Snug

Snug is a freeware puzzle game. In Snug, the player must fit randomly-shaped blocks into a grey square.

The game features two levels of difficulty: in Dodecomino mode, you must fit 5 blocks into the square. The Hexadecomino mode displays 9 blocks instead. The mouse is used to move the blocks. Right or left click to flip or rotate them, but these actions can also be performed from the drop-down menu.