In CircleCrypt, your goal is to crack a secret 5-unit code in as few attempts as possible.
Each unit in the code consists of a letter (A-J) and a number (0-9). For example, a valid code might be: A3 B7 C1 D9 E4.
You win by correctly guessing all five units in their exact positions. The challenge is to use logical deduction based on the feedback you receive after each guess.
To make a guess, enter five code units in the input fields. Each unit must follow the format of:
After submitting your guess, you'll receive immediate feedback on each unit.
After each guess, you'll receive visual feedback in the form of colored circles around each unit. These colors indicate how close each unit is to the correct answer:
| Indicator | Meaning |
|---|---|
A0 | Black border: No match. Neither the letter nor number appears in the secret code. |
B2 | Orange border: Partial match. Either the letter or number appears in the code, but in a different position. |
C5 | Thick orange border: Letter or number is in the correct position, but the other part is wrong. |
D7 | Green border: Exact unit match, but in the wrong position within the code. |
E9 | Thick green border: Perfect match! This unit is correct and in the right position. |
Let's walk through a simple example. Imagine the secret code is: A3 B7 C1 D9 E4
Analysis:
Analysis:
Congratulations! You've cracked the code in 3 guesses!
Use the black indicators (no match) to systematically eliminate letters and numbers from consideration.
Once you identify a unit with a thick green border (perfect match), keep it in the same position for subsequent guesses.
If you have a green indicator (exact unit but wrong position), methodically try that unit in different positions.
The game includes an autofill button that automatically fills in the units you've already confirmed with green-double indicators.