Classic 15 Puzzle – Brain Training Made Simple
Experience the timeless sliding puzzle that has challenged minds for generations, now with a clean, distraction-free design perfect for quick mental workouts.
Join thousands of users
Why players love our 15 Puzzle game
Multiple Challenge Levels
Choose from 3x3 to 7x7 grid sizes to match your skill level. Start easy and work your way up to master-level challenges that will truly test your problem-solving abilities.
Clean, Simple Design
Enjoy a distraction-free gaming experience with our minimalist interface. No overwhelming menus or cluttered screens – just pure puzzle-solving focus when you need it most.
Strategic Gameplay Options
Plan your moves carefully with our timer system that starts only when you're ready. Move multiple tiles at once to optimize your strategy and achieve victory in fewer moves.
Achievements and Competition
Unlock achievements and compete on global leaderboards based on speed and efficiency. Track your progress and see how your puzzle-solving skills improve over time.
About 15 Puzzle: Sliding Puzzle Game
Challenge Your Mind with the Classic 15 Puzzle Game!
Step into the world of the 15 Puzzle, a timeless puzzle sliding game that has captivated minds for generations. This classic number game is all about arranging numbers in a square grid, where the goal is to order the numbers from one to fifteen (or the maximum number, depending on the size of the game). With varying grid sizes like 3x3 (eight stones) and 4x4 (fifteen stones), the 15 Puzzle offers endless fun and brain-teasing challenges.
How to Play 15 Puzzle Classic Number Game?
In the 15 Puzzle, you'll find a grid with one space left free. Your task is to shift the stones into the empty space, moving them around until every stone is in its correct place. The numbers are sorted in rows, continuing from one row to the next. You win the game when all the stones are ordered correctly.
Game Features
Our 15 Puzzle game offers a range of exciting features to keep you engaged:
- Multiple Grid Sizes: Choose from different game sizes, including 3x3 and 4x4 grids.
- Achievements & Leaderboards: Unlock various achievements and compete with other players on global leaderboards based on the number of moves or the time taken to complete the puzzle.
- Strategic Play: Take your time to plan your moves, as the timer starts only when you make your first move. Shift two or more stones at once to optimize your strategy and count them as a single move.
Historical Origins
The 15 Puzzle was invented by Noyes Palmer Chapman, a postman who introduced a similar game to his friends in 1874. The puzzle became popular in Hartford, Connecticut, where it was produced as Christmas gifts by students in 1879. Initially, the stones had to be placed by hand in any irregular order, adding to the challenge and fun of the game.
The Mathematics Behind the Puzzle
Our 15 Puzzle game is generated randomly, ensuring that no number is in its correct position at the start. To ensure solvability, a special parity algorithm is used. If a generated setup is unsolvable, the last two numbers are swapped to create a valid parity. This means you'll always have a solvable puzzle to enjoy!
Why Play the 15 Puzzle?
Playing the 15 Puzzle is a great way to challenge your mind and improve your problem-solving skills. It's a classic number game that combines fun with mental exercise, making it perfect for players of all ages. Whether you're looking to beat your best time, achieve the fewest moves, or simply enjoy a relaxing game, the 15 Puzzle offers endless entertainment.
Get Started Today!
Download the 15 Puzzle game now and start sliding your way to victory. Compete with friends, unlock achievements, and climb the leaderboards. Don't miss out on the fun and challenge of this classic puzzle sliding game. Download now and test your skills!
Experience the clean, focused gameplay
See what puzzle lovers are saying
A very well designed game that is, for once, what it says. The UI isn't overpowering, just simple and SO nice. I absolutely applaud the creator of this game, because this is a masterclass of a sliding puzzle game. Anyway off of the glazing it is really good. Nice, simple UI that doesn't fry your brain the moment you set foot into the app with minimal ads. I, myself, haven't gotten a single one yet. And of course, 3x3 to 7x7 puzzles. What more could you ask for? 10/10
This puzzle game is one of my favorites, it's is easy but complex. It challenges memory and flow. To properly arrange the numbers while rearranging theirs orders to flow into place is a great passtime
Very good. No extra junk (except for the adds). Straight quick access to brain workout
Awesome easy to use puzzle mechanics, awesome games by the same maker.
Nice, clean interface. Smooth control.
best 15 puzzle app i have ever found