(;AW[br]AW[cq]AB[dq]AB[eq]AB[fq]AW[dp]AW[ep]AW[fp]AW[gp]AW[gq]AW[gr]AB[cp]AB[bp]AB[bo]AB[cn]AB[do]AP[goproblems]
(;B[cr];W[bq]
(;B[bs];W[dr]
(;B[aq];W[cs];B[ar];W[as]C[correct, ko is the best black can do under those conditions :)RIGHT])
(;B[ar];W[cs];B[aq];W[as]C[RIGHT]))
(;B[dr];W[bs];B[fr];W[es];B[aq];W[fs];B[ar];W[ds]C[:(]))
(;B[bq];W[cr];B[ar];W[dr])
(;B[dr];W[cr])
(;B[ar];W[dr]))