First click the board to allow Zillions to randomize the board. 36 tiles will be displayed with some black squares at their border. The colours of the tiles have no relevance to the game.

Your task is to swap pairs of those tiles until all borders match in the following sense: A black spot on a tile must meet a corresponding black spot on the border of the adjacent tile.
Here the borders are 'wrapped around': the bottom border is treated as joined to the top border, the left border joined to the right border.

To swap two tiles simply click anywhere at the centers of the two tiles.
The tiles cannot be rotated in the first six variants.
In the other six variants, you can rotate a tile 90 degrees to the right by clicking the same tile center twice.

There are four variants with board sizes from 3x3(easy) up to 8x8 (hard).
Variants 7 to 12: like variants 1 to 6, but rotation of tiles allowed.

Be patient; the bigger boards take a few seconds to initialize.
Please note that there are four alternative piece sets available.

The Podomax puzzles which use the 7x7 and 8x8 boards must be some of the hardest puzzles I have published.
Podomax is the big brother of my original Zillions game Podo. Graphics and coding has been improved, and much larger boards are available here.
Both Podo and Podomax bear some similarity to the (non-Zillions) puzzle Eternity II.

Similar Zillions games: Podo, Jigsaw, Harry, Match.

More freeware and real puzzles and games at my homepage: karl.kiwi.gen.nz.