About Combination Lock - Free math puzzles

Combination Lock has been created for everyone who enjoys number puzzles and math games. It is free to play.

The different games:

This is the area where you can practice playing the different types of math puzzles by selecting the number of reels and the difficulty level. Your best times are stored in a cookie on your computer, so other users of your computer may see and improve your times. If you complete the 2, 3 and 4 reel puzzles at all difficulty levels, the 5 reel puzzles will be unlocked.

Solo Play
Solo Play is for math puzzlers who want to compare scores with other players in their country and across the world. The games consist of three or more online puzzles played one after the other. The top times are shown on the Hi Scores page. The day's best score for Game C is also shown at the top of this and other pages.

This allows you to pit your wits against other players in a real-time contest. All players have the same set of clues, and must try to open the lock in the shortest time. 3, 4, 5 and 6 reel challenges are the math puzzles available.

Maniac Puzzle
A game of chance! Six reels and no useful clues. A prime candidate for - if you have time to waste, this is the place to do it! Also check out for more free math games.

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Concept and design by Ian Andrew
Implementation by Chris Andrew, Jon Grove

© 2015