Slide Puzzle IQ - Number Brain

Can you solve the 15 puzzle in under 50 moves? Most people can't. Slide IQ scores your every solve — tracking moves, time, and efficiency to show exactly how sharp your logic really is. WHAT IS SLIDE IQ? The classic 15-tile number slide puzzle — reimagined with performance scoring. Slide tiles into order using the one empty space. Simple to learn. Brutally hard to master. YOUR IQ SCORE Every puzzle you solve earns a Slide IQ rating based on: - Total moves taken - Time to solve - Efficiency vs the optimal solution Beat your personal best. Watch your score climb. WHY PLAYERS KEEP COMING BACK - Classic 15-puzzle (4x4 grid) — pure logic, no luck - IQ scoring — see your real puzzle performance - Move counter and timer — track every solve - Light and dark theme — clean, distraction-free design - No popups. No paywalls. Completely free. - Offline play — works anywhere, no Wi-Fi needed TRAIN YOUR BRAIN Slide puzzles are proven to sharpen spatial reasoning, forward planning, and logical thinking. A 3-minute solve is a genuine mental workout. Whether you're a first-timer or chasing an optimal solution, Slide IQ shows you exactly where you stand. Download free. Solve smarter. What's your Slide IQ?