I enjoyed the assorted mah jong puzzles and had a great time playing thru this game . . . until I hit the wall on the Swaptastic puzzle. The in-game help provided no assistance; there is no info for this game available at gamefaqs; and nor did I find info by googling the game title.
I'm not sure if the guide that comes with the game offers puzzle-specific instructions; if so, I would buy this game without hesitation and would give it a higher rating.