invalid problem set
Problem | 13703 |
Created | 2010-05-17 |
Source | My head |
Rating | |
Difficulty | 8 dan |
Average Solve Time | 43 secs |
User Attempts |
45 / 386 |
Solve Ratio Rating | 3 dan |
| rating history |
Obviously not a real situation. Please read the instructions - only answer whether or not you can capture the stone.
I may have missed a few variations, please comment if you spot them or if I got something wrong.
Also, this is for fun, so enjoy!
(;AW[ss]AB[rr]AB[qs]AB[qr]AB[sq]AB[sp]AB[rp]AB[qq]AB[po]AB[qp]AB[pm]AB[nn]AB[nq]AB[pq]AB[pp]AB[pr]AB[ps]AB[os]AB[or]AB[oq]AB[op]AB[oo]AB[on]AB[pn]AB[qn]AB[rn]AB[sn]AB[so]AB[ro]AB[qo]AB[qm]AB[rm]AB[sm]AB[om]AB[nm]AB[no]AB[np]AB[nr]AB[ns]AB[rq]AB[ms]AB[mr]AB[mp]AB[mo]AB[mn]AB[mm]AB[ml]AB[nl]AB[ol]AB[pl]AB[ql]AB[rl]AB[sl]AB[mq]AB[ls]AB[lr]AB[lq]AB[lp]AB[lo]AB[ln]AB[lm]AB[ll]AB[lk]AB[mk]AB[nk]AB[ok]AB[pk]AB[qk]AB[rk]AB[sk]AB[kk]AB[kl]AB[km]AB[ko]AB[kq]AB[kr]AB[ks]AB[kn]AB[kp]AW[js]AW[jr]AW[jq]AW[jp]AW[jo]AW[jn]AW[jm]AW[jl]AW[jk]AW[jj]AW[kj]AW[lj]AW[mj]AW[nj]AW[oj]AW[pj]AW[qj]AW[rj]AW[sj]TR[ss]C[Can black capture the marked white stone unconditionally? It does not matter whether black lives in the end or not, the question asks only if the stone can be captured.FORCE]LB[rs:Yes]LB[ii:No]AP[goproblems]
(;B[rs];W[sr]C[Please demonstrate]
(;B[rq];W[qr]
(;B[rr];W[rs]
(;B[qq];W[pr]
(;B[oq];W[or]
(;B[nr];W[pq]C[Note that wO3 leads to the same end result.]
(;B[pp];W[qs]
(;B[nq];W[qp];B[rp];W[qo]
(;B[ro];W[rn];B[qn];W[po];B[op];W[rm]
(;B[pn];W[oo];B[nn];W[so];B[no];W[sp];B[on];W[sq])
(;B[qm];W[so]))
(;B[os];W[ro]))
(;B[op];W[nq];B[mr];W[qp];B[rp];W[qo]
(;B[ro];W[rn];B[qn];W[po];B[rm];W[pn]
(;B[np];W[qm]
(;B[os];W[so])
(;B[sn];W[qn]
(;B[os];W[sq];B[so];W[rl])
(;B[so];W[sq])))
(;B[sn];W[np]))
(;B[os];W[ro]))
(;B[np];W[qp];B[rp];W[qo];B[ro];W[po];B[op];W[rn]
(;B[rm];W[qm];B[sn];W[qn]
(;B[so];W[sq])
(;B[os];W[sq]))
(;B[qn];W[rm];B[pn];W[oo];B[nn];W[so]
(;B[no];W[sp];B[on];W[sq])
(;B[on];W[sp]))))
(;B[qs];W[ps]
(;B[sq];W[qs];B[pp]C[RIGHT])
(;B[pp];W[nq]
(;B[sq]C[RIGHT])
(;B[op];W[mr]
(;B[sq]C[RIGHT])
(;B[ns];W[ms];B[sq]C[RIGHT]))
(;B[os]C[NOTTHIS]))))
(;B[qs];W[ps]
(;B[sq];W[qs];B[nr]C[RIGHT])
(;B[nr];W[pq]
(;B[sq];W[qs];B[pp]C[RIGHT])
(;B[pp];W[nq]
(;B[sq]C[RIGHT])
(;B[op];W[mr]
(;B[sq]C[RIGHT])
(;B[ns];W[ms];B[sq]C[RIGHT]))
(;B[os]C[NOTTHIS]))))
(;B[nq];W[nr]))
(;B[pq];W[or]
(;B[oq];W[nr])
(;B[nq];W[nr]
(;B[mq];W[mr])
(;B[mr];W[mq];B[oq];W[lr];B[qs];W[ps];B[sq];W[qs]))
(;B[sq];W[qs];B[nq];W[nr];B[mr];W[mq]
(;B[oq];W[lr])
(;B[lr];W[oq]))
(;B[qs];W[ps];B[sq];W[qs];B[nq];W[nr];B[mr];W[mq]
(;B[oq];W[lr])
(;B[lr];W[oq])))
(;B[qs];W[ps]
(;B[sq];W[qs];B[oq];W[nr]
(;B[or];W[os];B[pq];W[ns];B[mq];W[ls])
(;B[pq];W[or])
(;B[nq];W[mr]))
(;B[oq];W[nr]
(;B[sq];W[qs]
(;B[or];W[os];B[pq];W[ns];B[mq];W[ls])
(;B[pq];W[or])
(;B[nq];W[mr]))
(;B[pq];W[or];B[mq];W[mr];B[lr];W[lq])))
(;B[sq];W[qs]
(;B[oq];W[or];B[nr];W[pq];B[pp];W[op]
(;B[os];W[nq])
(;B[nq];W[qp];B[po];W[rp]))
(;B[pq];W[or];B[nq];W[nr];B[mr];W[mq]
(;B[oq];W[lr])
(;B[lr];W[oq]))))
(;B[sq];W[qs];B[pq];W[qq];B[qp];W[rp])
(;B[qs];W[ps];B[sq];W[qs]
(;B[qq];W[or])
(;B[pq];W[qq];B[qp];W[rp]))
(;B[pq];W[qq];B[qp];W[rp];B[ro];W[sq]))
(;B[qq];W[rr];B[pr];W[pq]
(;B[or];W[qp]
(;B[rp];W[ro]
(;B[pp]
(;W[sp];B[qo];W[sq];B[oq];W[rn])
(;W[qo];B[oq];W[sp]))
(;B[qo];W[sp];B[pp];W[sq];B[oq];W[rn]))
(;B[pp];W[rp];B[oq];W[sq]))
(;B[pp];W[oq];B[or];W[nr];B[nq];W[op];B[mr];W[sq]
(;B[ro];W[qo]
(;B[rp];W[rn];B[qn];W[so];B[rm];W[sn];B[po];W[qm];B[qp];W[sp])
(;B[sp];W[qp])
(;B[rn];W[rp])
(;B[po];W[rn]
(;B[qn];W[so];B[qp];W[rm])
(;B[qp];W[so];B[qn];W[rm])))
(;B[rp];W[ro])
(;B[qp];W[ro])
(;B[qo];W[rn])))
(;B[sq];W[rr])
(;B[pq];W[qq]
(;B[rr];W[rs]
(;B[qs];W[ps];B[sq];W[qs];B[qp];W[rp])
(;B[sq];W[qs];B[qp];W[rp]))
(;B[pr];W[qp])
(;B[qp];W[rr]
(;B[pr];W[rp];B[ro];W[sq]
(;B[qs];W[qo])
(;B[qo];W[qs]))
(;B[rp];W[pr];B[oq];W[or];B[nr];W[os]
(;B[nq];W[qs])
(;B[qs];W[nq];B[mr];W[np]LB[pp:A]C[Please play A];B[pp];W[lq]
(;B[lr];W[kr]C[black loses the semeai])
(;B[sq];W[lr]))))))
(;B[qr];W[rp])
(;B[rr];W[rq]
(;B[rs];W[sq])
(;B[sq];W[sp])
(;B[qr];W[ro])
(;B[qq];W[qr])))
(;B[ii]C[Navigate Solution]))
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