Deductive logic puzzles, no ads. Includes 10 puzzles to try before you buy.
HARD Penny Dell Logic Problems — description
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. Email: support@eggheadgames.com Web: https://eggheadgames.com
All puzzles Copyright PennyDellPuzzles.com
Latest version
Version
5.6.2
Update
Jul 12, 2026
Package ID
com.eggheadgames.logicproblems
What's new
Jul 12, 2026
Spring cleaning! No functional changes, but we cleaned, polished and emptied the trash.
Email support@eggheadgames.com anytime with screenshots and questions. We love to hear from you!