(;AW[rr]AW[rq]AW[qp]AW[pp]AW[op]AW[np]AW[mp]AW[lq]AW[lr]AW[jq]AB[mr]AB[mq]AB[nq]AB[oq]AB[pq]AB[qr]C[Black to live]AP[goproblems]
(;B[or]
(;W[ps];B[qs];W[ns]
(;B[ms];W[os]LB[io:Tenuki?]C[Can b play elsewhere and live? If so, click Tenuki.
Otherwise, continue locally.]
(;B[qq]C[Correct! Life in seki.CHOICERIGHT])
(;B[io];W[qq]TR[qs]TR[qr]C[B's triangled stones are not yet connected, so this cannot become a seki; black is now dead.]))
(;B[os];W[ms]C[B is dead])
(;B[pr];W[ms];B[os]C[B is dead]))
(;W[qs]C[If w approaches from the outside...];B[ps];W[ms];B[ns]C[B is lucky to be alive (w made a mistake)]))
(;B[ns];W[or]
(;B[pr]C[(W can in fact tenuki here.)]
(;W[qs];B[ps]C[B is dead])
(;W[os]C[B is dead]))
(;B[os];W[qs]
(;B[ps];W[rs]C[B is dead])
(;B[pr]C[B is dead])))
(;B[ps];W[or];B[os]C[(W can even tenuki)];W[ms]C[B is dead])
(;B[os];W[or]
(;B[nr];W[ms]
(;B[qs];W[pr]C[B is dead])
(;B[pr];W[qs]C[B is dead]))
(;B[ns];W[qs];B[ps];W[rs]C[B is dead])
(;B[pr];W[qs]
(;B[nr];W[ms]C[B is dead])
(;B[ms];W[nr]C[B is dead])))
(;B[qq];W[qs];B[ps]
(;W[ms]
(;B[ns];W[or]C[B can't make 2 eyes.])
(;B[or];W[ns]C[B can't make 2 eyes.])
(;B[rs];W[ns]C[B is dead. :-/]))
(;W[or];B[ms];W[rs]
(;B[nr];W[os]C[B dies..])
(;B[os];W[nr]C[B dies..])))
(;B[ms];W[ps]
(;B[os];W[qs];B[pr];W[nr];B[rs];W[qs]C[B can't make 2 eyes])
(;B[or];W[qs])
(;B[pr];W[os];B[qs]LB[ns:A]LB[or:B]C[B is dead: A and B are miai to kill.])
(;B[qs];W[or]
(;B[pr];W[os]C[B is dead])
(;B[os];W[ns]
(;B[pr];W[os];B[nr];W[os]C[B dies])
(;B[nr];W[os];B[pr];W[os]C[B dies])))))