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life and death
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-3
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Problem | 21321 |
Created | 2016-09-18 |
Source | Idle Sunday morning game against a tablet app |
Rating | |
Difficulty | 9 dan |
Average Solve Time | 59 secs |
User Attempts |
18 / 133 |
Solve Ratio Rating | 2 dan |
| rating history |
(;SZ[13]AB[al]AB[bl]AB[cl]AB[ak]AW[bk]AW[ck]AW[cj]AW[ai]AW[bi]AW[aj]AB[dk]AB[dj]AB[di]AB[ci]AW[dl]AW[ch]AW[dh]AW[dg]AW[df]AB[cg]AB[cf]AB[bf]AB[ce]AB[de]AB[dd]AB[dc]AB[cc]AB[ec]AW[bg]AW[ag]AW[af]AW[be]AW[bd]AW[bc]AB[bb]AW[db]AW[eb]AW[fc]AW[fd]AB[ef]AB[eg]AB[ff]AB[fh]AB[gg]AW[gf]AW[ge]AB[hf]AW[hg]AW[ig]AW[ih]AW[jh]AW[ji]AW[jj]AW[jk]AW[jl]AW[il]AB[hl]AB[ik]AB[ij]AB[ii]AB[hj]AB[gj]AB[gi]AB[hh]AW[jd]MA[bc]C[White played the marked stone in an effort to save stones on the left. Can black capture these stones?]AP[goproblems]
(;B[cb]
(;W[bh]
(;B[ac];W[ad]
(;B[ab]C[RIGHT])
(;B[ee]C[RIGHT])
(;B[fe]C[RIGHT]))
(;B[ae];W[ab]
(;B[ba];W[ac];B[aa]C[RIGHT])
(;B[ac];W[ad])
(;B[bj];W[ee]
(;B[eh];W[ad])
(;B[cd];W[ed])))
(;B[bj];W[ee]
(;B[ac];W[ae]
(;B[ab];W[ca];B[ba];W[fe]
(;B[ad];W[eh]
(;B[cd];W[fg])
(;B[fg];W[fi]
(;B[gh];W[ei])
(;B[cd];W[gh])))
(;B[cd];W[eh]
(;B[ad];W[fg])
(;B[fg];W[fi]
(;B[gh];W[ei])
(;B[ad];W[gh]))))
(;B[eh];W[ca])
(;B[aa];W[eh]
(;B[ab];W[ca];B[ad])
(;B[ei];W[fe]
(;B[ab];W[fg])
(;B[fg];W[ca]))))
(;B[eh];W[ab])
(;B[ad];W[ae]))
(;B[ee];W[ac];B[ae]
(;W[ad]
(;B[ab];W[bj]
(;B[cd];W[cm]
(;B[ae];W[bm];B[eh];W[am])
(;B[el];W[ek]MA[ak]MA[al]MA[bl]MA[cl]TR[ci]TR[di]TR[dj]TR[dk]C[Either of the marked groups will now die]))
(;B[el];W[ek];B[fk];W[ei];B[ej]C[RIGHT]))
(;B[bj]C[RIGHT]))
(;W[bj];B[eh];W[ad]
(;B[ab];W[cm])
(;B[cd];W[cm])
(;B[el]C[RIGHT])))
(;B[fe];W[ac];B[ae];W[bj];B[eh];W[ad]
(;B[dm]C[RIGHT])
(;B[ab];W[cm])))
(;W[ee];B[eh];W[bh]))
(;B[bj];W[cb]
(;B[eh];W[bh]
(;B[ac];W[ee])
(;B[ee];W[ab]))
(;B[ab];W[bh]
(;B[ac];W[ae]
(;B[cd];W[ee])
(;B[ee];W[eh]))
(;B[ee];W[ae];B[ac];W[ba])
(;B[ad];W[ee])
(;B[ae];W[ee]))
(;B[ac];W[ba])
(;B[bh];W[ah];B[eh];W[kc]C[White believes the stones are alive.];B[bh];W[ch];B[dh];W[ba];B[bh];W[ae];B[ab];W[ac]))
(;B[ab];W[cb])
(;B[eh];W[cb]
(;B[bh];W[ah];B[bj];W[ch];B[dh];W[ba]
(;B[bh];W[ae];B[ab];W[ca];B[ac];W[aa])
(;B[ab];W[ac]))
(;B[bj];W[bh]
(;B[ac];W[ee])
(;B[ee];W[ab]))
(;B[ab];W[bh]
(;B[ae];W[ee])
(;B[ac];W[ba];B[ad];W[ee])
(;B[bj];W[kc]C[White believes the stones are alive.]
(;B[ac];W[ae];B[ee];W[ba])
(;B[ad];W[ac])
(;B[ae];W[ad]
(;B[ee];W[ba])
(;B[ac];W[ba])
(;B[cd];W[ee]))))
(;B[ah];W[bh])
(;B[ac];W[bh];B[ad];W[ee])
(;B[ad];W[bh]
(;B[ac];W[ee])
(;B[ee];W[bj]
(;B[ac];W[ae];B[ab];W[ba];B[cd];W[aa]C[Probably the best-case for white])
(;B[ab];W[ba]
(;B[cd];W[ae])
(;B[ac];W[ae];B[cd];W[aa]C[Probably the best-case for white])))))
(;B[bh];W[cb]
(;B[bj];W[ah];B[eh];W[kc]C[White believes the stones are alive.];B[bh];W[ch];B[dh];W[ba];B[bh];W[ae];B[ab];W[ac])
(;B[eh];W[ah];B[bj];W[ch];B[dh];W[ba]
(;B[bh];W[ae];B[ab];W[ca];B[ac];W[aa])
(;B[ab];W[ac]))
(;B[ab];W[ac];B[eh];W[ae];B[bj];W[ah]
(;B[ch];W[ba];B[cd];W[aa])
(;B[cd];W[ch];B[dh];W[ba])))
(;B[ah];W[bh])
(;B[ae];W[cb])
(;B[ad];W[cb])
(;B[ac];W[cb];B[ad];W[ba]))
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