(;FF[4]
CA[UTF-8]
GM[1]
DT[2019-07-09]
GN[Friendly Match]
PC[https://online-go.com/review/411240]
PB[mft0]
PW[fishku]
BR[9k]
WR[2k]
TM[0]OT[0 none]
RE[W+41.5]
SZ[19]
KM[0.5]
RU[Japanese]
HA[8]
AB[jd][jp][dj][pj][dd][pp][pd][dp]

;W[qf]
;B[rd]
;W[nc]
;B[oc]
;W[nd]
;B[pf]
;W[qc]
;B[rc]
(;W[qd]C[R16 was bad, r15 is very effective at starving me of liberties.]
;B[qe]
;W[fc]
;B[dc]
;W[cf]
;B[ch]
;W[ef]
;B[be]
;W[ce]
(;B[cd]
;W[bf]
;B[ae]
;W[cn]
;B[cp]
;W[cl]
;B[dn]
;W[dm]
;B[em]
;W[el]
;B[fm]
;W[qq]
;B[qp]
;W[pq]
;B[oq]
;W[or]
;B[nr]
;W[nq]
;B[op]
;W[mr]
(;B[mq]
;W[ns]
;B[np]
;W[nr]
;B[lq]
;W[fj]
(;B[bj]
;W[fh]
;B[dh]
;W[fe]
;B[bg]
;W[af]
;B[cg]
;W[bk]
(;B[bd]
;W[bi]
;B[fk]
;W[ek]
;B[fl]
;W[ej]
;B[ee]C[A subtle but aggressive move. Pretty nice.]
(;W[df]
;B[gj]
;W[gi]
;B[hj]
;W[ni]
;B[ph]
;W[hq]
;B[hp]
;W[ip]
;B[io]
;W[iq]
;B[lr]
;W[gp]
;B[ho]
;W[ep]
;B[do]
;W[eq]
;B[dq]
;W[er]
;B[dr]
;W[jq]
;B[kp]C[Good defense so far.]
;W[jl]
;B[ll]
;W[kj]
;B[mg]C[White is quite desperate.]
;W[og]
(;B[of]C[Strong response.]
;W[nf]
;B[ng]
;W[oe]
;B[pe]
;W[ke]
;B[mf]
;W[ld]
;B[ig]
;W[ie]
;B[jf]
;W[je]
;B[kd]
;W[me]
(;B[lf]
;W[oh]
;B[le]
;W[lc]
;B[he]C[Another good attack move.]
;W[hd]
;B[id]
;W[hf]
;B[ge]
;W[gd]
;B[if]
;W[gf]
;B[he]
;W[ge]
;B[kf]
;W[he]C[Good technique.]
;B[ne]
;W[od]
;B[md]
;W[mc]
;B[kc]
;W[kb]
;B[ic]
;W[ib]
;B[nb]
;W[hc]
;B[mb]
;W[lb]
;B[ob]
;W[ii]
;B[hi]
;W[hh]
;B[ih]
;W[hl]
(;B[hm]
;W[ij]
;B[ik]
;W[jk]
;B[ji]
;W[jj]
;B[il]
;W[gk]
(;B[jm]
;W[mj]
(;B[nh]
;W[oi]
;B[im]
;W[hk]
;B[ki]
;W[eb]
;B[db]
;W[bo]
;B[fo]
;W[fp]
;B[bp]
;W[rq]
;B[rp]
;W[nk]
(;B[ol]TR[ph]TR[pj]TR[ll]TR[ol]C[Black's "net" is very thin here (many cutting points), so it's easy for white to go in further.

It's easier for black to draw the net back a bit, but to make it stronger.]
;W[ok]
;B[pi]
;W[nl]
;B[nm]
;W[mm]
;B[nn]
;W[lm]
;B[ln]
;W[km]
;B[kn]
;W[pk]
;B[pl]
;W[qk]
;B[qj]
;W[ql]
;B[qm]
;W[rm]
;B[qn]C[White got in quite deep, black lost many points.]
;W[pg]
;B[qg]
;W[kr]
;B[ks]
;W[js]
;B[ls]
;W[ds]
;B[cs]
;W[es]
;B[br]
;W[da]
;B[ca]
;W[ea]
;B[bb]
;W[rj]
;B[ri]
;W[rk]
;B[si]
;W[rn]
;B[ro]
;W[go]
;B[gn]
;W[eo]
;B[fn]
;W[mn]
;B[mo]
;W[li]
;B[lh]
;W[oj]
;B[rf]
;W[sj]
;B[ec]C[Careful in the endgame when liberties are filled!]
(;W[fb]
;B[ms]
;W[qr]
;B[la]
;W[ka]
;B[ma]
;W[me]
;B[nf]
;W[co]
;B[ao]
;W[bm]
;B[sn]
;W[sm]
;B[so]
;W[an]
;B[ap]
;W[kq]
;B[sq]
;W[sr]
;B[sp]
;W[hg]
;B[gl]
;W[mi]
;B[mh]
;W[md]
;B[de]
;W[sk]C[I tried to "talk through the board", to make you pay attention to r12. ;)]
;B[]
;W[qh]
;B[rh]
;W[qi]
;B[]
;W[]
)(;W[qh]
;B[qi]
;W[rh]
;B[sh]
;W[sg]
))(;B[pl]
;W[nm]
;B[mn]
;W[pi]
;B[qi]
;W[pg]
;B[qh]
;W[qg]
;B[on]
))(;B[oi]
;W[oj]
;B[pi]
;W[nh]
;B[ok]
;W[nj]
;B[nl]C[Better shape.]
))(;B[mj]TR[og]TR[oh]SQ[ii]TR[ni]SQ[ij]SQ[jj]SQ[kj]SQ[gk]SQ[jk]SQ[hl]SQ[jl]C[Now that white lives inside (squares), it's very big to cut off the rest of white's group (triangles).]
))(;B[gk]C[Black can afford to play things super safe here. White mustn't live!!]
))(;B[oh]TR[jf]TR[mf]TR[ig]TR[mg]TR[ng]C[Black needs to keep the marked group connected for maximum safety.]
))(;B[pg]C[Safe response.]
))(;W[ff]
;B[df]C[White's immediate instinct fails horribly]
))(;B[bi]C[I think black can live here, but needs to play another move at least.]
;W[ah]
;B[ag]
;W[cj]
;B[dk]
;W[ck]
;B[dl]
;W[cm]
;B[ek]
;W[fl]
;B[fk]
;W[gl]
;B[di]
;W[gk]
;B[gj]
;W[gi]
;B[hj]
;W[il]C[A long fight starts.]
))(;B[fh]C[Black needs to get out!]
))(;B[pr]
;W[ns]
;B[qr]C[Black usually takes the corner like this, after sacrificing o2. Very common sequence.]
))(;B[bd]
;W[cd]
;B[cc]
;W[bf]C[Better shape for b.]
))(;W[qb]
;B[ob]
;W[qd]
;B[qe]
;W[re]
;B[pe]
;W[rf]
;B[rb]
;W[qh]C[Maybe something like this would have been better (for w).]
))