🔐 Code Crack
🧩 Logic · 2 playsCode Crack
Deduce a hidden four-colour code from the feedback each guess returns.
About Code Crack
A deduction game in the Mastermind mould. Four pegs of colour are set behind a screen, and every attempt is answered with markers: one sort for a colour sitting in the right place, another for a colour that belongs somewhere else. Colours may be used more than once, which is what undoes hasty players — the feedback tells you how many are right, never which ones. Sound method is to spend the opening rows establishing which colours are present at all, and the remainder fixing their order.
How to Play
Choose a colour for each of the four positions, then submit the row. A white marker means a colour in the correct position; a purple one means the colour is in the code but placed elsewhere. Colours may repeat. Ten rows are allowed.
💡 Tips & Strategy
Treat every guess as an experiment, not an attempt. Your first few guesses should be designed to extract information — repeating a colour deliberately tells you how many of it exist, which a varied guess cannot.
Change one element at a time once you have a foothold. If a guess scores two exact and you swap a single peg, the change in score tells you precisely what that peg was worth. Changing three at once tells you almost nothing.
Separate the two kinds of feedback carefully. A mark for right colour wrong place means the colour exists but you have its position wrong; a mark for right place means both are correct. Confusing them is the commonest reason a solve stalls.
Keep a written record of what each guess ruled out. The information accumulates faster than memory holds it, and most failed codes are lost to forgetting a deduction made four guesses ago.