Hard Logic Puzzles

Penny Dell Logic Puzzles are now available for the first time on mobile devices!

These classic puzzles are for the true logic problem fanatic. Try the first ten puzzles for free with no ads, no gimmicks. Over twenty more volumes are available for purchase, each with thirty unique puzzles, for hours of puzzling fun!

Keep your mind sharp with these stimulating logic problems that will exercise your brain muscles — a great introduction to deductive reasoning! Enjoy a range of problems in every volume.

No more erasing. Multi-level undo and Auto-X let you focus on the logic. If you get stuck, you can choose to erase errors or get a hint. Zoom the grid to fit your screen - from phone size to the largest tablet.

Features

• Auto X
• Smart hints
• Leaderboard
• Night time mode
• Pinch zoom on solving grid
• Multi-level undo