The Hamiltonian Circuit vs Focus Table

Find a path that visits every square in the grid, avoiding walls and never crossing itself, to create one continuous circuit. To get the hang of things, start with one of the simple 4x4 grids. Plot your moves carefully. Try to think ahead; not just by one square, but by four or five. If you think you've made a mistake, trace back over your line. It will disappear. If you really get stuck, press Hints. Any mistakes will turn red, then disappear. But if you're on the right path, we'll add a line. There's only one solution for every puzzle. When you find it, you'll know. Puzzles start with 4x4 grids and go all the way to 20x20. The bigger puzzles are very challenging and can take hours to solve. If you have to quit in the middle of one, don't worry: your progress is automatically saved. Many find working on these circuits meditative; others reach for the ibuprofen. But no matter which camp you find yourself in, know you're exercising your abstract thinking skills and challenging your brain in ways that actually matter. Inspired by a puzzle created by Irish mathematician William Rowan Hamilton in 1856, these circuits start off easy and get hard. Really hard. Good luck! Terms of use: https://www.apple.com/legal/internet-services/itunes/dev/stdeula/

Focus Table brings the classic "concentration grid" mental exercise to your device, helping you boost your focus, attention, and visual scanning skills. Challenge yourself to find numbers in order as quickly as possible—perfect for a quick brain workout anytime, anywhere. Key Features: - Customizable Grids: Choose from a variety of grid sizes to match your skill level and keep things interesting. - Personalized Themes: Switch between sleek blue and bold red themes to suit your style. - Dark Mode: Enjoy a comfortable viewing experience day or night with full dark mode support. - Progress Tracking: View your attempt history and track your improvement over time.