This week I implemented user profiles and ladder ranking and matchmaking. It used to be that you can play un-ranked random games. Now you can play ranked games. The server will update your estimated skill level when you finish a ranked game. When you play a new ranked or unranked game against ladder opponents, it will take the skill difference and how often the two players have played against each other into account.
Profile pages show name, gravatar, ladder stats and the hat worn in-game:
https://fbserver.blubberquark.de/frontend/profile/...
The ladder shows all players who have won at least one ranked game this season: