[gnugo-devel] attack (dead group) vs disconnect

[max-d]

here (see the sgf file below) are some questions i have asked to gnugo
3.3.19 after white played
194 = G9
(the questions follow the GG's answer)
i dont think black could escape but I always can escape playing black g10
then f8

= 0(*connect G11 J6*)
seems right

= 0(*owl_does_defend G10 G11*)
seems right

195 gnugo-3.3.19: = F9
= F9 92.53 H8 4.95 H7 4.82 K7 4.78 K8 4.58 J8 4.43 G10 2.62 G5 1.14 P14 1.07
H4 0.96 (*top_moves*)

195
= (*undo*)
undo the f9 move

195 Player: G10 (i play g10)

196 gnugo-3.3.19: = F9
seems bad !!

= 1 J8(*connect J9 J6*)
seems right

195
= (*undo*)
undo the f9 move

= 1 J8(*disconnect J9 J6*)
seems logical

= 1 F9(*owl_attack  J9*)
still bad

come back to 194 = G9

= (*undo*)
= (*undo*)

= 1 F9(*owl_attack  G11*)

= 1 J8(*disconnect J10 J6*)
seems right,.


If we edit the position

195 Player: bG10
196 Player: bE14
= 1 F9(*owl_attack  G10*)
197 Player: wJ8
= 1 F9(*owl_attack  G10*)
not enough yet

198 Player: wH8
= 1 PASS(*owl_attack  G10*)

well !!
md

the sgf file ...

Game 12*
Size 19
Black = gnugo-3.3.19 White = gnugo3_3_16
Level black = 10 Level white = 10
Time black = 213,9 Time white = 212,5
Score = = W+65.5 (upper bound: 65.5, lower: 65.5)

(
;B[pd]
;W[dd]
;B[qp]
;W[dp]
;B[kq]
;W[qj]
;B[qg]
;W[qm]
;B[fq]
;W[dn]
;B[dr]
;W[hq]
;B[cq]
;W[eq]
;B[er]
;W[fp]
;B[bn]
;W[op]
;B[fd]
;W[qq]
;B[rq]
;W[df]
;B[dc]
;W[cc]
;B[ec]
;W[cb]
;B[jc]
;W[cj]
;B[pq]
;W[nd]
;B[ff]
;W[oc]
;B[pc]
;W[nf]
;B[eh]
;W[ke]
;B[nh]
;W[lc]
;B[db]
;W[cp]
;B[bp]
;W[gq]
;B[je]
;W[fr]
;B[jf]
;W[dh]
;B[fj]
;W[mp]
;B[ko]
;W[dq]
;B[cr]
;W[dl]
;B[mr]
;W[rh]
;B[qf]
;W[kb]
;B[nq]
;W[ib]
;B[bl]
;W[ic]
;B[id]
;W[di]
;B[np]
;W[lg]
;B[mo]
;W[ki]
;B[eg]
;W[dg]
;B[hh]
;W[ob]
;B[pb]
;W[mi]
;B[og]
;W[gc]
;B[rg]
;W[jh]
;B[gd]
;W[sh]
;B[po]
;W[pa]
;B[qh]
;W[ra]
;B[ri]
;W[rj]
;B[si]
;W[sj]
;B[qi]
;W[rc]
;B[pj]
;W[pk]
;B[oj]
;W[jr]
;B[rn]
;W[rm]
;B[sm]
;W[sl]
;B[sn]
;W[qn]
;B[ro]
;W[kr]
;B[ip]
;W[bk]
;B[co]
;W[fm]
;B[hj]
;W[kd]
;B[jd]
;W[kk]
;B[ok]
;W[pl]
;B[rk]
;W[mk]
;B[nl]
;W[lm]
;B[mm]
;W[al]
;B[am]
;W[ak]
;B[jb]
;W[ja]
;B[in]
;W[ml]
;B[ln]
;W[km]
;B[nm]
;W[iq]
;B[jq]
;W[ig]
;B[lr]
;W[hg]
;B[ks]
;W[gg]
;B[gh]
;W[is]
;B[fg]
;W[re]
;B[ni]
;W[cm]
;B[bm]
;W[fb]
;B[ca]
;W[ed]
;B[fc]
;W[hc]
;B[ee]
;W[de]
;B[bb]
;W[bc]
;B[eb]
;W[ga]
;B[qe]
;W[ab]
;B[rd]
;W[sd]
;B[ba]
;W[qd]
;B[qb]
;W[qa]
;B[rb]
;W[sb]
;B[oe]
;W[ne]
;B[rf]
;W[qc]
;B[cn]
;W[cl]
;B[do]
;W[eo]
;B[ei]
;W[mh]
;B[dj]
;W[ek]
;B[ej]
;W[kf]
;B[mj]
;W[hd]
;B[he]
;W[jg]
;B[hf]
;W[lj]
;B[nj]
;W[gf]
;B[ge]
;W[od]
;B[pe]
;W[ii]
;B[ij]
;W[jj]
;B[ik]
;W[if]
;B[ie]
;W[hi]
;B[gi]
;W[gk]
;B[fk]
;W[gl]
;B[hm]
;W[gj]
;B[dk]
;W[ck]
;B[hl]
;W[gn]
;B[gm]
;W[fl]
;B[hn]
;W[go]
;B[of]
;W[hp]
;B[ho]
;W[jn]
;B[jo]
;W[jm]
;B[sf]
;W[se]
;B[fs]
;W[gs]
;B[es]
;W[ng]
;B[jl]
;W[kl]
;B[jk]
;W[hk]
;B[il]
;W[js]
;B[ls]
;W[kn]
;B[io]
;W[nk]
;B[im]
;W[tt]
)