Flippy the Train vs Lights Out

Build a train track to solve digital circuitry puzzles! Flippy the Train rides the rails, flipping switches to model basic digital circuitry: NOT, AND, and OR logic gates. After building these basics, reuse them in larger tracks to create the more-complex XOR gate and half-adder. What is the fewest number of track segments required to build a half-adder? Includes a sandbox mode for creating arbitrary track for Flippy to ride.

Welcome to Lights Out: Boolean Logic – The Ultimate Minimalist Circuit Challenge. Forget simple puzzles. Lights Out introduces a refined logic experience based on the core principles of digital engineering: manipulating the state of a complex system through Boolean logic gates. It’s a game of troubleshooting, signal flow, and tactical foresight that turns a clean digital canvas into a playground for your mind. Your mission: Achieve total darkness. Every switch is a control; every gate is a logical operator. Toggle the switches to redirect the flow of energy through AND, OR, and NOT gates. Can you find the precise configuration that shuts down the entire grid across over 9 quintillion possibilities? Key Features The Power of the Master Switch Experience the satisfaction of the perfect shutdown. In a world of complex wiring, your task is simple but profound: find the one combination of states that turns every bulb off. Mastering the flow of the circuit is the mark of a true Logic Engineer. Infinite Logical Systems The challenge literally never ends. From basic NOT gates to massive, multi-layered Boolean webs, our engine generates unique, solvable puzzles that scale with your skill. With billions of configurations, you will never see the same circuit twice. Pristine High-Contrast Design Immerse yourself in a distraction-free environment. Featuring a crisp background, sharp circuit lines, and vibrant color-coded gates, our high-contrast aesthetic provides a sophisticated atmosphere designed for deep focus and mental clarity. Real-Time Signal Propagation Watch the logic come to life. Every tap of a switch triggers a cascading wave of energy as signals propagate through the gates in real-time. Feel the impact of every choice as the grid reacts instantly to your commands. Step-by-Step Logic Hints Stuck in a live circuit? Our smart hint system doesn't just solve it for you; it analyzes the current state and toggles the first switch required to move you closer to the solution, ensuring you maintain your "Flow State" while learning the logic. Quintillions of Levels How far can your logic take you? Track your progress across a staggering number of levels. From the simplicity of Level 1 to the complexity of the 64-bit integer limit, your journey is truly infinite. Global Leaderboards Climb the ranks and earn the prestigious title of "Logic Engineer." Compare your level progress with players worldwide and prove you have the most advanced Boolean reasoning on the planet. Gameplay Highlights: • Boolean Logic: Based on the fundamental principles of computer science made into an addictive puzzle. • Zero Pressure: No timers, no penalties—just you and the circuit. • Mental Sharpness: Enhances deductive reasoning, troubleshooting skills, and system analysis. • Minimalist Perfection: A beautiful, quiet game that fits perfectly in your pocket. The grid is live. The solution is hidden. The darkness is a single switch away. Download Lights Out: Boolean Logic today and Begin Shutdown!