Given domino pieces have been arranged together, and afterwards the borderlines between the pieces have been removed. Reconstruct the missing lines so that every domino piece exists exactly once in the grid.
- The size of the puzzle depends on the used domino set. Often the dominos from 0 to 6 are used, together with an 8x7 rectangle.
- Instead of numbers arrows have been used, that where rotated together with the stones.
- Instead of the usual rectangular domino pieces, two connected hexagons are used. The grid therefore is also hexagonal.