(;AB[na]AB[nb]AB[nc]AB[od]AB[pd]AB[qd]AB[rd]AB[rc]AW[qc]AW[pb]AW[ob]AW[rb]AW[sb]AW[ra]AP[goproblems]
(;B[qb]
(;W[qa]
(;B[oa]C[RIGHT])
(;B[pc]C[];W[oa]C[White gets a ko for life.]))
(;W[pc];B[pa];W[qa];B[oa]C[RIGHT]))
(;B[oa];W[pa]
(;B[qb];W[pc])
(;B[pc];W[qb]))
(;B[pa];W[oa]))