Clearly no one knows what Chess is (yes it's a board game but was the Kingdoms at War of the the olden days) you have pawns (soldiers) knights (duh) rooks (castles ooooooo see where this is going?) Bishops (idk Oracle?) King (hmmmm male KaW player) Queen (female dur) so yes a board game of a battle field is pretty much a none electronic KaW (zomg we didn't always have teh electricity? No) Betting eh no support too easily abused, great way to kill regen however so support for a "mini-game" add on. Betting on outcomes of war? I like the sound of that but you can bet a price range of allies to hire off the person you are betting against.
If you want to play chess with your friends, play Chess With Friends. If you want to farm the snot out of friends, play KaW