(;GM[1]FF[4]CA[UTF-8]AP[CGoban:3]ST[2]
RU[Japanese]SZ[19]KM[-6.50]TM[3600]OT[5x30 byo-yomi]
GN[Jubango #7]PW[jlt]PB[Ian Butler]WR[5k]BR[7k]DT[2019-12-07]PC[OGS: https://online-go.com/game/20740142]RE[W+41.50]
;B[qd]
;W[dd]
;B[cq]
;W[pp]
;B[fc]
;W[oc]
;B[qg]
;W[lc]
;B[pc]
;W[od]
;B[jc]
;W[hc]
(;B[id]C[This is the first significant mistake by Black. See variation.]
;W[hd]
(;B[jf]C[See variation.]
;W[fd]
;B[le]
;W[qe]
;B[re]
;W[pe]
(;B[qf]LB[rd:A][rf:B]C[Bad shape because of the cutting points at A and B. See variation.]
;W[og]
;B[ne]
;W[pf]
;B[cf]
;W[ce]
;B[df]
;W[gf]
;B[dj]
;W[qh]
;B[pb]LB[rd:A][rf:B]C[Big mistake. White will exploit the cutting points A and B.]
(;W[rf]C[Actually White should have used the other cut.]
;B[rg]
;W[rd]
;B[sf]
;W[qc]
;B[pd]
;W[rc]
;B[qb]
;W[rb]C[This doesn't work. See variation.]
(;B[rh]
;W[mc]
(;B[qi]C[Slow. See variation.]
;W[mg]
;B[jh]
;W[kd]
;B[ke]
;W[jd]
;B[nq]
;W[lq]
;B[qn]
;W[np]
;B[oq]
;W[op]
;B[pq]
;W[qq]
;B[qr]
;W[qp]
(;B[rr]C[See variation.]
;W[fp]LB[mq:A]C[But since Black didn't play A, White should have played there.]
;B[cn]
;W[hh]
;B[ch]
;W[ij]
;B[jj]
;W[jk]
;B[kj]
;W[ii]
;B[lh]
;W[mh]
;B[kk]
;W[ik]
;B[nk]
;W[pk]
;B[oj]
;W[pm]
;B[rn]
;W[rq]
;B[ql]
;W[mq]
;B[mr]
;W[lr]
;B[or]
;W[pn]
;B[rk]
;W[dq]
;B[dp]
;W[eq]
;B[cr]
;W[ms]
;B[ps]
;W[sr]
;B[rs]
;W[fm]
;B[kn]
;W[kp]
;B[dl]C[jlt: phone call
Ian Butler: ok
]
;W[io]
;B[pl]
;W[be]
;B[ie]
;W[ic]
;B[ld]
;W[kc]
;B[oh]
;W[ng]
;B[bf]
;W[dr]
;B[ae]
;W[ad]
;B[af]
;W[bc]
;B[jo]
;W[jp]
;B[in]
;W[ho]
;B[jm]
;W[mm]
;B[fg]
;W[gg]
;B[hn]
;W[gn]
;B[ns]
;W[nr]
;B[os]
;W[ln]
;B[ll]
;W[fh]
;B[ff]
;W[fe]
;B[he]
;W[ge]
;B[ds]
;W[es]
;B[cs]
;W[eh]
;B[dg]
;W[fj]
;B[de]
;W[cd]
;B[ep]
;W[fq]
;B[ek]
;W[fk]
;B[sd]
;W[ob]
;B[sc]
;W[qa]
;B[sb]
;W[pa]
;B[gl]
;W[gk]
;B[fl]
;W[eo]
;B[do]
;W[en]
;B[nl]
;W[nm]
;B[mi]
;W[ni]
;B[mj]
;W[oi]
;B[pi]
;W[dn]
;B[cm]
;W[ko]
;B[jn]
;W[ro]
;B[em]
;W[go]
;B[gm]
;W[fn]
;B[nd]
;W[rm]
;B[qm]
;W[sn]
;B[rl]
;W[sm]
;B[sl]
;W[so]
;B[qo]
;W[po]
;B[ss]
;W[sq]
;B[nc]
;W[nb]
;B[ee]
;W[ed]
;B[lm]
;W[lg]
;B[kg]
;W[hl]
;B[mn]
;W[lo]
;B[om]
;W[on]
;B[ol]
;W[nn]
;B[di]
;W[ml]
;B[mk]
;W[cp]
;B[co]
;W[bp]
;B[bq]
;W[hm]
;B[el]
;W[jl]
;B[ei]
;W[fi]
;B[ph]
;W[nh]
;B[ig]
;W[ji]
;B[ki]
;W[im]
;B[km]
;W[kl]
;B[lk]
;W[hf]
;B[mr]
;W[ls]
;B[if]
;W[eg]
;B[ef]
;W[dm]
;B[ih]
;W[lf]
;B[of]
;W[pg]
;B[nr]
;W[oe]
;B[nf]
;W[md]
;B[me]
;W[kf]
;B[dh]
;W[je]
;B[nj]
;W[ej]
;B[]
;W[])
(;B[mq]C[Katago insists many times that Black should play this move.]
;W[mp]
;B[lr]
;W[kq]
;B[kr]))
(;B[cc]
;W[dc]
;B[be]
;W[cd]
;B[bd]
;W[bc]C[Black keeps sente.]))
(;B[ob]
;W[nb]
;B[nc]
;W[nd]
;B[mc]
;W[mb]
;B[md]
;W[oe]
;B[pg]
;W[of]
;B[oh]
;W[ld]
;B[me]
;W[ng]
;B[ra]
;W[sb]
;B[na]
;W[lb]
;B[sd]TR[rb][sb][qc][rc][rd]C[Two hanes give an extra liberty. The triangled stones are dead, and White has almost lost the game.]))
(;W[rd]
(;B[rc]
;W[rf]
;B[sd]
;W[rg]C[Now White is strong and Black's corner is surrounded.])
(;B[rf]C[Black can't connec this way because...]
;W[rc]TR[pb][pc][qd]C[This move kills Black's triangled stones.])))
(;B[rf]))
(;B[ee]
;W[he]
;B[de]
;W[cd]
;B[ce]
;W[ed]
;B[fd]
;W[fe]
;B[bd]
;W[bc]
;B[be]
;W[eb]
;B[bb]
;W[cc]
;B[ac]
;W[fb]
;B[ff]
;W[ge]
;B[ci]TR[jc][id]C[The triangled stones were hurt, but in exchange Black is strong on the top left and White doesn't have many points.]))
(;B[fe]LB[he:B][df:A]C[This move forces White to choose between A and B]
(;W[df]
;B[id]C[Now this move is much more severe.]
;W[hd]
;B[he]
;W[ie]
;B[je]
;W[if]
;B[hf]
;W[ig]
;B[kf])
(;W[he]
;B[df]C[White's corner is surrounded.])))