This position arises in a variation of the onadare (large avalanch) joseki... what can black gain from it?
(;AW[pc]AB[pe]AW[qe]AB[pd]AW[qd]AB[oc]AW[qf]AB[pf]AW[pg]AB[qc]AW[pb]AB[rc]AW[ob]AB[qg]AW[og]AB[nd]AW[nc]AB[od]AW[rg]AB[qh]AW[rh]AW[nb]AB[mc]AB[md]AB[ld]AW[me]AW[mg]AB[qi]AW[rb]C[Best result for black in the corner...]AP[goproblems]
(;B[rd];W[se]C[black loses the semeai here...])
(;B[sd]
(;W[rf]C[CHOICE];B[qb];W[qa];B[ra];W[sa];B[sb]C[yap, ko is the best you can get.. but sometimes it's more then enaugh ;pRIGHT])
(;W[re]C[CHOICE];B[qb];W[qa];B[ra];W[sa];B[sb]C[a ko, nice :)RIGHT]))
(;B[qb];W[rd]C[nop, nothing there...]))