(;AB[rr]AB[rs]AB[qq]AB[qp]AB[pp]AB[oo]AB[np]AW[qo]AW[ro]AW[ql]AW[qr]AW[pr]AW[pq]AW[op]AB[nq]AW[nr]AW[mq]AW[lq]AW[lo]AW[mn]C[Black's best move?]AP[goproblems]
(;B[or]
(;W[os]
(;B[ps]
(;W[oq];B[qs];W[or];B[mr]
(;W[ms]
(;B[ns]C[RIGHT])
(;B[lr]C[RIGHT]))
(;W[lr]C[RIGHT]))
(;W[qs];B[oq];W[mr];B[ps]C[RIGHT]))
(;B[oq]
(;W[ps]
(;B[qs];W[mr];B[ns]C[RIGHT])
(;B[mr]C[RIGHT]))
(;W[mr];B[ps]C[RIGHT]))
(;B[qs];W[oq];B[ps];W[or];B[mr]
(;W[ms]
(;B[ns]C[RIGHT])
(;B[lr]C[RIGHT]))
(;W[lr]C[RIGHT])))
(;W[oq]
(;B[ps];W[os];B[qs];W[or];B[mr]
(;W[ms]
(;B[ns]C[RIGHT])
(;B[lr]C[RIGHT]))
(;W[lr]C[RIGHT]))
(;B[qs]C[RIGHT])))
(;B[oq];W[or])
(;B[os];W[or])
(;B[ns];W[or])
(;B[ps];W[or])
(;B[mr];W[oq]
(;B[or];W[no])
(;B[ns];W[or]
(;B[os];W[no])
(;B[qs];W[no])
(;B[ps];W[no])
(;B[no];W[lr]))
(;B[os];W[no])
(;B[ps];W[no])))