For the past few days, I have been toying with an idea for a board game. To test it out, I wanted to write a simple implementation of it. Here’s an example of a type we might need in a critical phase of the game. -- | A quote for a proposal. data Quote = Quote { _proposal :: Proposal , _premium :: Int , _share :: Int } In that phase, values of this type need to be communicated back and forth between players in a unicast fashion, so we might want to add fields to indicate who sent it and who rece...