(;AW[ap]AW[bo]AW[cq]AW[cp]AW[cr]AW[br]AW[bs]AW[bp]AB[an]AB[bn]AB[cn]AB[co]AB[do]AB[dp]AB[dq]AB[dr]AB[ds]AB[cs]C[Which is Black's best move in this area? (Assumed that all other territory and kos are settled)FORCE]AP[goproblems] (;B[ao]C[Yes. Filling dame is the etiquette of go. And getting points in Chinese rules.RIGHT]) (;B[aq]C[.FORCE];W[ar]C[.FORCE];B[ao]C[Yes. Filling dame is the etiquette of go. And getting points in Chinese rules.RIGHT]) (;B[bq]C[.FORCE];W[ao]C[Bad.]) (;B[ar]C[.FORCE];W[aq]C[.FORCE];B[ao]C[Yes. Filling dame is the etiquette of go. And getting points in Chinese rules.RIGHT]) (;B[as]C[.FORCE];W[ao]C[Bad.]))