Loophole 2D

Loophole 2D is a two player game played on a hexagonal patterned rhombus with two windows and an initial placement of stones as shown in the diagrams. Loophole 2D is a two dimensional adaptation of Loophole, a three dimensional game. Each player takes possession of an entire set of stones of one color, black or white. Draws cannot occur in Loophole 2D.

Players take turns adding their stones to unoccupied cells on the board, one stone per turn. Black makes the first placement of the game. Each player will always have a placement available on his turn and must make one.

To win you must form at least two loops. Each of the two loops must be a single node loop, a double node loop, or a triple node loop. The two loops must be topologically distinct. Two loops of the same type (e.g. two double node loops) that use the same set of nodes are not topologically distinct.

See the rule sheet in the file section for examples of loops and winning sets of loops.