Stone Riddle 

Long Description:

A logical game, which - as one of the few - really tests your ability to think logically. Your aim is to push the blocks to indicated holes. Sounds trivially? Only appearance. There are three difficulty levels to beat, with 45 complicated stages. The game has nice coloured graphics, but its main trump is playability. If you like challenges - you're just looking on the one of the biggest.

Screenshots: