The PuzzleTo deduce the correct positions for symbols on the game board. 3 rules styles, each of them requires unique deciphering technique. 5 game board sizes: 5x5, 7x7, 9x9, 11x11 and 13x13. From speedy run to mind boggling difficulty to suit all tastes. The GameUnlike other similar board-based puzzles, no exact solution required. As long as your placement fits all rules the puzzle is solved. The ability to identify equally valid placements fast is an definite