This isn't the one that I'm looking for, what I mean is that any chess player can play and do a PVP style of game but to join a matchmaking, they need to put a certain amount for example, you and me will each put a 0.005 btc and the total pool would be 0.01 and whoever wins between us will be getting the pot and Coinplay isn't that, it's just betting on professionals and grandmasters.