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Using the simulator
Room Codes
Short codes that let other players join a Professional mode multiplayer game.
Room Codes
When you create a multiplayer game in Professional mode, the simulator generates a six-character room code (e.g. K7Q3P9). Share this code with other players. They can enter it on the join page to be added to your game.
Easy Mode is one human player plus AI bots, so it does not use room codes.
Room codes use uppercase letters and digits, avoiding ambiguous characters like 0/O and 1/I/L for readability.