(;AB[rs]AB[rr]AB[rq]AB[so]AB[ro]AB[qo]AB[po]AB[op]AB[np]AB[nq]AB[nr]AB[lr]AB[nn]AW[rp]AW[qp]AW[pp]AW[oq]AW[or]AW[os]AW[qr]AW[qs]AW[sr]C[Black to kill.]AP[goproblems]
(;B[qq];W[pq]
(;B[sp];W[sq]
(;B[ss];W[sq]
(;B[sr];W[sq]
(;B[rq]C[RIGHT])
(;B[sr];W[rq]C[CHOICE])
(;B[rr];W[rq]C[CHOICE])
(;B[ss]C[CHOICE])
(;B[rs]C[CHOICE])
(;B[qq]C[CHOICE])
(;B[ns]C[CHOICE]))
(;B[pr]C[CHOICE])
(;B[ps]C[CHOICE])
(;B[ns]C[CHOICE]))
(;B[pr]C[CHOICE])
(;B[ps]C[CHOICE])
(;B[ns]C[CHOICE]))
(;B[pr];W[ps]
(;B[sp];W[sq]
(;B[ss];W[sq]
(;B[sr];W[sq]
(;B[rq]C[RIGHT])
(;B[sr];W[rq]C[CHOICE])
(;B[rr];W[rq]C[CHOICE])
(;B[rs]C[CHOICE])
(;B[ss]C[CHOICE])
(;B[qq]C[CHOICE])
(;B[ns]C[CHOICE]))
(;B[ns]C[CHOICE]))
(;B[ns]C[CHOICE]))
(;B[sq];W[sp]C[CHOICE])
(;B[ss];W[sq]C[CHOICE])
(;B[ns]C[CHOICE]))
(;B[ps];W[pr]
(;B[sp];W[sq]
(;B[ss];W[sq]
(;B[sr];W[sq]
(;B[rq]C[RIGHT])
(;B[rr];W[rq]C[CHOICE])
(;B[sr];W[rq]C[CHOICE])
(;B[rs]C[CHOICE])
(;B[ss]C[CHOICE])
(;B[qq]C[CHOICE])
(;B[ns]C[CHOICE]))
(;B[ns]C[CHOICE]))
(;B[ns]C[CHOICE]))
(;B[sq];W[sp]C[CHOICE])
(;B[ss];W[sq]C[CHOICE])
(;B[ns]C[CHOICE]))
(;B[sq];W[sp]C[CHOICE])
(;B[ss];W[sq]C[CHOICE])
(;B[ns]C[CHOICE]))
(;B[sp];W[qq]
(;B[pr];W[sq]C[CHOICE])
(;B[sq];W[pr]C[CHOICE]))
(;B[sq];W[sp]C[CHOICE])
(;B[pr];W[qq]
(;B[sq];W[sp]C[CHOICE])
(;B[sp];W[sq]C[CHOICE]))
(;B[pq];W[qq]
(;B[pr];W[sp]C[CHOICE])
(;B[sq];W[sp]C[CHOICE])
(;B[sp];W[sq]C[CHOICE]))
(;B[ps];W[qq]
(;B[pr];W[sp]C[CHOICE])
(;B[sp];W[sq]C[CHOICE])
(;B[sq];W[sp]C[CHOICE]))
(;B[ss]C[CHOICE])
(;B[ns]C[CHOICE]))