This game simulates the falling of upright placed domino tiles. The dominoes are viewed from the top and hence are only visible as short horizontal, vertical or diagonal bars.

You play as Red against Blue.
First click the empty 8x8 board to let Zillions randomize the setup.

You can only topple one of your own dominoes. To topple a domino, you move it one step orthogonally or diagonally. This indicates the direction of its fall.
You can only topple a domino if it will cause at least one more domino to fall.
Toppled dominoes are represented by coloured squares.

Horizontally placed dominoes can only topple up or down, vertically placed dominoes can only topple to the left or right. Diagonal dominoes can only topple diagonally, but as a side effect they also topple orthogonally adjacent dominoes!
Also, no domino can topple another if they are at a right angle to each other.
If unsure, hit key F7 to see which dominoes you can topple.

A domino you topple may also topple some of your opponent's dominoes.
Two progress bars at the left border indicate how many red and blue dominoes have been toppled.

The game ends if one of the players cannot move anymore.
You win if more of your dominoes are toppled than your opponent's.

Variant 2: 144 dominoes on the 12x12 board
Variant 3: 256 dominoes on the 16x16 board

Note that there are two alternative piece sets.

The name 'Fado' is an abbreviation of 'Falling Dominoes'.