Mastermind-style Code Breaker

Play Super Master Mind and evaluate your strategy!
During the game, each of your attempts is compared to what the optimal strategy would have played, which can help you to progress.
At each attempt, the number of possible codes is displayed, and the lists of possible codes are shown at game end.
Several displays (with colors or numbers) and modes (from 3 to 7 columns and from 5 to 10 colors/numbers) are possible.
Game scores are stored online to rank players and follow their progression.
For more information (interface usage, rules, game examples, details on the optimal strategy), go to the official site: https://supermastermind.github.io/playonline/index.html