Problem 5079 goproblems.com


Author	marwin	Created	2004-09-20
Difficulty	6 dan (history)	Source	N/A
AVG solve time	34 sec	Stars	3.64 (14 votes)
User attempts	2426 / 7420	Collections	N/A
Genre	life and death ⓢ	Your attempts	N/A
Similar problems
Created	2004-09-20
Source	N/A
Stars	3.64 (14 votes)
Collections	N/A
Your attempts	N/A

(;SZ[19]AW[qj]AW[ql]AW[pm]AW[on]AW[qn]AW[oo]AW[ro]AW[op]AW[sp]AW[oq]AW[pq]AW[qq]AW[sq]AW[or]AB[pn]AB[po]AB[pp]AB[qp]AB[rp]AB[rq]AB[pr]AB[qr]AB[rr]AB[ps]C[Black to live]GM[1]FF[4]CA[UTF-8]AP[CGoban:2]ST[2]RU[Japanese]KM[6.50] (;B[rn] (;W[qo]C[CHOICE] (;B[sr] (;W[rs] (;B[so];W[qm];B[sp]C[RIGHT]) (;B[sn];W[qm];B[so];W[sp]) (;B[rm];W[qm])) (;W[so];B[rs]C[RIGHT])) (;B[sn];W[rs] (;B[sr];W[qm];B[so];W[sp]) (;B[so];W[qm];B[sr];W[sp])) (;B[rs];W[sr] (;B[ss];W[so]) (;B[sn];W[so]))) (;W[rm]C[CHOICE] (;B[sr];W[so] (;B[rs]C[RIGHT]) (;B[qo];W[sn];B[rs]C[RIGHT])) (;B[sn];W[sm] (;B[sr];W[rs] (;B[so];W[sp]) (;B[qo];W[so])) (;B[rs];W[sr]) (;B[qo];W[so])) (;B[qo];W[sn] (;B[sr];W[rs]) (;B[rs];W[sr])) (;B[so];W[sn] (;B[sr];W[rs]) (;B[rs];W[sr]))) (;W[sn]C[CHOICE] (;B[sr];W[rs] (;B[so];W[sp] (;B[rm];W[qm] (;B[sm];W[qo] (;B[so];W[rl]) (;B[sq];W[so])) (;B[qo];W[rl] (;B[sq];W[sm]) (;B[so]C[Ko]))) (;B[qo];W[rm])) (;B[rm];W[qm] (;B[qo]C[RIGHT]) (;B[sm];W[qo];B[so];W[sp]) (;B[so];W[sp] (;B[sm];W[qo] (;B[so];W[rl]) (;B[sq];W[so])) (;B[qo];W[rl] (;B[sq];W[sm]) (;B[so]C[Ko])))) (;B[qo];W[rm])) (;B[rm];W[qm] (;B[qo];W[rl] (;B[sr];W[sm] (;B[so];W[sp];B[rs]C[RIGHT]) (;B[rs]C[RIGHT])) (;B[rs];W[sr];B[ss];W[sm];B[so];W[sp];B[sq]C[RIGHT]) (;B[so]C[I take it that you are aware that it is not a ko for life at all because Black can live unconditionally by playing T2 or even S1 if White retakes this ko. In that case; well done.RIGHT])) (;B[sr];W[rs] (;B[qo]C[RIGHT]) (;B[sm];W[qo];B[so];W[sp]) (;B[so];W[sp])) (;B[rs];W[sr];B[qo];W[os];B[so]C[Ko])) (;B[qo];W[rm] (;B[sr];W[rs]) (;B[rs];W[sr])) (;B[rs];W[sr] (;B[qo];W[rm]) (;B[rm];W[qm];B[qo];W[os];B[so]C[Ko])))) (;B[sr];W[rs] (;B[rn] (;W[sn] (;B[rm];W[qm] (;B[qo]C[RIGHT]) (;B[sm];W[qo];B[so];W[sp]) (;B[so];W[sp])) (;B[so];W[sp] (;B[rm];W[qm] (;B[sm];W[qo] (;B[so];W[rl]) (;B[sq];W[so])) (;B[qo];W[rl] (;B[sq];W[sm]) (;B[so]C[Ko]))) (;B[qo];W[rm]))) (;W[rm] (;B[so];W[sn];B[sp]C[RIGHT]) (;B[sn];W[sm] (;B[so];W[sp]) (;B[qo];W[so])) (;B[qo];W[sn]))) (;B[so];W[sp] (;B[rn];W[sn] (;B[rm];W[qm] (;B[sm];W[qo] (;B[so];W[rl]) (;B[sq];W[so])) (;B[qo];W[rl] (;B[sq];W[sm]) (;B[so]C[Ko]))) (;B[qo];W[rm])) (;B[qo];W[rn]) (;B[sn];W[rn])) (;B[qo];W[rn])))