(;AB[pr]AB[ps]AB[oq]AB[np]AB[pp]AB[qp]AB[ns]AB[mr]AB[lr]AW[kr]AW[kq]AW[lq]AW[mp]AW[mo]AW[no]AW[oo]AW[po]AW[qo]AW[rp]AW[rq]AW[qr]AW[qs]AP[goproblems]
(;W[nq];B[nr]
(;W[op];B[ls]
(;W[or];B[pq])
(;W[pq];B[or]))
(;W[pq];B[qq]))
(;W[or]
(;B[op]C[CHOICE]
(;W[pq]C[];B[os];W[qq]C[RIGHT])
(;W[qq];B[nr]
(;W[pq];B[os];W[mq]C[RIGHT])
(;W[mq];B[ls];W[pq]C[RIGHT])
(;W[ls];B[mq])))
(;B[ls]C[CHOICE]
(;W[nq];B[nr]
(;W[pq]C[];B[qq];W[op]C[RIGHT])
(;W[op];B[pq])
(;W[qq];B[pq]))
(;W[pq];B[qq]
(;W[op];B[nq])
(;W[nq]
(;B[os];W[op];B[nr];W[pq]C[RIGHT])
(;B[nr];W[op]C[RIGHT]))))
(;B[nq];W[ls];B[qq];W[op]C[RIGHT])
(;B[os];W[nq];B[nr];W[op];B[ls];W[pq]C[RIGHT]))
(;W[pq];B[or]
(;W[nq];B[op];W[mq];B[nr])
(;W[op];B[nq]))
(;W[ls];B[op]
(;W[qq];B[mq])
(;W[mq];B[qq]))
(;W[op];B[nq]))