(;GM[1]FF[4]CA[UTF-8]AP[CGoban:3]ST[2]
RU[Japanese]SZ[19]KM[6.50]TM[60]
PW[Ding Shixiong]PB[Magist]WR[3p]BR[9p]RO[03]PC[Tygem]C[Highlights

This game is all about the early game. B ends up 20 points ahead.

9, 13 When the surroundings are slightly different, Master plays differently. With less support for a fight, it takes territory instead of building a wall to attack. !

24 - 44 Master ignores protecting the cut, and just lives. This new variation shows amazing success. !!!!

47-65 Master can play viciously at times too, threatening to kill W and not protecting its own weakness first. Eventually getting 4 moves on the outside via ko! !!!

94 - W manages to live here! But most of the other group dies ... !!

end B lead 18.5]RE[B+Resign]TC[3]TT[20]
;B[pd]
;W[pp]
;B[dc]
;W[cp]
;B[cf]
(;W[jc]C[interesting to see what B's response is too this more calm play]
;B[eq]
;W[iq]C[humans love this pincer, but I haven't ever noticed Master play it ...

though partially that is as Master's 3-4s are a little rare as W]
(;B[do]C[so B decides to just settle the shape locally rather than aim at a global attack. This may become a more territorial game]
;W[co]
;B[dn]
;W[cm]
(;B[nq]
(;W[oq]
;B[np]
;W[pn]
;B[kq]
;W[io]
;B[ko]
;W[fo]C[standard shape, several pro games]
;B[gq]
;W[gp]
(;B[hq]
;W[hp]
;B[ir]
;W[hr]C[good tesuji to know]
(;B[gr]
;W[jr]
;B[hs]
;W[jq]
;B[ql]
;W[dp]C[But Master thinks this cut doesn't need protecting, and B still has the aji of C2, and lots of aji with with 2 stones whether to sacrifice of run (D9, D7)]
;B[ep]
;W[eo]
;B[km]C[still aiming to run with D6. The cut with D5 is considered valuable as the W group isn't solid, and K2 hurts the L3 group quite a lot, as L1 is still half sente on the lower left group.]
(;W[rn]
;B[dm]
;W[dl]
(;B[fm]
;W[cn]
;B[el]
;W[dk]
;B[hm]C[this looks pretty scary, though B's shape is so terrible]
;W[im]
;B[il]
;W[hl]
(;B[gm]C[aggression!


this suggests that]
(;W[jm]
;B[jl]
;W[jo]
(;B[kn]C[I find this whole variation very confusing

But B's play is very tough here (unrelenting), playing severely, not protecting it's weaknesses so much as attacking W's]
;W[hk]C[but this looks very dangerous]
;B[ej]
;W[dr]C[W now can get this as W is solid at C6]
;B[er]
;W[kl]
;B[ij]
;W[hj]
;B[jj]
;W[hi]
;B[fi]
;W[ll]
;B[jh]
;W[js]
(;B[kp]C[!!!

So tough again, directly threatening to kill W outright with the ko]
;W[is]
;B[fp]
(;W[go]C[necessary]
;B[fs]C[ko]
;W[hr]
;B[om]C[but it is so heavy for W, W cannot afford to die. B is saying that after W has gotten heavy with all the cuts outside, not the outside is very valuable, but W cannot respond]
;W[gs]
;B[ih]C[now the cuts with L8 look misplaced as they are starting a fight where B has 2 extra moves. But W successfully killed B

...
ish

it still seems to be ko!]
(;W[pm]
;B[hs]
;W[lr]
;B[or]
;W[pr]
;B[op]
;W[pq]
;B[ol]
;W[lq]
;B[on]
;W[nr]
;B[mr]
;W[os]C[W is now alive, but B still only half dead now (ko for life, with so many threats after C2), and B has gotten 2 extra moves on the outside

in total, B gets 4 (maybe better to count 3, ignore P6 as M3 is valuable) extra moves on the outside, W connects on the 1st line, and B is still not dead at F1. This sounds like it must be a complete disaster for W.

though it actually feels unclear to me, leela says it is 60-40 here.]
;B[hc]C[W has about 25 points, and an extra 30 points ish if E2 dies. B has the rest of the board as potential at the moment, though very little solid territory]
;W[mc]
;B[oc]
(;W[me]C[W has a hard time reducing both of B's areas while still staying alive]
;B[ld]
;W[lc]
;B[jd]C[great shape to kill H11]
(;W[dg]C[But W has a tricksy plan to enter here


but this is such an overplay]
;B[ci]
;W[cg]
;B[bf]
;W[df]
;B[bg]
;W[dd]
;B[ed]
;W[ee]
;B[cd]
;W[fd]
;B[de]
;W[ec]
;B[dd]
;W[hh]
;B[if]
;W[hf]
;B[he]
;W[ge]
;B[hg]
;W[gf]
;B[gg]
;W[fg]
;B[fh]
;W[hd]
;B[ic]
;W[ie]
;B[je]
;W[jf]
;B[ig]
;W[id]C[it's impressive how W lived inside, but W remains far behind as the other group is in trouble]
;B[gc]
(;W[gd]
;B[kc]
;W[jb]
;B[kb]C[W can resign here]
;W[kf]
;B[mh]
;W[ng]
;B[nh]
;W[pg]
;B[oh]
;W[qe]
;B[qd]
;W[fc]
;B[ib]
;W[pe]
;B[oe]
;W[of]
;B[ne]
;W[nf]
;B[md]
;W[le]
;B[kd]
;W[qi]
;B[pj]
;W[qj]
;B[qk]C[B+R

As usual, I give my estimate of the score B+18.5. This time this is very accurate, and only slightly favourable for W.]
;W[ir]
;B[eg]
(;W[ff]
;B[eh]
;W[ef]
;B[re]
;W[rf]
;B[rd]
;W[rg]
;B[bk]
;W[bl]
;B[ck]
;W[cl]
;B[mq]
;W[ms]
;B[kr]
;W[ks]
;B[lg]
;W[mf]
;B[rm]
;W[pi]
;B[oj]
;W[lp]
;B[lo]
;W[sm]
;B[sl]
;W[sn]
;B[rj]
;W[ri]
;B[ph]
;W[qh]
;B[jp]
;W[ip]
;B[mp]
;W[cj]
;B[bj]
;W[dj]
;B[di]
;W[ek]
;B[fk]
;W[eb]
;B[db]
;W[da]
;B[ca]
;W[ea]
;B[cb]
;W[ls]
;B[pl]
;W[oo]
;B[no]
;W[po]
;B[mn]
;W[qm]
;B[rl]
;W[sj]
;B[rk]
;W[oi]
;B[ni]
;W[kg]
;B[kh]
;W[ak]
;B[bi]
;W[ch]
;B[bh]
;W[gb]
;B[hb]
;W[ha]
;B[ja]
;W[se]
;B[sd]
;W[sf]
;B[aj]
;W[al]
;B[jn]
;W[in]
;B[hn]
;W[mg]
;B[sk]
;W[si]
;B[fl]
;W[ns]
;B[em])
(;W[ef]C[if only this was possible]
;B[ff]
;W[db]
;B[cb]
(;W[gb]
;B[eb])
(;W[ea]
;B[fb])))
(;W[ke]
;B[kd]
;W[kc]
;B[gd]
;W[he]
(;B[fc]
;W[md]
;B[ff]
;W[le]
;B[fe]C[B is satisfied with this exchange, though it looks better for W than the game])
(;B[ff]C[I guess this is the real problem though]
;W[fe]
;B[fc]
;W[ef]
;B[le]C[this is the real issue]
;W[lf]
;B[kf]
;W[md]
;B[jg]
;W[di]
(;B[dh]
;W[ch]
;B[eh]
;W[bi])
(;B[dj]
;W[eh]C[W lives painfully]
;B[nb]C[and this group?]))))
(;W[ci]C[this would be so much better]
;B[dh]C[aim at aji on the right and the corner, and hope for sente to kill the E2 stones. B's lead isn't so clear here.]
;W[qf]))
(;W[je]
;B[me]))
(;W[ss]
;B[hs]
;W[ir]
;B[jp]
;W[ip]
;B[jn]
;W[in]
;B[cr]
;W[dq]
;B[ds]
(;W[br]
;B[bq]C[ko]
(;W[bs]
;B[cq]
;W[cs]
;B[ar])
(;W[cq]
;B[bs]))
(;W[bq]
;B[br]
;W[ar]
;B[kr]
;W[bs]
;B[ks]
;W[cq]
;B[hn]
;W[cs]
;B[en]
;W[es]
;B[fn]
;W[ds]
;B[gn]
;W[gs]C[ko])))
(;W[fs]
;B[fr]
;W[es]
;B[dq]
;W[cr]
;B[gs]
;W[cq]
;B[ds]
;W[es]
;B[go]
;W[gn]
;B[jp]
;W[ip]
;B[fn]
;W[ho]
;B[en]
;W[go]
;B[jn]
;W[in]
;B[kr]C[W totally dead by 2 liberties]))
(;B[is]
(;W[lq]
;B[kp]
;W[lr]
;B[nr]
;W[mo])
(;W[kp]
;B[lp]
;W[jp]
;B[lq]
;W[jn]
;B[mn]
;W[hn])))
(;B[kl]C[for example, why not here?]
(;W[kn]
;B[ln]
;W[kp]
;B[jn]
;W[lq])
(;W[kp]
;B[lp]
;W[kn]
;B[jp]
;W[ln]C[it must be because of this])))
(;W[jl]
;B[in]C[B is daring W to get a ponnuki]
;W[ik]
;B[jm]C[the W group should still be able to live, but at what cost?]))
(;B[gl]
;W[jl]C[W is asking to get out]
;B[hk]
;W[jm]C[B is unsettled on both sides, though this is still a variation to consider]))
(;B[el]
;W[em]C[cut works]
;B[cl]
;W[dk]
;B[cn]
;W[bm])
(;B[cn]
;W[bn]
;B[bm]
;W[cl]
;B[bo]
;W[an]C[tombstone]
;B[am]
;W[em]
;B[ao]
;W[bn]
;B[an]
;W[en]
(;B[bn]
;W[bp]
;B[bk]
;W[bl]
;B[al]
(;W[cj]
(;B[bj]
;W[ap]
;B[ak]
;W[bi])
(;B[bi]
;W[bj]
;B[aj]
;W[ck]
;B[ak]
;W[ch]
;B[bg]
;W[bh]
;B[ah]
;W[ci]
;B[ai]
;W[ap]
;B[ag]))
(;W[ck]C[this seems to be the way to kill]
;B[bj]
;W[ci]
;B[bh]
;W[ap]
;B[ak]
;W[bi]))
(;B[bj]
;W[bn]C[B does get profit too though])))
(;W[il]C[But where should W protect?]
;B[dk]
;W[dm]C[W territory is quite little - too many moves to capture these two stones?]
;B[qq]))
(;B[jq]C[hard to accept this variation]
;W[fq]
;B[ip]
;W[gr]
;B[iq]
;W[er]))
(;B[fp]C[but waltheri puts this as the human variation]
;W[go]
;B[dp]C[emphasising connecting everything]
;W[cq]
;B[hq]
;W[fr]
;B[fq]
;W[ip]
;B[dm]))
(;W[lq]C[If B played the huge wall variation with D6 directly on the left, B would be scared of a pincer here as the wall would have less purpose, and W's territory on the left would look good]))
(;B[kq]C[B doesn't have such a big wall, so this is less appropriate]
;W[mq]C[B is scared of W taking the more important territory]))
(;B[dn]C[B would be more ambitious if W exchanged O17 for R14. That is Master's most common opening]))
(;W[nc]C[we normally see active play from both humans and master]
;B[qf]
;W[jc]C[at this point B then can play more aggressively at the bottom with the help of R14, so why does W not normally play K17 directly?]))