In response to Bytemaster's chess DAC proposal that can be found here: https://bitsharestalk.org/index.php?topic=9199.0
Here is my proposal:
Two account types: Players and Gamblers.
Players have ELO (http://en.wikipedia.org/wiki/Elo_rating_system
) and compete against each other in direct 1v1 chess battles. Possibly tournaments etc...
All the games are played on the blockchain all the moves are transactions signed by respective Players' private keys.
Before each game a winning odds are calculated based on the Players' ELO. Gamblers can bet on the winner and any other statistic (who will get first piece, what will be the next move, how many turns to check (mate), etc) .
2% of all bets go to the winner.
1% of all bets go to the loser.
In case of a tie each player gets 1%.
2% are burned. (3% in case of a tie).
This way we have a Game with verifiable players, ELO, ratings and so on. Just as competitive as anywhere else. And as the players take some of the fees -> there are some rewards for them.
However, player moves are feeds for the Gamblers, where the actual money are.
PS: Of course the Players should be public figures , maybe real chess players who play for honor and will not cheat in order for some Gamblers to benefit.