(;GM[1]FF[4] SZ[13]KM[7.50] PW[GNU]WR[13k] PB[viking5]PC[The Kiseido Go Server (KGS) at http://kgs.kiseido.com/] DT[2006-02-05] EV[Eleventh KGS Computer Go Tournament - Formal division]RE[W+Resign] TM[1080]RU[Chinese] C[viking5 [?\]: GTP Engine for viking5 (black): Viking version 5.3.1 GNU [13k\]: GTP Engine for GNU (white): GNU Go version 3.7.8 ] CA[UTF-8]RO[4] ;B[ik];W[kj];B[id];W[ek];B[ed];W[ji];B[gk];W[ei];B[jg];W[hi];B[kl] ;W[kd];B[je];W[ke];B[ef];W[dh];B[kf];W[lf];B[lg];W[le];B[hj];W[hh] C[zapp [?\]: Since Viking only searches 1 ply on 13x13 it appears to vervalue sente moves ] ;B[gg];W[cf];B[jc] C[burtabel [3d\]: well GNU Go only "searches" 1 ply too ];W[kc] C[burtabel [3d\]: but has a lot of special code to guess the value of (reverse) sente moves zapp [?\]: On 9x9 however viking searches 2-4 ply depending on position and stage of the game ] ;B[kb];W[lb];B[jb];W[la];B[de];W[ij];B[gi];W[gh];B[fh];W[fi];B[ce] ;W[bf];B[eg];W[gj];B[hk]C[zapp [?\]: Another bad sente move ];W[ac] C[gunnar [?\]: GNU says B+6. ];B[cc];W[hg] C[burtabel [3d\]: I think W is leading gunnar [?\]: Now B+0.10. ] ;B[fl];W[el]C[zapp [?\]: Viking thinks white is ahead ];B[li];W[lj] ;B[hf]C[gunnar [?\]: GNU agrees now. W+3. ];W[fk];B[gm];W[jk] C[burtabel [3d\]: well of course W should have gotten F2 ];B[jl] ;W[eh];B[lk];W[kk];B[mk];W[em];B[fg];W[mj];B[lm];W[kh];B[ih];W[kg] ;B[jf];W[jh];B[ig];W[ii];B[dg];W[cg] C[zapp [?\]: Now viking is starting to get desperate gunnar [?\]: Viking blundered away some points and now the C7 cut aji is gone. ] ;B[bh];W[ch]C[zapp [?\]: Yes, it is to weak tactically in the endgame zapp [?\]: I need to use time more efficient burtabel [3d\]: before that GNU Go played some negative moves.. (K3, E6) ] ;B[be];W[ae];B[ck];W[bi];B[bj];W[ah];B[bl];W[ak] C[trogdor [-\]: zapp: tried splitting vikings simulations to several computers? ] ;B[aj];W[cl];B[bm];W[al];B[dl];W[dk] C[zapp [?\]: This is a thought that is in my mind ];B[cm] C[zapp [?\]: But right now I only have my laptop ];W[dm] C[burtabel [3d\]: easier thought than done.. ];B[jd] C[trogdor [-\]: well, for montecarlo it should be easy. ];W[bb] C[zapp [?\]: But a multicore stationary PC is on the wishlist ];B[cb] ;W[ba];B[bd] C[zapp [?\]: Actually viking code might be unusually easy to parallelize ] ;W[ad];B[ml];W[ca];B[db];W[da] C[zapp [?\]: Ok, gnu is still the king :-) burtabel [3d\]: well Black had a chance in lower left burtabel [3d\]: d2 instead of b1 lives? gunnar [?\]: No. zapp [?\]: If C5 is sent? gunnar [?\]: It's not. burtabel [3d\]: how can White kill? burtabel [3d\]: after D2? gunnar [?\]: Down to C1. burtabel [3d\]: then Black B1 and A2 zapp [?\]: I need to enter my bathtub quickly zapp [?\]: see you gunnar [?\]: Uh, yeah, I was thinking false eye when it wasn't. gunnar [?\]: So C2 should have been C1? ] )