Guess the secret code using your logic and memory! Logic puzzle with over 1.5 million downloads, a modern version of the classic guessing game of Bulls and Cows. Similar to classics such as Mastermind, Jotto or Crack the Code, it is played with numbers instead of colors. An easy yet challenging brain-training game in the style of logic thinking made popular by Sudoku, it will exercise your brain and logic and improve your deductive reasoning if played daily. How to play: Try to guess the secret code for the "vault" in as few attempts as possible. The code has only unique digits. For each attempt entered, the computer gives out some clues: * blue squares, one for each digit that belongs to the code, but was placed on a wrong position * red squares, one for each digit that was guessed on the correct position * if no square was lit, it means that none of the digits you entered belongs to the secret code (not even on the wrong position) There is no connection between locations of the blue/red squares and the locations of the secret digits - thats the challenge, youll need to guess not only the digits but also their correct locations. Get to work now: try different versions, narrow down the combinations, eliminate the wrong digits and use logic and deduction to swap around and find the right ones. Stuck? Use Hints to learn one of the digits composing the secret code! * Log in to Game Center and see if you can beat the best score of the day!