The classic code-cracking deduction game. Guess the hidden 4-colour code — black pegs mean right colour in the right spot, white pegs mean right colour, wrong spot.
Rules
Click pegs in the colour picker to fill your 4-peg guess.
Press Check to lock it in and see your feedback: a black peg for each correct colour in the correct position, a white peg for each correct colour in the wrong position.
Use the feedback from every previous row to narrow down the code.
Crack the code within 10 tries to win.
Tips
A 4-peg, 6-colour code can always be solved in 5 guesses or fewer with careful deduction — start by testing 2 colours across all 4 pegs to learn how many of each are in the code before worrying about position.