(;AW[nn]AW[on]AW[mo]AW[oo]AW[mp]AW[np]AW[op]AW[oq]AW[or]AW[qr]AW[qs]AB[mm]AB[nm]AB[om]AB[mn]AB[pn]AB[lo]AB[po]AB[lp]AB[pp]AB[mq]AB[nq]AB[qq]AB[rq]AB[lr]AB[rr]C[Black to kill]
(;B[os]
(;W[ns]C[CHOICE]
(;B[nr];W[ps];B[pq]C[RIGHT])
(;B[pr];W[pq]
(;B[nr];W[ps])
(;B[rs];W[ps]))
(;B[pq]C[RIGHT]))
(;W[nr]C[CHOICE]
(;B[pr];W[pq]
(;B[rs]C[RIGHT])
(;B[ms];W[mr]
(;B[rs];W[lq]
(;B[kq];W[mq])
(;B[mq];W[kq]))
(;B[lq];W[ps])
(;B[ls];W[lq];B[mq];W[kq]
(;B[rs];W[ns];B[ps];W[kr])
(;B[ns];W[ps];B[rs];W[pr]))
(;B[ns];W[ps];B[ls];W[lq];B[mq];W[kq];B[rs];W[pr])))
(;B[rs];W[pr]
(;B[ns];W[mr];B[ms];W[lq];B[kq];W[mq])
(;B[mr];W[ns]))
(;B[ns];W[mr]
(;B[lq];W[ms])
(;B[ms];W[lq];B[mq];W[kq];B[pr];W[kr]
(;B[ls];W[ks];B[ps];W[pq])
(;B[pq];W[ls]))))
(;W[pq]C[CHOICE]
(;B[ns];W[nr]
(;B[mr];W[ps];B[ms]C[RIGHT])
(;B[ms]C[RIGHT]))
(;B[nr]C[RIGHT])
(;B[ms]C[RIGHT])
(;B[ps];W[nr];B[ns];W[mr];B[ms];W[lq];B[mq];W[pr];B[ls];W[kq])))
(;B[nr];W[os]
(;B[pq];W[pr])
(;B[pr];W[pq]))
(;B[pr];W[pq]
(;B[rs];W[ps])
(;B[os];W[ns]
(;B[nr];W[ps])
(;B[rs];W[ps])))
(;B[ns];W[os];B[pq];W[pr])
(;B[pq];W[pr];B[os];W[nr];B[ns];W[mr];B[ms];W[lq]))