I remember these puzzles. There were 3 BB's in a small plastic case with the picture of a clown or car. And 3 holes, or indentations, that never seemed to be big enough. The BB's would roll madly around until the puzzle found it's way to the drawer.

Here is my implementation.

Double tap the screen anytime for a menu to change levels:
- EASY slows the simulation and increases the hole size.
- HARD increases the speed and decreases the hole size.
- CONTINUE continues using the current image.
- NEXT goes to the next image.

Also, in some of the images the 3 holes are chosen randomly among the possible locations.

Hope you enjoy.