Boatload PuzzlesBoatload Puzzles

Sliding Puzzle

Slide the tiles back into order, 1 through 15, before you run out of patience. A classic free online sliding puzzle — no signup, plays instantly in your browser.

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How to play the sliding puzzle

Click (or tap) any tile next to the empty square to slide it in. On desktop, the arrow keys slide a tile into the empty space. Keep going until the tiles read 1 through 15 from left to right, top to bottom.

Tips for solving a 15 puzzle

  • Solve the top row first — get 1, 2, 3, 4 into place before touching the rest.
  • Then lock in the second row the same way.
  • Finish the bottom two rows together, column by column.

Sliding Puzzle Online — Free 15 Puzzle & 3×3 Sliding Puzzle Game

Play the classic sliding puzzle online — free, no signup, in your browser. Slide the numbered tiles back into order to complete the 15 puzzle (4×4) or switch to the 3×3 sliding puzzle for a quick brain break. Includes a built-in sliding puzzle solver and works on phone, tablet and desktop.

What is a sliding puzzle?

A sliding puzzle is a number sliding puzzle game where tiles are scrambled inside a square frame with one empty slot. You slide adjacent tiles into the empty space, one move at a time, until the numbers read 1 to 15 (for the 4×4 fifteen puzzle) or 1 to 8 (for the 3×3 sliding puzzle). It’s one of the oldest mechanical puzzles in the world and still one of the most satisfying logic puzzles to solve.

How to solve a 3×3 sliding puzzle

  1. Solve the top row first: place 1, then 2, then use the “L-trick” to slide 3 into the top-right corner.
  2. Solve the left column of the middle row (tile 4), then the middle row.
  3. The bottom row solves itself with a final rotation — if it doesn’t, the board is one move from unsolvable, so reshuffle.

How to solve the 15 puzzle (4×4)

  1. Lock the top row (1–4) using the corner trick for the last two tiles.
  2. Lock the second row (5–8) the same way.
  3. Solve the bottom two rows column by column: 9 & 13 together, 10 & 14 together, then rotate 11, 12, 15 into place.

Built-in sliding puzzle solver

Stuck on a scramble? Use the built-in sliding puzzle solver to reveal the next move or auto-solve the whole board. It’s handy for learning the corner trick, checking whether a scramble is actually solvable, and beating tricky in-game sliding puzzles like the Palia Eye of the Storm, Temple of Roots and Return to the Roomsliding puzzles, or the Inscryption sliding puzzle.

Why play the sliding puzzle here?

  • 100% free sliding puzzle game online — no ads-first paywalls, no signup.
  • Switch between 3×3 and 4×4 boards in one click.
  • Move counter and timer for personal best tracking.
  • Keyboard and touch controls — perfect on mobile.

Frequently asked questions

Is this sliding puzzle free?

Yes — every sliding puzzle game on this page is free to play online, forever.

How do I solve a 3×3 sliding puzzle?

Solve the top row, then the left column, then rotate the bottom-right 2×2 until it clicks. If the last three tiles form a 3-cycle you can’t resolve, the scramble is unsolvable and you need to reshuffle.

Can this help with the Palia sliding puzzles?

Yes. The mechanics are the same as the Palia Temple of Roots, Eye of the Storm and Return to the Room sliding puzzles — practice here and the in-game one becomes easy.

Does it work on mobile?

Yes — tap a tile next to the empty slot to slide it. No app install required.