(;AB[rq]AB[sp]AB[qp]AB[qo]AB[po]AB[pn]AB[qm]AB[rm]AB[sm]AW[rp]AW[ro]AW[rn]AW[qn]AW[qq]AW[qr]AW[pp]AW[op]AW[no]AW[nm]AW[pl]AW[ql]AW[rl]C[White to kill]AP[goproblems]
(;W[sr];B[sn]
(;W[rr];B[so]
(;W[sq];B[rp];W[rn]C[RIGHT])
(;W[rn];B[ro];W[sq]C[RIGHT]))
(;W[sq];B[so]
(;W[rp]C[RIGHT])
(;W[rr]C[RIGHT];B[rp];W[rn]C[RIGHT])))
(;W[rr];B[sr]C[Ko. You can do better than that.]))