Unknot is played on a hexhex board oriented so that there is a horizontal line of adjacent cells between one pair of two opposing corner cells. Both players share a pool of stones of a single color and take turns placing then onto empty cells. Placement restrictions. The center cell is unplayable throughout the game. Player 1 may not place immediately northwest of a stone. Player 2 may not place immediately northeast of a stone. The game is over as soon as one player completes a loop of pieces around at least one empty cell. This player is then the winner. The game cannot end in a draw, so can also be played with the opposite goal: The player who completes a loop loses. —description from the designer

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