Codebreaker

How to play

1. Choose a color for every slot using its menu, then select Check code or press Enter. Colors can repeat, and the numbered color labels identify the same colors throughout the board.
2. Exact counts colors in the correct slot. Misplaced counts correct colors in different slots. These are totals, not markers for particular slots; each color occurrence counts at most once.
3. Use the previous guesses and the attempts-left counter to refine your next code. Getting every slot exact completes the puzzle; using all attempts ends it and reveals the code.

Daily challenge

Everyone gets the same daily challenge for the UTC date. Your saved attempt resumes when you return; the next challenge arrives at midnight UTC. Daily results do not change Elo.