Break the Code! 🔐 (a.k.a. Sayibul Web) - Your free, web based numerical Bulls and Cows (a.k.a. Mastermind) game

Break the Code! 🔐 🔢

New Game

How to play

  • The objective: Find the secret number as fast as possible.
  • In each turn you make a guess and the computer tells you the result of your guess.
  • The result of your guess shows how many digits in your guess are in the correct (✅) positions, and how many of them are in the incorrect (❎) positions.
  • Examples: (If the secret code is 1234...)
    • Guess: 1278 Result: 2 ✅ 0 ❎,
      because positions of 1 and 2 are correct.
    • Guess: 5671 Result: 0 ✅ 1 ❎,
      because position of 1 is incorrect.
    • Guess: 4230 Result: 2 ✅ 1 ❎,
      because position of 2 and 3 are correct,
      and position of 4 is incorrect.
    • Guess: 7890 Result: 0 ✅ 0 ❎,
      because none of the numbers are found in the secret code.
    • Guess: 1234 Result: 4 ✅ 0 ❎,
      You have just broken the code! :)

Rules

  • Codes or guesses may not contain duplicate numbers.
  • Codes or guesses may not have zero in their first position.

Greatest code-breakers:

5 digits
4 digits
3 digits

Latest code-breakers: