I think that backgammon is more similar to chess than poker in this respect. Despite the exogenous element of chance it can still be considered a perfect inform

I think that backgammon is more similar to chess than poker in this respect. Despite the exogenous element of chance it can still be considered a perfect information game. Your statement does not hold for games truly characterised by imperfect information (e.g. poker), in theory or in practice.