Camera Mind is a minimalist small game, designed to test your short-term memory ability. The whole gaming process is sort of like using a camera to take photos for memory in the brain, and the goal is to find out the different ball appeared in the new photo.

Open Doors is a Sokoban style (both interface and operation) series of small puzzle games, yet it's a quite another gaming style and concept. Endless changes are derived from its simple design, on the whole it tests the players' logical thinking ability - the chain reaction caused by the every move needs to be considered clearly.

Super Stacker is a series of physics and gravity based stacking style flash games made by The Game Homepage, comes with challenge and playability. Personally, I always think the balance is a kind of art! And this game provides players with the simplest and most effective way to try it out.

BlocKage is a series of Sokoban style, logic-based small puzzle games made by Blue Wolf Games (has gone). You will be faced with dozens of brain challenging levels in each game, the goal is same - to adjust the state and move the colored boxes to the right place in order to fill all the gaps with corresponding colors.

Planarity is a small puzzle game inspired from the concept of planar graph in graph theory. Also a classic work long time ago, but it is still full of interesting and challenging even for now.