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think before passing
Posted: Wed Dec 04, 2013 2:32 pm
by bofinken
Greetings go friends.
Here i submit a game where I afterwards think that the result isn't quite correct. We passed and counted the game: w+2,5. I want your help to determine the optimal best endgame (from both black and white) from the end position.
So see this as a endgame problem. If you want feel free to analyse the whole game of course.
Thanks in advance
(;FF[3]SZ[19]PB[bofinken]PW[smilogo]BS[0]WS[0]KM[6.5]HA[0]RU[JP]AP[]VW[]GN[Untitled]GC[]DT[2013-06-15]RE[W+2.5]PL[B];B[pd];W[dc];B[co];W[oq];B[de];W[fd];B[cc];W[cb];B[cd];W[eb]
;B[ci];W[nc];B[qf];W[jd];B[dq];W[qp];B[jq];W[qj];B[pb];W[ne]
;B[eo];W[ff];B[eg];W[fg];B[le];W[jf];B[lc];W[nb];B[lg];W[ng]
;B[pi];W[ni];B[kh];W[kj];B[ji];W[ik];B[hi];W[fj];B[gj];W[fi]
;B[gl];W[fk];B[gk];W[ip];B[jp];W[io];B[kn];W[im];B[gn];W[iq]
;B[mq];W[oo];B[gq];W[jo];B[ko];W[kp];B[kr];W[lp];B[mo];W[mp]
;B[ir];W[np];B[kl];W[jj];B[mk];W[mj];B[nk];W[pj];B[nn];W[pm]
;B[ol];W[mm];B[oj];W[oi];B[lk];W[lj];B[nj];W[mh];B[pk];W[ph]
;B[pl];W[lh];B[kf];W[jg];B[ij];W[jl];B[kg];W[ck];B[cj];W[dk]
;B[gh];W[fh];B[hf];W[ie];B[kb];W[ib];B[om];W[dg];B[cg];W[ef]
;B[pn];W[cn];B[bn];W[dn];B[do];W[bm];B[qh];W[qi];B[rh];W[pf]
;B[qe];W[bo];B[bp];W[an];B[nr];W[or];B[os];W[ps];B[ns];W[qr]
;B[lq];W[ap];B[bq];W[ih];B[ii];W[dh];B[ch];W[qm];B[qn];W[gp]
;B[fp];W[go];B[fn];W[fo];B[en];W[fq];B[gr];W[ep];B[fr];W[on]
;B[rm];W[lo];B[ro];W[nm];B[rp];W[rq];B[jb];W[ic];B[dd];W[ed]
;B[bb];W[ba];B[bc];W[kq];B[jr];W[qk];B[ql];W[aq];B[ar];W[ao]
;B[cr];W[hh];B[gi];W[gg];B[ia];W[ha];B[ja];W[nq];B[lr];W[bk]
;B[bj];W[ri];B[qg];W[dp];B[cp];W[hq];B[nd];W[od];B[md];W[oc]
;B[pc];W[pe];B[pg];W[og];B[mf];W[nf];B[el];W[fl];B[fm];W[hm]
;B[gm];W[hn];B[jn];W[hr];B[hs];W[kd];B[ld];W[ln];B[lm];W[jm]
;B[km];W[oa];B[dl];W[cl];B[pa];W[dm];B[em];W[df];B[cf];W[ki]
;B[jh];W[mb];B[po];W[pp];B[ei];W[eh];B[ee];W[fe];B[rk];W[lb]
;B[kc];W[ob];B[sj];W[si];B[hk];W[sh];B[sg];W[kk];B[ll];W[hl]
;B[eq];W[fp];B[in];W[ho];B[ak];W[al];B[aj];W[nl];B[sq];W[sr]
;B[sp];W[di];B[ej];W[dj];B[ek];W[ke];B[la];W[ma];B[ka];W[me]
;B[ab];W[mg];B[lf];W[jc];B[ok];W[pi];B[rj];W[qo];B[aa];W[ca]
;B[ml];W[mn]
;B[tt]C[bofinken: Thank you
];W[tt]C[W+2,5
however....
as I now see it there is weaknesses i both black's and white's groups...
what is the optimal outcome for black with optimal defense for white?])
Re: think before passing
Posted: Wed Dec 04, 2013 3:14 pm
by moyoaji
The top is interesting, but I think with perfect play white is fine.
http://www.lifein19x19.com/forum/download/file.php?id=3877
Re: think before passing
Posted: Wed Dec 04, 2013 3:49 pm
by Shaddy
I think there's something in the top right for White with S16 - R16 - S18.
Re: think before passing
Posted: Wed Dec 04, 2013 3:58 pm
by FrenchDude
I'm really not sure about the top right corner but it seems like black can win in any case.
http://lifein19x19.com/forum/download/file.php?id=3880
Re: think before passing
Posted: Thu Dec 05, 2013 1:57 am
by bofinken
Thanks a lot for those variations. I wonder: 265 @ H13 is not it a little bit better?
Re: think before passing
Posted: Thu Dec 05, 2013 3:13 am
by FrenchDude
Ah yeah that does look better. Then I guess white will have to give up the 2 stones at H12.