How to play
Click any tile adjacent to the empty space to slide it. Continue until tiles are in numerical order. Standard goal is 1-15 ascending with the empty space in bottom-right corner.
Game features
- Faithful 4x4 fifteen-puzzle implementation
- Five themed visual variants: classic numbers, image puzzles, alphabet, roman numerals, custom
- Move-count tracking
- Best-time-and-moves per variant
- Auto-shuffle ensures solvable starts
- Daily seeded shuffle with shared leaderboard
Editor review
This is the 15 Puzzle, the original sliding-block puzzle, dating to 1880. Fifteen numbered tiles in a 4x4 grid, one empty space. Slide tiles into the empty space until the tiles are in numerical order from 1 to 15 with the empty space in the corner.
Look, this is the puzzle that defined the entire sliding-block category, and I have a lot of affection for its mathematical structure. Sam Loyd's famous 1880s offer of $1000 to anyone who could solve a specific impossible permutation (the 14-15 swap) produced one of the more delightful con games in puzzle history.
Actual play, though, is repetitive. Once you understand the algorithm (cycle the top row first, then the left column, then the next row of the remaining sub-problem, then continue down), every puzzle reduces to the same procedure. The mathematical elegance doesn't survive the tenth solving. This isn't the puzzle's fault, it's the format's: a single puzzle type with a single algorithm to solve it doesn't reward repeated play the way a varied-puzzle-pack does.
This implementation is functionally correct. Tiles slide. Time is tracked. Best-time persists. Move counter tracks each tile movement. There's nothing wrong with the implementation. But the puzzle itself isn't where I'd send anyone for a satisfying browser puzzle. Two-and-a-half stars for accuracy to a famous historical puzzle. The historical interest is the main reason to play this rather than the play itself.
Math tutor turned freelance writer. Reviews puzzle and logic games, mostly the ones with an obvious right answer she got wrong on the first three tries.
Frequently asked questions about The 15 Puzzle
How do I play The 15 Puzzle?
Click any tile adjacent to the empty space to slide it. Continue until tiles are in numerical order. Standard goal is 1-15 ascending with the empty space in bottom-right corner.
Is The 15 Puzzle free to play in my browser?
Yes. The 15 Puzzle runs free in any modern browser. No installation, no signup, no payment required. Click the play button to load the game.
Does The 15 Puzzle work on mobile devices?
The 15 Puzzle runs in mobile browsers on iOS and Android with touch controls. Most puzzle games on FinanceMass support both desktop and mobile, though precision-heavy titles tend to play better on desktop with a keyboard or gamepad.
Who reviewed The 15 Puzzle on FinanceMass Arcade?
Maya Brennan reviewed The 15 Puzzle. Their full editor review appears above and their other coverage is available on their author profile.
Where can I find more games like The 15 Puzzle?
More puzzle titles are available on the Puzzle category page. Every game on FinanceMass has been played and reviewed by one of our three reviewers before publication.