(;AB[sq]AB[rq]AB[qq]AB[qr]AW[pr]AW[pq]AW[nq]AB[pp]AB[po]AB[qn]AB[rm]AW[qp]AW[rp]AW[sp]AW[so]AW[rn]AW[rl]AW[ql]AW[pl]AP[goproblems]C[Black to win]
(;B[qo];W[qm];B[ro]C[RIGHT])
(;B[rs];W[qm])
(;B[ro];W[qo];B[qm];W[sr]
(;B[sm];W[qs])
(;B[rs];W[ps];B[sm];W[qs];B[rr];W[ss]))
(;B[qs];W[qo];B[qm];W[sm])
(;B[qm];W[sm];B[qo];W[sn])
(;B[sm];W[qm]
(;B[qo];W[sl];B[ro];W[sn])
(;B[ro];W[qo]))
(;B[sn];W[sm];B[qo];W[qm])
(;B[rr];W[qs];B[rs];W[ps];B[ss])
(;B[ss];W[qs]
(;B[qo];W[rr])
(;B[rr];W[ps])
(;B[rs];W[ps])))