(;AW[ap]AW[bp]AW[bq]AW[br]AW[dr]AW[cp]AB[dp]AB[co]AB[bo]AB[ao]AB[do]AB[eq]AB[er]AB[es]C[B to move]AP[goproblems] (;B[cr] (;W[cq] (;B[ds];W[cs] (;B[ar];W[dq];B[bs];W[as]C[ko? nice! :D (there's a slightly better ko though, see nav tree)RIGHT]) (;B[dq];W[ar])) (;B[dq];W[ar]) (;B[ar];W[dq] (;B[ds];W[cs];B[bs];W[as]C[ko? nice! :D (there's a slightly better ko though, see nav tree)RIGHT]) (;B[bs];W[ds])) (;B[cs];W[bs]MA[ar]MA[ds]) (;B[bs];W[cs])) (;W[cs];B[ds];W[cq] (;B[ar];W[dq];B[bs];W[as]C[ko? nice! :D (there's a slightly better ko though, see nav tree)RIGHT]) (;B[dq];W[ar]))) (;B[ar];W[dq]MA[ds]MA[cr]) (;B[ds];W[cr]MA[dq]MA[ar]) (;B[cs];W[cr]MA[ar]MA[dq]) (;B[dq];W[ar]) (;B[bs];W[cr]MA[ar]MA[dq]))