Game Board
The game is played on a hexagonal board. The board does not change during the game.
Each player starts with
14 marbles placed on opposite sides of the grid.
The coordinates of each cell are represented on the image below. White and black
cells depict the initial positions of the marbles.

The players take turns, black starts.
On their turn, each player chooses from one to three marbles of their color that lie in a straight line
and moves them one cell in a choosen direction. Each direction is labelled
from
0 to
5.
The directions:

The marbles can be moved only into empty cells.
If the direction of the move is parallel to the line of marbles, the move is called an
in-line move.
Sumito
When the player's in-line move is blocked by enemy marbles, the player might sometimes apply a
Sumito move.
If the length of player's marbles column is strictly longer than the number of enemy marbles in a consecutive line in that direction
and after the enemy marbles' line there is an empty space or the end of the board, the player may still apply an in-line move and push the enemy marbles.
If the last marble of the pushed enemy column gets pushed out of the board, the marble is then removed.
Winning
The first player that successfuly removes six enemy marbles wins. The game lasts for
350 turns. If after the last round both players removed
less than six marbles, to avoid excessive amount of draws, the player that removed more marbles wins.
If both of the players removed the same amount of marbles, there is a draw.