(

;

ROund[2]

EVent[21st  London  Go  Open]

DaTe[29/12/94]

PlaCe[Highbury Roundhouse, London.]

PlayerBlack[Robin Upton]

PlayerWhite[France Ellul]

BlackRank[4 kyu]

WhiteRank[4 kyu]

KoMi[7.5]

REsult[B +75=]

SiZe[19]

;

Black[qc]

;

White[dd]

;

Black[pp]

;

White[dp]

;

Black[cj]

;

White[cg]

;

Black[cn]

;

White[fp]

;

Black[kq]

;

White[iq]

;

Black[bo]

;

White[cq]

;

Black[pj]

;

White[pd]

;

Black[qd]

;

White[pe]

;

Black[ob]

;

White[md]

;

Black[fc]

;

White[hc]

;

Black[cc]

;

White[dc]

;

Black[cd]

Comment[White must play d15 now, or else]

;

White[ce]

Comment[things go wrong when white cuts ...]

;

Black[be]

;

White[bf]

;

Black[de]

;

White[cf]

;

Black[db]

;

White[eb]

;

Black[ed]

;

White[ee]

;

Black[ec]

;

White[df]

;

Black[fe]

;

White[ef]

;

Black[ff]

;

White[fg]

;

Black[gg]

;

White[gh]

;

Black[hg]

;

White[he]

;

Black[fh]

;

White[eg]

;

Black[gi]

;

White[np]

;

Black[hh]

;

White[kp]

;

Black[dh]

;

White[qq]

;

Black[pq]

;

White[qp]

;

Black[po]

;

White[qo]

;

Black[bh]

;

White[pn]

;

Black[nq]

;

White[mq]

;

Black[no]

;

White[pr]

;

Black[mp]

;

White[lp]

;

Black[op]

;

White[mo]

;

Black[on]

;

White[om]

;

Black[mn]

;

White[np]

;

Black[pm]

;

White[qn]

;

Black[mp]

;

White[em]

Comment[Seems correct.]

;

Black[dl]

;

White[np]

;

Black[or]

;

White[nr]

;

Black[mp]

;

White[ej]

;

Black[eh]

;

White[np]

;

Black[qr]

;

White[oq]

;

Black[ps]

;

White[nq]

;

Black[nm]

;

White[ol]

;

Black[nk]

;

White[pl]

;

Black[kd]

;

White[kf]

;

Black[id]

;

White[hd]

;

Black[mc]

;

White[lc]

;

Black[ld]

;

White[lb]

;

Black[me]

;

White[nd]

;

Black[ne]

;

White[le]

;

Black[od]

;

White[nc]

;

Black[nb]

;

White[mb]

;

Black[oc]

;

White[mc]

;

Black[jf]

;

White[je]

;

Black[ke]

;

White[lf]

;

Black[ie]

;

White[oe]

;

Black[nf]

;

White[ng]

;

Black[of]

;

White[qe]

;

Black[pg]

;

White[pc]

;

Black[pb]

;

White[rb]

;

Black[kc]

;

White[kb]

;

Black[qb]

;

White[re]

;

Black[rd]

;

White[rg]

;

Black[qh]

;

White[na]

;

Black[qf]

;

White[rf]

;

Black[rh]

;

White[sd]

;

Black[sc]

;

White[sf]

(

;

Black[jb]

Comment[Seems weak.]

;

White[jc]

;

Black[jd]

;

White[ic]

;

Black[hf]

Comment[Perhaps J14 would have been better; less ko-aji.]

;

White[rc]

;

Black[ma]

Comment[I think white should avoid playing M19 here.]

(

;

White[la]

;

Black[oa]

;

White[ja]

;

Black[ra]

;

White[sb]

;

Black[qa]

;

White[ln]

;

Black[lm]

;

White[pf]

;

Black[og]

;

White[qg]

;

Black[ma]

;

White[ib]

;

Black[sa]

;

White[km]

;

Black[kn]

;

White[lo]

;

Black[kl]

;

White[jm]

Comment[The game record ends here. Black played relatively peacefully and won by about 75 points.]

)

(

;

White[ib]

Comment[This seems better for white...]

;

Black[ra]

Comment[But I think black still wins this semiai.]

;

White[sb]

(

;

Black[oa]

Comment[Taking the stone seems like the most natural move to gain liberties,]

;

White[qa]

Comment[but the white throw-in is tesuji]

;

Black[pa]

;

White[ja]

;

Black[qg]

;

White[la]

;

Black[sh]

;

White[na]

Comment[making this an impossibly heavy and indirect ko for black. ]

)

(

;

Black[qa]

Comment[R19 is the vital point, and is tesuji.]

;

White[oa]

;

Black[qg]

;

White[la]

;

Black[pf]

;

White[ja]

;

Black[sh]

;

White[ma]

;

Black[sg]

Comment[White loses by 1 liberty.]

)

)

)

(

;

Black[ra]

Nodename[Honte]

Letter[sb][rc][oa][sa][pa][ma][la][qa]

Comment[S19 solves all black's problems. The continuation up to g is inevitable 

if white is to prevent black from making 2 eyes, then black 'h' is unanswerable. Black missed this variation in the game.]

;

White[sb]

;

Black[rc]

;

White[oa]

;

Black[sa]

;

White[pa]

;

Black[ma]

;

White[la]

;

Black[qa]

;

White[ma]

;

Black[jb]

)

)
