Click the menu button 'M' at the top right border to select a challenge with a fixed setup.

You are presented with a double board. (In the default variant, click the left 7x7 board to randomly drop 49 coloured 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.

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

You win if either each row or each file is monochrome, e.g., if the bottom row contains 3 red coins and no other coins, the second row contains a 5 yellow coins and no others, and so on.
Note that each of those coins can have other coins hidden underneath in the same stack, but these hidden coins do not affect the win condition.

Experts: try to create a winning setup in as few moves as possible.
All solutions have been found by hand; so you might be able to improve on them.

There are 50 variants with fixed setups.
The 6 random variants have boards 6x6, 7x7, 8x8 and two different amounts of coins dropped.

Please note that there is an alternative piece set available.
There are also three fully functional prototype games (zrfs) attached which you can use to create your own games with stacked pieces. For details read the attached Readme text.

 
Technical information:
Games with mixed stacks of pieces on board positions are notoriously hard to encode in Zillions, because Zillions allows only one piece per board position.
The dual-board method I originally invented for the game 'Laska' solves this problem.