Slide Puzzle IQ - Number Brain

Official Brain

About this game

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?

What’s new

Sharpen your logic, focus, and problem-solving skills through number-based sliding puzzles
Multiple difficulty levels from easy to expert to suit all skill levels
Real-time move counter and timer displayed during active gameplay
Personal best tracking to encourage improvement across sessions
Smooth and clean UI design for a comfortable puzzle experience
Progress tracking to monitor improvement over time
Offline gameplay support — no internet connection required