Shop › Magic Square Puzzle: Tidal Pool (49pc) Image 1 of 2 Image 2 of 2 Magic Square Puzzle: Tidal Pool (49pc) $14.95 A challenging 49-piece tile logic puzzle with a colourful tidal-pool theme and one correct arrangement. Add To Cart Added! A challenging 49-piece tile logic puzzle with a colourful tidal-pool theme and one correct arrangement.