These puzzles are available to play online.


Neuronics is a puzzle game; the aim of the game is to bring matching symbols together to remove them.

The Nowotnik Puzzle

In this puzzle game a grid of tiles is jumbled and the objective of the game is to restore the original state of the grid. However, moving a tile affects many other tiles.


Pentominoes is a tile stacking puzzle, with thousands of variations.

The 12 Coins Puzzle

This is an online implementation of the famous 12 coins puzzle. There are 12 coins, all identical in appearance, and all identical in weight except for one, which is either heavier or lighter than the remaining 11 coins. Determine which is the counterfeit coin, and whether it is lighter or heavier than the real coins, in only 3 weightings with a balance scale.


The goal of the puzzle is to assemble a molecule by moving its constituent atoms around.

The trouble is that once moved, the atoms will continue moving until they hit an obstacle (such as a block or another atom).

The target molecule to be constructed is shown above the playing area. This molecule can be dragged over the playing area to see where it fits.


A remake of the classic puzzle game.


A remake of the classic puzzle game.