Object: Create an admissible setup of magnets.

Click the board to create a randmized setup of dominoes which are magnetic.
You will not see the setup, but only counters at the border which tell you how many positive ends and how many negative ends of magnets are in each row or column.

Click the board to mark a position for a positive end of your magnet, then click one of the four adjacent positions to drop the negative end of your magnet.
The positive ends of your magnets is not allowed to be adjacent to the positive side of any other magnet on the board; a similar rule hold for the negative sides.

Counters will appear at the extreme border showing how many positive ends and how many negativ ends of your magnets are in each row or column.
You win when your counters tally with the given counters.

You can delete an existing magnet by clicking it.

Variants:
The four variants will use 5, 10, 15 and 20 magnets respectively.