Software-Gate   

In this puzzle you must move squares round a grid to place them in order. If you can’t solve the puzzle, it will solve itself before your very eyes. With this program you can transform your favorite pictures into classic sliding puzzles.

15 slide puzzle is freeware recalling the popular game. The puzzle consists of a box with 15 numbered tiles that can be slid around to be arranged from 1 to 15. There is the option of turning on simple sound effects and using different color schemes.

3D Soma Puzzle is a logic game that challenges you to assemble various figures with the colored irregular 3D-blocks. At the first sight it seems to be simple but great variety of solutions for each shape make the game really challenging.