(;AB[rb]AB[qb]AW[qd]AW[rd]AW[pf]AW[oc]AW[nc]AB[od]AB[sb]AB[sc]AW[sd]AW[rc]AW[re]AB[rg]AB[qc]AW[pb]AB[pd]AW[pe]AB[oe]AB[of]AB[og]AW[md]AW[pc]AW[qf]AB[rf]AB[qh]AP[goproblems]
(;B[sf];W[qa];B[se];W[qe]
(;B[qg];W[ra];B[pg]C[RIGHT])
(;B[pg]C[];W[ra];B[qg]C[RIGHT]))
(;B[qg];W[qa];B[pg];W[ra];B[qe];W[sa])
(;B[pg];W[qa];B[qg];W[ra];B[qe];W[sa])
(;B[se];W[sf];B[sg];W[qa];B[se]C[Ko. Black can do better.])
(;B[qa];W[pa]))