there are logical reasons for each move. Both players must attempt to make efficient use of each stone, or to blunt the effectiveness of the opponent's stones. Comparitively efficient play will create a positional advantage. Therefore, it is not unusual for one side to try to play a kikashi or probe, and the other side will play away rather than answering to get inefficient shape. ]
;W[lo];B[oq];W[jn]LB[in:A]
C[White 36 is better shape than the capping move at A, which is a weak connection to the right. I will attempt to demonstrate this with a variation for Black 39. ]
;B[kp];W[lp]
(;B[in]
C[Covering on the third line might seem the natural move for Black 39, but it is not effective (see var). Maybe it is suprising that cutting White off is not important, but one must realise that Black is defending in this local fight. Black has invested two moves at A and B to take sizable profit on the right, and now it is White's turn to attack. ]
LB[qk:A][oq:B];W[im];B[hn];W[iq]
(;B[jm]
C[Cutting at 43 gives Black a temporary advantage in the center, and is better than cutting White off on the side (see var). ]
;W[jq];B[mc]LB[rc:A]
C[Black 45 is a big move, finally finishing the joseki. When Black has territory on the right side, it is generally not good for Black to hane at A and enter the modern variation. ]
;W[mb];B[lc];W[il]LB[jn:A]
C[White's cutting stone at A cannot be captured, and White has taken back the advantage in this fight. ]
;B[jl];W[jk];B[bc];W[bb];B[ik];W[gm];B[gl]
C[Black is offering to sacrifice some stones in the center.]
(;W[kl]LB[jn:A]
C[White refuses the offered sacrifice (see var). Black had no way to capture the stone at A, but now White forces Black to take it! ]
;B[km];W[lm];B[kn];W[ko];B[jo];W[ln];B[jn]
C[White seems to be falling apart, when just a few moves ago White had opportunities to eat a few Black stones. This was not the intuitive way to play, but when one looks closely, it becomes apparent that White's wall on the right is reducing Black's moyo, and White can have ideas of invading at A or B. White also has some potential on the left side, and this is suprisingly good for White. ]
LB[pm:A][qo:B];W[fl];B[kk];W[jj];B[hm];W[ll];B[cj];W[cm];B[ij];W[ji];B[ii]
;W[jh];B[co];W[cp];B[do]
(;W[ck]
C[White is preparing to hane on top of the two Black stones, which was not effective immediately (see var). ]
;B[bk];W[dj];B[cl];W[dk];B[bm];W[dl];B[bl];W[gk];B[hl];W[ci];B[bj];W[gi]
;B[ep];W[eq];B[hg]LB[di:A][lj:B]
C[Black 93 threatens the cut at A, while also looking to play at B in the center. In the fight on the left, Black has managed to keep the initiative. ]
;W[bi];B[bp];W[bq];B[cq];W[dq];B[aq];W[lb];B[kc];W[cr];B[lj]
C[With perfect timing, Black returns to the right half of the board. ];W[lk]
(;B[mi]
C[No, Black does not want to capture the four stones (see var). ];W[kj];B[om]
C[Black 107 finishes the Black territory. ];W[bo];B[dm];W[em];B[bn];W[lg]
;B[mg];W[ap];B[dn];W[rd];B[re];W[rc];B[lf];W[fd];B[gd];W[ge];B[hd];W[fg]
;B[mr];W[rf];B[se];W[ok];B[oj];W[qe];B[qf];W[pe];B[rg];W[ni]
(;B[nh]
C[135 was surely a difficult choice for Black. So, what if Black had played on the outside? (see var)]
;W[kb];B[jc];W[nj];B[oi];W[qq];B[pq];W[rp];B[qr];W[kf];B[le];W[qo];B[rq]
;W[nn];B[on];W[nk];B[no];W[lr]
(;B[gf];W[ff];B[lh];W[pk];B[qj];W[nr];B[mq];W[ms];B[jg];W[if];B[ig];W[hf]
;B[jf];W[gg];B[da];W[pp];B[qm];W[qq];B[rr];W[os];B[nq];W[ps];B[pr];W[ib]
;B[jb];W[ja]
(;B[gn];W[ai];B[ba];W[bd];B[fm];W[el];B[nm];W[jp];B[hp];W[ac];B[ca];W[ie]
;B[je];W[hb];B[id];W[sd];B[sf];W[kh];B[kg];W[fo];B[hq];W[hr];B[fp];W[en]
;B[eo];W[fn];B[qs];W[ls];B[mn];W[nl];B[mm];W[hc];B[gc];W[ol];B[pm];W[aj]
;B[ak]
(;W[go];B[he];W[gf];B[gh];W[hh];B[gj];W[fj];B[hk];W[hj];B[hi];W[fh];B[gj]
;W[fk];B[ih];W[ho];B[io];W[gh];B[gm];W[hj];B[ka];W[la];B[gj];W[an];B[am]
(;W[bp]
C[With the rule set that AG uses being similar to Chinese, it is actually correct for White to avoid fighting a final ko with 240. Assuming Japanese rules, White would have found a one point move. ]
;B[mj];W[ia];B[ic];W[mk];B[ga];W[ka];B[mp];W[ab];B[ao];W[hj];B[ir];W[jr]
;B[ea];W[ki];B[li];W[kk]
C[W+0.25 stones(W+0.5)])
(;W[mj];B[li];W[ml];B[hj];W[bp];B[ao]
C[This is an example of something that can happen with Chinese rules, where the stones are counted. What we call dame points are significat moves worth a stone, In this case, Black can fill dame pts while winning the ko for B+0.75]
))
(;W[hi];B[hj];W[gj];B[hh]
C[W+0.25]))
(;B[ba];W[bd];B[ca];W[ac];B[ai];W[ah];B[aj];W[bh];B[nm]
C[This looks like a half point win for Black. ]))
(;B[ls];W[ks];B[ms];W[mq];B[nr];W[kq];B[gf];W[ff];B[jb];W[lh];B[mh];W[hf]
C[This is also very close. ]))
(;B[nj];W[pf];B[qg];W[qq];B[pq];W[rp];B[rq];W[nd];B[oe];W[of];B[ne];W[nf]
;B[me];W[mf];B[le];W[mh];B[lh];W[ng];B[kg];W[li];B[ki];W[kh]LB[sd:A][bd:B][qr:C]
C[A huge ko in the center. White had a couple of ko threats at A, while Black had a few at B, so White needed some extra at C to make this work. ]
))
(;B[kj];W[mj];B[li];W[mi];B[lh];W[mh];B[lg];W[mg];B[lf];W[hh];B[ih];W[gg]
C[Capturing four White stones loses the game for Black, with White profiting on both sides. ]
))
(;W[eo];B[bp];W[bq];B[en];W[dn];B[ep];W[fo];B[bo]LB[cq:A][bm:B][fp:C]
C[White's aggressive play here does not work, with the triple threat of Black A, B or C. ]
))
(;W[hm];B[kn];W[jo];B[fm];W[gn];B[fn];W[ij];B[hk];W[go];B[fo];W[hp];B[ll]
;W[kk]
C[White's gain in territory was not so big, and Black seems to have some potential to attack in the center. This is about even. ]
))
(;B[jq];W[ir];B[jr];W[jo];B[jp];W[ll]
C[Cutting White off on the side ends with Black getting an eyeless shape, and White has good shapein the center, so this is bad for Black. ]
))
(;B[hq];W[ho];B[hp];W[mm]LB[hq:A][jn:B]
C[While Black covering at A is a natural move, it also serves to demonstrate that White B was played on the correct point. White has good shape in this variation. ]
))
(;W[pm];B[ol];W[qo];B[pp];W[rk];B[rj];W[qj];B[qi];W[qk];B[ri];W[po];B[oo]
;W[om]LB[qo:A][rk:B][hq:C]
C[Important moves in this sequence are White's attachment at A and the kosumi at B. White should have no trouble settling this group, and this seems to be ok for White. One should notice that a positive aspect for Black is that the LR corner has been strengthened, and at some point Black might be able to surround the whole side with a move at C. ]
))
(;W[lq];B[fp];W[gq];B[hq];W[ep];B[ip];W[jq];B[ir];W[ho];B[hp]LB[lq:A][pp:B]
C[White's approach at A aims to attack the shimari with an attachment at B next. ]
))

