Hard logic puzzles from Penny Dell magazines — just like the print experience, built for your phone and tablet. No ads, no distractions, play offline anywhere. Try before you buy: 10 free puzzles with all features enabled. If you like them, more than 20 volumes are available, each with 30 unique puzzles for hours of brain training. CHALLENGING & AUTHENTIC These are real Penny Dell magazine logic problems — refreshingly difficult and idiosyncratic. Keep your mind sharp with stimulating puzzles that exercise your deductive reasoning skills. BUILT FOR FOCUSED PLAY No more erasing! Multi-level Undo and Auto-X let you focus on the logic. If you get stuck, erase errors, get a logical hint, or view the full hand-worked solution — just like the magazines. WORKS ON ANY SCREEN Zoom the grid to fit your device, from phone to tablet. Looking for even harder puzzles with 7-cell grids? Try our Logic Grid Puzzles app with puzzles by Puzzle Baron. Quality software by Egghead Games...