(;AW[sb]AW[rb]AW[qb]AW[pc]AW[oc]AW[nc]AB[mc]AB[md]AB[nd]AB[od]AB[pd]AB[qc]AB[rc]AB[qe]C[Black to kill]AP[goproblems]
(;B[nb]
(;W[pa]
(;B[ob];W[pb];B[ra]C[RIGHT])
(;B[oa]C[RIGHT]
(;W[ra];B[pb]C[RIGHT])
(;W[pb])))
(;W[ob];B[oa];W[pb];B[mb];W[pa];B[ra]C[RIGHT])
(;W[pb]
(;B[ra]
(;W[mb];B[lb]
(;W[oa];B[ma];W[qa];B[ob]C[RIGHT])
(;W[ma]
(;B[na];W[oa];B[la];W[ob];B[qa]C[RIGHT])
(;B[la];W[oa];B[na];W[ob];B[qa]C[RIGHT]))
(;W[ob]
(;B[ma]
(;W[oa];B[qa]C[RIGHT])
(;W[qa];B[oa]C[RIGHT]))
(;B[na];W[oa];B[ma];W[qa])))
(;W[qa];B[oa];W[mb];B[lb]C[RIGHT]))
(;B[oa];W[pa];B[ra];W[mb];B[lb]C[RIGHT])
(;B[pa];W[ob];B[oa];W[mb])
(;B[qa];W[ra];B[pa];W[ob];B[oa];W[mb])
(;B[ob];W[pa];B[ra]C[RIGHT])))
(;B[oa]
(;W[pa];B[nb]
(;W[ra];B[pb]C[RIGHT])
(;W[pb];B[ra];W[mb];B[lb]C[RIGHT]))
(;W[ob];B[nb];W[pb];B[mb];W[pa];B[ra]C[RIGHT])
(;W[pb];B[nb];W[pa];B[ra];W[mb];B[lb]C[RIGHT])
(;W[nb];B[na];W[mb];B[lb];W[ma];B[pb];W[qa];B[la]C[RIGHT])
(;W[mb];B[nb];W[pb];B[lb];W[pa];B[ra]C[RIGHT])
(;W[na];B[nb];W[pa];B[ma]
(;W[ra];B[pb]C[RIGHT])
(;W[pb];B[ra]C[RIGHT])))
(;B[ra];W[pa]
(;B[nb];W[ob])
(;B[oa];W[na];B[nb];W[ob]))
(;B[pa];W[ob]
(;B[oa];W[na]
(;B[mb];W[nb];B[ma];W[pb])
(;B[ma];W[nb]
(;B[pb];W[qa])
(;B[mb];W[pb])))
(;B[nb];W[oa];B[na];W[pb]))
(;B[mb];W[pa]
(;B[oa];W[ob]
(;B[na];W[ra])
(;B[nb];W[na]))
(;B[ob];W[pb]
(;B[ra];W[nb])
(;B[nb];W[ra])))
(;B[ob];W[nb]
(;B[pb];W[pa])
(;B[mb];W[oa]))
(;B[pb];W[ob]
(;B[oa];W[pa];B[nb];W[na])
(;B[nb];W[oa])))