Sunspot is a loop-forming game played on a regular hexagonal board by placing and flipping stones. The game is guaranteed to end with a winning loop. The recommended board size is 5 or larger. The pie rule may be used for balance. GoalForm a loop of your stones around at least one enemy stone or empty site. Definitions Edge stone: a stone on the board edge, or a stone that can "see" the board edge through a straight line of empty spaces. Interior stone: a stone that is not an edge stone, i.e. it s not on the edge, and does not "see" the edge. A group, consisting of adjacent stones of a single colour, can be an edge group (having only edge stones), an interior group (having only interior stones), or a combined group (having both). A combined group has one or more edge subgroups, i.e. mutually adjacent edge stones. On your turnYour turn can consist of a placement action, which is mandatory as long as the board isn t full, and a flip action, which is optional if you just did a placement action, and mandatory if no placement action was possible. There is no passing. Placement action: place one stone on an empty site. Flip action: flip an interior stone that is part of a combined group from the opponent s colour to your colour. If the flipped stone is now part of a combined group of your colour, you must choose one edge subgroup of this group and flip it to the opponent s colour. You can only win after performing the complete flip action, so if you momentarily create a loop but then have to destroy it again you don t win. If on your turn you create a loop for both yourself and the opponent, you win. If you only create a loop for the opponent, the opponent wins. —description from the designer

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