Tumbleweed is a two-player abstract game played with white and red stackable pieces on a hexagonal board, invented by Michał Zapała in 2020. It belongs to the territory family of games such as Go, Yodd or Amazons.
Tumbleweed is played on a hexagonal board with 6, 8, 10 or 11 cells per side.
The highlighteed empty cell "sees" two White pieces and one Red piece.
The objective of the game is to have more owned and controlled cells (in total) on the board than the opponent when both players pass.
At the beginning of the game the board is empty. One of the players puts a stack of two neutral (not belonging to either player) at the middle of the board and then puts one Red and one White piece on any empty cell. The other player decides what color they want to play: Red or White. The player with the Red pieces makes the first move.
The players take turns placing a stack of their pieces on some cell. The height of the newly placed stack is equal to the number of stacks of the same player "seen" from the selected cell. The selected cell must meet one of the following requirements: