Mr. Logic's "4-Digit Puzzles"

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Welcome To Mr. Logic's "4-Digit Puzzles!"

This game consists of a series of levels, each of which contains a different "secret rule" by which a given 4-digit number changes into another 4-digit number. As a clue to help you guess what the secret rule is, you will be shown an example of how one particular 4-digit number changes.

For example, in the screenshot shown below, you are given the clue that the number 2850 changes into 2851.

In this case, a reasonable hypothesis might be that the rule is simply: "Add one to the given number". Therefore your response to the number 1026 (in the second line) would be:

1027

If your guess is correct, you will be asked to apply the same rule to yet another 4-digit number (in order to confirm that you really have discovered the actual rule and that your first response wasn't merely a lucky coincidence). In this "confirmation test", both the red and blue frames in the image will each change to green so as to alert you to the fact that a correct answer will now advance you to the next level.

If you get stuck at some point and can't figure out the rule that the current level is using, don't be afraid to just guess. There's no penalty for wrong answers. (In fact, some levels actually expect you to make several wrong guesses before you can gain enough information to correctly deduce the rule that is being used.)

Use the keyboard to enter your responses (followed by the "Enter" key). The "Backspace" key clears your response. The "Esc" key saves your current level and exits the game. (The next time you restart the game, you will automatically return to the current level.)

The object of the game is to try and reach level 21. If you get there, you will be given a secret password. If you are one of the first ten players to email that password to Mr. Logic, your name will be added to the game's Top Ten List.

Mr. Logic's "4-Digit Puzzles" game can be played either in full-screen mode, or in a window*. Just download and unzip the corresponding "4-digit" folder:

Download the "4-digit" folder (full-screen mode)

Download the "4-digit" folder (window mode)

Then double-click the "play.exe" file that you find inside the unzipped "4-digit" folder.

*[The windowed version the game is still in its Beta testing phase. If you experience any kinds
of problems (or even if you don't ), please let us know one way or the other. Thank you.]

(Mr. Logic's "4-Digit Puzzles" game was created entirely with SiMPLE using its "Drag & Drop" mode of operation.)

"Mr. Logic" is the producer of many online puzzle games. In the Spring of 2002, he created the concept of the Internet "Online Riddle" when he released his Cybertrek adventure game. Since then, hundreds of other game makers have implemented his "URL-completion" method in the design of their own games (e.g., "This Is Not Pr0n", "Zest", etc.). If you'd like to play more of "Mr. Logic's" games, just click any of the images that you see below: