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Drawn game on 2 stones
Posted: Thu Nov 27, 2014 9:25 pm
by tekesta
Just now I played against COSUMI (yes!) as Black and took 2 stones. I drew for the first time ever. (yay

)
My understanding of Go has increased a little since I last played against this program, but it looks like I made too many slack moves this time around. Also, I need to play more games. (For some reason I fear losing and this keeps me from playing all the time.)
Much obliged in advance for your comments.
(;GM[1]FF[4]PB[You]PW[COSUMI]SZ[19]HA[2]AB[pd][dp]KM[0]RE[0]
;W[dd];B[pp];W[nc];B[jp];W[kc];B[pj];W[cn];B[ck];W[bp];B[co]
;W[dn];B[fp];W[bo];B[cg];W[pg];B[oe];W[nq];B[pn];W[pr];B[lq]
;W[ce];B[dg];W[qq];B[qp];W[fd];B[mo];W[me];B[nf];W[nh];B[mg]
;W[qi];B[qj];W[nj];B[ok];W[pi];B[ic];W[jd];B[id];W[ie];B[jc]
;W[kd];B[gc];W[jf];B[fc];W[ec];B[eb];W[db];B[fa];W[cq];B[dq]
;W[ki];B[jm];W[lj];B[qf];W[pb];B[qc];W[qb];B[rb];W[fn];B[fk]
;W[gm];B[bm];W[cm];B[cl];W[bn];B[bl];W[rq];B[rp];W[cr];B[dr]
;W[mr];B[lr];W[go];B[hp];W[gp];B[gq];W[ds];B[es];W[cs];B[fr]
;W[sp];B[so];W[sq];B[rn];W[mm];B[gg];W[jh];B[nd];W[pc];B[rd]
;W[md];B[oc];W[ob];B[od];W[no];B[mp];W[om];B[pm];W[bf];B[bg]
;W[np];B[mq];W[nk];B[nb];W[mc];B[mb];W[lb];B[gd];W[bd];B[fe]
;W[gi];B[fi];W[jb];B[ib];W[oj];B[ol];W[nm];B[ri];W[rh];B[rj]
;W[ed];B[ef];W[nr];B[gj];W[ia];B[ha];W[ja];B[gb];W[ls];B[ks]
;W[ms];B[kr];W[da];B[ea];W[el];B[ek];W[hi];B[hj];W[gh];B[fh]
;W[hg];B[gf];W[ij];B[ii];W[hh];B[ik];W[jj];B[jk];W[qg];B[rf]
;W[kn];B[jn];W[lf];B[lh];W[km];B[kl];W[ko];B[jo];W[dl];B[ml]
;W[nl];B[ll];W[lm];B[lk];W[he];B[ge];W[dk];B[dj];W[ag];B[ah]
;W[af];B[bh];W[rg];B[pf];W[og];B[ng];W[ho];B[ip];W[eo];B[ep]
;W[fl];B[hl];W[gl];B[hm];W[lg];B[mh];W[kh];B[ni];W[oh];B[mi]
;W[oi];B[mj];W[mk];B[hd];W[hf];B[oo];W[on];B[pq];W[op];B[po]
;W[am];B[al];W[an];B[de];W[ee];B[df];W[oq];B[sh];W[sg];B[si]
;W[sf];B[se];W[kp];B[mn];W[nn];B[hn];W[kq];B[jq];W[io];B[in]
;W[gk];B[ej];W[qa];B[ra];W[ma];B[hk];W[gn];B[do];W[fo];B[li]
;W[kj];B[kk];W[of];B[ne];W[mf];B[ln];W[cf];B[cc];W[cd];B[cp]
;W[lp];B[ad];W[bc];B[];W[lo];B[jr];W[];B[])
Posted: Thu Nov 27, 2014 11:10 pm
by EdLee
Hi tekesta,

B5 push through. Broken shape for W.

R3.
Re: Drawn game on 2 stones
Posted: Fri Nov 28, 2014 7:20 am
by Bill Spight
(;CA[ISO8859-1]GM[1]SZ[19]ST[2]AP[GOWrite:2.3.46]FF[4]AB[dp][pd]RE[0]PB[You]HA[2]KM[0]FG[259:]GN[ ]PW[COSUMI]PM[2]
;W[dd]
;B[pp]
;W[nc]
;B[jp]
;W[kc]
;B[pj]
;W[cn]
;B[ck]
;W[bp]
;B[co]
;W[dn]
;B[fp]
;W[bo]
;B[cg]
;W[pg]
;B[oe]
;W[nq]
;B[pn]
;W[pr]
;B[lq]
;W[ce]
;B[dg]
;W[qq]
;B[qp]
;W[fd]
;B[mo]
;W[me]
;B[nf]
;W[nh]
;B[mg]
;W[qi]
;B[qj]
;W[nj]
;B[ok]
;W[pi]
;B[ic]
;W[jd]
;B[id]
;W[ie]
;B[jc]
;W[kd]
;B[gc]
;W[jf]
;B[fc]
;W[ec]
;B[eb]
;W[db]
;B[fa]
;W[cq]
;B[dq]
;W[ki]
;B[jm]
;W[lj]
;B[qf]
;W[pb]
;B[qc]
;W[qb]
;B[rb]
;W[fn]
;B[fk]
;W[gm]
;B[bm]
;W[cm]
;B[cl]
;W[bn]
;B[bl]
;W[rq]
;B[rp]
;W[cr]
;B[dr]
;W[mr]
;B[lr]
;W[go]
;B[hp]
;W[gp]
;B[gq]
;W[ds]
;B[es]
;W[cs]
;B[fr]
;W[sp]
;B[so]
;W[sq]
;B[rn]
;W[mm]
;B[gg]
;W[jh]
;B[nd]
;W[pc]
;B[rd]
;W[md]
;B[oc]
;W[ob]
;B[od]
;W[no]
;B[mp]
;W[om]
;B[pm]
;W[bf]
;B[bg]
;W[np]
;B[mq]
;W[nk]
;B[nb]
;W[mc]
;B[mb]
;W[lb]
;B[gd]
;W[bd]
;B[fe]
;W[gi]
;B[fi]
;W[jb]
;B[ib]
;W[oj]
;B[ol]
;W[nm]
;B[ri]
;W[rh]
;B[rj]
;W[ed]
;B[ef]
;W[nr]
;B[gj]
;W[ia]
;B[ha]
;W[ja]
;B[gb]
;W[ls]
;B[ks]
;W[ms]
;B[kr]
;W[da]
;B[ea]
;W[el]
;B[ek]
;W[hi]
;B[hj]
;W[gh]
;B[fh]
;W[hg]
;B[gf]
;W[ij]
;B[ii]
;W[hh]
;B[ik]
;W[jj]
;B[jk]
;W[qg]
;B[rf]
;W[kn]
;B[jn]
;W[lf]
;B[lh]
;W[km]
;B[kl]
;W[ko]
;B[jo]
;W[dl]
;B[ml]
;W[nl]
;B[ll]
;W[lm]
;B[lk]
;W[he]
;B[ge]
;W[dk]
;B[dj]
;W[ag]
;B[ah]
;W[af]
;B[bh]
;W[rg]
;B[pf]
;W[og]
;B[ng]
;W[ho]
;B[ip]
;W[eo]
;B[ep]
;W[fl]
;B[hl]
;W[gl]
;B[hm]
;W[lg]
;B[mh]
;W[kh]
;B[ni]
;W[oh]
;B[mi]
;W[oi]
;B[mj]
;W[mk]
;B[hd]
;W[hf]
;B[oo]
;W[on]
;B[pq]
;W[op]
;B[po]
;W[am]
;B[al]
;W[an]
;B[de]
;W[ee]
;B[df]
;W[oq]
;B[sh]
;W[sg]
;B[si]
;W[sf]
;B[se]
;W[kp]
;B[mn]
;W[nn]
;B[hn]
;W[kq]
;B[jq]
;W[io]
;B[in]
;W[gk]
;B[ej]
;W[qa]
;B[ra]
;W[ma]
;B[hk]
;W[gn]
;B[do]
;W[fo]
;B[li]
;W[kj]
;B[kk]
;W[of]
;B[ne]
;W[mf]
(
;C[*** Black can win. See variation.]B[ln]
;W[cf]
;B[cc]
;W[cd]
;B[cp]
;W[lp]
;B[ad]
;W[bc]
;B[tt]
;W[lo]
;B[jr]
;W[tt]
;B[tt]
)
(
;C[*** Even if you cannot read this out, it is worth giving it a shot.]B[cf]
(
;C[*** See variation for Black threat.]W[cc]
;C[Black wins by 1 point.]B[jr]
)
(
;W[lp]
;B[cc]
;W[cd]
;B[bc]
(
;C[*** See variation.]W[ac]
(
;C[*** See variation.]B[ab]
;W[ad]
;B[bb]
;W[dc]
;B[be]
;W[ae]
;B[ca]
;W[ba]
;C[*** Seki. Black wins by 14 points.]B[aa]
)
(
;B[ad]
;W[ae]
;B[ab]
;W[bb]
;C[*** Picnic Ko. But . . . ]B[ad]
;C[*** White has huge threats. The ko fight may be best. See continuation for a couple of possible lines. But the seki is an easy win.]W[qd]
;B[qe]
;W[ac]
;B[qr]
(
;W[aa]
;B[ps]
;W[or]
;B[rr]
;W[os]
;C[*** Black wins by 21 points.]B[qs]
)
(
;W[rr]
;B[ad]
;W[rc]
;B[sc]
;W[ac]
;B[qs]
;W[rs]
;B[ad]
;W[pl]
;B[ql]
;W[ac]
;B[or]
;W[ps]
;B[ad]
;W[pk]
;B[be]
;W[qk]
;B[rl]
;W[rk]
;B[sk]
;W[sj]
;C[*** Black wins by 26 points.]B[sl]
)
)
)
(
;W[bb]
;B[ad]
;W[ab]
;B[dc]
;W[cb]
;B[be]
;C[*** Very bad for White.]W[ba]
)
)
)
)
Go to move 236, Black's last chance to win.
The endgame is fighting strength.

Re: Drawn game on 2 stones
Posted: Fri Nov 28, 2014 8:46 am
by tekesta
Thanks for pointing that out, Bill

I did look at the top left corner group in the last minutes of the game, but I did not think I could damage it significantly. Black at c17 would be easily trapped by White at c16 and cutting at d17 is not possible. I'll need to work some more on my endgame.
Re: Drawn game on 2 stones
Posted: Sat Nov 29, 2014 8:02 pm
by Dusk Eagle
This is another way to play the corner out.
$$B
$$ ------------------
$$ | . . . O X X . . .
$$ | . . 4 O X . X . .
$$ | . . 1 3 O X X . .
$$ | . O 2 O O O X . .
$$ | 5 . O X O X X . .
$$ | O O X X X . . . .
$$ | O X X X . . . . .
$$ | X X . . . . . . .
$$ | . . . . . . . . .
- Click Here To Show Diagram Code
[go]$$B
$$ ------------------
$$ | . . . O X X . . .
$$ | . . 4 O X . X . .
$$ | . . 1 3 O X X . .
$$ | . O 2 O O O X . .
$$ | 5 . O X O X X . .
$$ | O O X X X . . . .
$$ | O X X X . . . . .
$$ | X X . . . . . . .
$$ | . . . . . . . . .[/go]