You are presented with a double board containing 25 coins. Some of the coins will be stacked on top of each other.
You move your pieces only on the left board.

The second board displays in detail which coins are in each stack.
A stack is indicated on the left board by a thick black ring underneath the top coin.

You can pick up a stack and move 'n' steps, if it contains 'n' coins.
The lowest coin of the stack will be dropped onto the position one step away, the next onto the position two steps away and so on.
Additionally (to speed the game up), a single coin can be moved any distance.

If the top coin of the moved stack is of the same type as the coin in the target position it is dropped onto, the stack at the target position will disappear.

The maximum height of a stack is 10 coins.
You lose if you try to make a stack higher than 10.

You win if you have eliminated all coins.
Experts: try to eliminate all coins in as few moves as possible.

The 6 random variants have boards 5x5, 6x6, 7x7, 8x8 and two different amounts of coins dropped.
Interestingly, this game seems to be more fun on a small board.

Please note that there is an alternative piece set available.

 
Related Zillions games: Stacks, Staxa, and (distantly) Laska.