(;GM[1]FF[4]CA[UTF-8]AP[CGoban:3]ST[2]
RU[Chinese]SZ[19]KM[7.50]TM[7200]OT[3x60 byo-yomi]
PW[AlphaGo]PB[Lee Sedol]BR[9d]DT[2016-03-09]EV[Google DeepMind Challenge Match]RO[Game 1]PC[Seoul, Korea]WT[Computer]BT[Human]SO[https://gogameguru.com/]RE[W+Resign]
;B[qd]
;W[dd]
;B[pq]
;W[dp]
;B[fc]
;W[cf]
;B[ql]C[Lee Sedol is testing the computer.]
;W[od]
;B[ld]
(;W[qc]C[R17 is a good move under current circumstance, normally it is regarded as a bad move.]
;B[rc]
;W[pc]
;B[re]
;W[of]
;B[pg]
;W[og]
;B[ph]TR[ql]C[White chose a simple variation, making the stone R8 inefficient. ]
;W[id]C[Up to here, white has the initiative.]
;B[lf]
;W[oh]
;B[pi]
;W[lh]
;B[kh]
;W[ke]
;B[le]
;W[lg]C[White asks for a complicated fight, it shows AlphaGo's calculation power.]
(;B[kg]C[Black responds with a fight, however, questionable.]
;W[kf]
;B[ne]
;W[oe]
;B[jc]
;W[ic]
;B[jd]
;W[ie]
;B[je]
;W[jf]
;B[if]
;W[jg]
;B[li]
;W[mi]
;B[hf]
;W[ih]C[Good shape for white, it already seems difficult for black.]
;B[mb]
;W[gd]
;B[ki]
;W[mj]
;B[kk]
;W[ib]
;B[ob]
;W[ml]
;B[lm]
;W[nc]
;B[nb]
;W[kb]
;B[lc]
;W[mm]
;B[ln]
;W[kl]C[AlphaGo employs the same technique as human to settle its shape.]
;B[ll]
;W[lk]
;B[jj]
;W[jl]
;B[hj]
;W[hi]
;B[gj]
;W[gf]
;B[ii]
;W[jh]
;B[ij]
;W[mn]
;B[lo]
;W[mo]
;B[lp]
;W[mp]
;B[lq]
;W[mq]
;B[im]C[After the opening, white is leading slightly.]
;W[qo]
;B[fq]
;W[gg]C[A calm move.]
;B[cn]
;W[dn]
;B[dm]
;W[fp]
;B[gp]
;W[gq]C[This was very creative of AlphaGo.]
;B[fr]
;W[co]
;B[en]
;W[do]
;B[ep]
;W[cm]
;B[dl]C[Locally, black gained a lot. But globally, white has a plan...]
;W[lr]
;B[kr]
;W[rb]
;B[jb]
;W[ja]
;B[mf]
;W[mh]
;B[nd]
;W[qj]C[An impressive move! R10 explains white's idea and a series of moves from the lower left corner.]
;B[pj]
;W[qk]
;B[pl]
;W[pk]
;B[ok]
;W[rh]C[No mistake locally.]
;B[rl]
;W[qf]
;B[ri]
;W[rf]
;B[pf]
;W[qe]
;B[qh]
;W[cc]C[Seeing this move, white has already won according to Alphago's calculation.]
;B[bn]
;W[bm]
;B[bl]
;W[bo]
;B[rg]
;W[mr]
(;B[po]
;W[jr]
;B[kq]
;W[pn]
;B[oo]
;W[qp]
;B[on]
;W[pp]C[White did not seem to develop the concept of leaving ajis behind, this move is not benefitial for white.]
;B[op]
;W[qq]
;B[or]
;W[pr]
;B[oq]
(;W[pd]C[White lost 1 point here.]
;B[qr]
;W[rr]
;B[ps]
;W[rs]
;B[rn]
(;W[ro]C[The block lost 2 points.]
;B[qn]
;W[so]
;B[cl]
;W[an]
;B[ks]
;W[om]
;B[ol]
;W[ci]C[White still wins.]
;B[hh]
;W[hg]
;B[dr]
;W[dj]
;B[bq]
;W[cq]
;B[cr]
;W[bp]
;B[dq]
;W[br]
;B[cp]
;W[ap]C[A simple choice, avoiding ko.]
;B[ek]
;W[fi]
;B[bj]
;W[bi]
;B[pb]
;W[qb]
;B[sf]
;W[rd]
;B[ai]
;W[ah]
;B[aj]
;W[bh]
;B[gi]
;W[fj]
;B[fk]
;W[oc]
;B[mc]
;W[cj]
;B[al]
;W[nm]
;B[pm]
;W[aq]
;B[gh]
;W[fh]C[It can be said that black lost without a chance in this game. Lee Sedol seemed have underestimated AlphaGo in the 1st game.])
(;W[sp]C[The correct response.]))
(;W[se]C[Better.]))
(;B[qp]C[Better response for black. It would have brought the game closer, but would still be difficult for black to find a chance.]))
(;B[kf]C[A choice.]))
(;W[pg]
;B[oe]
;W[ne]
;B[of]
;W[pd]
;B[qf]
;W[qc]
;B[qe]TR[ql]C[R8 would have ended up at the perfect position if white had chosen the common joseki.]))
