Hard Penny Dell Logic Puzzles vs N

Penny Dell Logic Puzzles to keep your brain active. These classic magazine puzzles are for the true logic problem fanatic and tend to be harder than others. Try the first ten puzzles for free with no ads, no nags and full functionality. 720 more puzzles are available for purchase in groups of thirty, for hours of puzzling fun! "Easy to use. I enjoy these more than the books." "I've always loved Dell's logic problems and this app is just like the classics." "I found it to be incredibly intuitive and user friendly. Def worth 5 stars!!!" "Always enjoyed the puzzle books before...But this app is great...Very challenging and fun to solve." 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 at multiple difficulty levels. 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. The app supports iOS accessibility features, including VoiceOver, Larger Text and Dark Mode. Quality software by Egghead Games. Contact us with questions at support@eggheadgames.com. All puzzles Copyright © 2018-2026 PennyDellPuzzles.com

Unlock your brain's full potential with Dual N-Back, the comprehensive cognitive training game designed to improve your working memory, focus, and fluid intelligence. Whether you are looking to sharpen your mind, enhance your concentration, or challenge yourself with a stimulating puzzle, Dual N-Back is the perfect mental workout for you. What is N-Back? Dual N-Back is a scientifically backed memory training exercise. "Dual" means you must process two different streams of information simultaneously: Visual: The position of a square on a 3x3 grid. Audio: A spoken letter. Your goal is to remember if the current position or letter matches the one that appeared "N" steps back in the sequence. It starts easy at N=1 or N=2, but as you progress, the challenge intensifies, pushing your brain to adapt and grow. Key Features: • Classic Dual N-Back Experience: Train with simultaneous visual (grid positions) and auditory (spoken letters) stimuli. • Customizable Difficulty: Choose your 'N' level to match your current skill and gradually increase it as your memory improves. • Adjustable Speed: Control the pace of the game to make it as relaxing or as intense as you want. • Multiple Languages: The audio letters are available in multiple languages, making the game accessible and versatile. • Clean & Minimalist Interface: A completely distraction-free design that lets you focus entirely on your brain training. • Track Your Progress: See your scores at the end of each round and watch your cognitive capacity expand over time. Why Play N-Back? Studies suggest that practicing the Dual N-Back task can lead to improvements in working memory and fluid intelligence—the ability to reason and solve new problems independently of previously acquired knowledge. Regular training can help you: • Enhance your daily concentration and focus. • Improve your ability to multitask in real life. • Keep your mind sharp, active, and healthy. Ready to take the brain test? Download Dual N-Back today and start your journey towards a sharper, faster, and more focused mind!