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ONE is a simple strategy game for 2-6 players. Your goal is to form the largest group of connected stones. Capture opponents' stones to block their expansion and add points to your score. At the end of the game, the player with the most points wins.

Beginner Tips

Try playing the smallest board first to get the feel of the game, and play with the ‘Training Labels’ option enabled.

How to Play

The first player begins by placing a stone on the board at any point where two lines intersect. The next player may not mirror the first player's move.

The goal is to create the largest group of connected stones. Stones are only connected if they are directly adjacent. Stones placed diagonally do not count. Here are some examples of connected stones:

ONE - Connected Stones.jpg

Instead of placing a stone when it is your turn, you may choose to capture one of your opponent's stones instead. Captured stones count for two points.

You may only capture a stone if one of your stones is adjacent to the stone you are capturing, and if there is a space directly on the opposite side. Multiple captures are permitted, even if they are of multiple colors. You may not capture diagonally, or capture your own stones. Here are some examples of legal captures:

ONE - Capturing Stones.jpeg

To capture, click the stone of your color you would like to capture with, and then click on the other side of the stone you would like to capture.

With the ‘Training Labels’ option enabled, stones with captures available will be marked with an ‘A’.


When a player runs out of stones, the game continues until it reaches the starting player, and then ends before their turn.


Score is calculated as follows:

# of stones in only your ONE largest connected group + (# of opponents' stones you captured x 2) = score

The player with the highest score wins.