(;AB[os]AB[or]AB[oq]AB[op]AB[oo]AB[on]AB[pn]AB[qn]AB[rn]AB[sn]AB[ps]AW[qs]AW[rs]AW[pr]AW[pp]AW[ro]AW[po]C[I do not know,I do not show non-answer.]AP[goproblems];W[rq];B[qr]
(;W[sr];B[qq];W[rr];B[sp]
(;W[rp]C[RIGHT])
(;W[pq];B[qp];W[rp];B[qo];W[so]C[RIGHT]))
(;W[rr];B[pq];W[so];B[sr];W[sq];B[rp])
(;W[qq];B[pq];W[sr];B[sp];W[rp];B[so];W[qo]C[RIGHT]))