Two players build 6 coloured towers together. Goal: get each tower as close as possible to a total of 21. Whoever places the last stone in a tower wins the point for that tower.
Material
36 coloured stones: 1–6 each in Red, Blue, Yellow, Green, Orange, Purple
The program removes 3 random stones per player. These are not part of the game.
The first 9 stones are randomly arranged by the program in a 3×3 grid — they stay hidden from your opponent!
You may look at your own stones and memorise the positions.
Colour Wheel & Adjacency
The 6 colours form a circle: Red — Orange — Yellow — Green — Blue — Purple (and back to Red).
Each stone may be placed in its own colour tower or in the two neighbouring towers:
🔴 Red → Purple, Red or Orange tower
🟠 Orange → Red, Orange or Yellow tower
🟡 Yellow → Orange, Yellow or Green tower
🟢 Green → Yellow, Green or Blue tower
🔵 Blue → Green, Blue or Purple tower
🟣 Purple → Blue, Purple or Red tower
How to Play
Each round consists of 3 turns.
At the start of the round each player takes a line in any direction (3 stones) from their grid and announces either the colours or the numbers (Grey = 0).
Then the players take turns placing 1 stone each in a tower (3 turns per round).
Each coloured stone may be placed in its own colour tower or in the two neighbouring towers on the colour wheel. Grey jokers may go in any tower.
Grids & Rounds
Rounds 1–3: stones from the first 3×3 grid. The first line may be chosen freely in any direction, then one of the other two.
Rounds 4–6: the remaining 9 stones are arranged by the program in a new 3×3 grid. The first line may be chosen freely in any direction, then one of the other two.
The direction once chosen applies to all further rounds in the same grid.
Turn Order
Round 1: P1 starts, Round 2: P2, Round 3: P1, Round 4: P1, Round 5: P2, Round 6: P1. The round starter picks their line first and places a stone first on each turn.
Grey Jokers
A joker takes on the value of the last stone placed in the tower.
A joker may not be placed as the first stone in a tower.
Two jokers may not follow directly on top of each other.
Replacing a joker: if a joker is on top and you have a coloured stone that comes closer to 21 but would exceed 21 on top of the joker, you may remove the joker and place your own stone.
Scoring
Each tower shows a coloured dot (red = Player 1, green = Player 2) indicating who placed the last stone.
Instant win: whoever first owns 3 towers that each reach exactly 21 wins immediately!
If nobody reaches 3 towers at 21, whoever owns more towers at the end wins.