Sliding Puzzle

Play three 3x3 boards by sliding tiles 1 to 8 into order. Lower move totals are better, and every score is compared with the exact 42-move minimum.

About 2-3 minSpatialNo download, no sign-up

This round measures how you get eight tiles back into order — in moves, not seconds.

Your score is the total moves over three boards; fewer is better.It describes this run, not spatial ability.


  1. Slide tiles into the gap until they read 1 to 8.
  2. Only tiles touching the gap move, one at a time.
  3. Your first move starts the clock. Three boards.
  • Tap the tile you want to move.
  • Swipe: the way you swipe is the way the tile goes.
  • Arrow keys: the direction names where the tile moves, not the gap.

Goal: 1 to 8 in order, gap bottom right.

Three boards · 10 / 14 / 18 moves at best · 2 min each.

First round starts with one practice board, not scored.

How to read your score

ScoreWhat it means
42 to 47 movesA Sliding Puzzle total of 42 to 47 moves across these three 3x3 boards is 0 to 5 moves above the exact 42-move minimum. This is a near-minimum route for this round, not a ranking against other players; compare it with your earlier completed rounds.
48 to 58 movesA Sliding Puzzle total of 48 to 58 moves across these three 3x3 boards is 6 to 16 moves above the exact 42-move minimum. This range describes a route that stayed close to the minimum, not a player ranking; review where solved tiles had to be moved out again.
59 to 75 movesA Sliding Puzzle total of 59 to 75 moves across these three 3x3 boards is 17 to 33 moves above the exact 42-move minimum. This range records several detours in the completed route, not a player ranking; plan each row before moving and compare the next total.
76 to 105 movesA Sliding Puzzle total of 76 to 105 moves across these three 3x3 boards is 34 to 63 moves above the exact 42-move minimum. This range records a route with many reversals or detours, not a player ranking; work in layers so finished sections stay in place.
106 moves or moreA Sliding Puzzle total of 106 moves or more across these three 3x3 boards is at least 64 moves above the exact 42-move minimum. This range describes the route taken in this round, not your ability or rank; use the row-first method and aim to reduce the next total.

These Sliding Puzzle ranges apply only to total moves for this page's three-board round, whose combined minimum is 42 moves. They are descriptive bands, not results from a survey of players, and do not show a ranking. Lower is better; compare completed rounds played under the same rules.

How to play

  1. How do you play the 3x3 sliding puzzle online?: Press Start, then solve or skip the unscored practice board. Select Start the scored round when you are ready to play three boards; each board's clock starts only when you make its first move.
  2. How do you move tiles in an 8-puzzle?: Tap a numbered tile beside the empty square to slide it into the gap. You can also swipe on the board or use an arrow key; the direction always describes the tile's movement, so swipe up moves the tile below the gap upward. Only one adjacent tile moves per input.
  3. How do you finish a 3x3 sliding puzzle?: Arrange 1 to 8 from left to right and top to bottom, leaving the empty square at the bottom right. When a board is solved, its moves and time appear below the grid; solve all three boards to receive a score.
  4. How is a sliding puzzle score calculated?: Your Sliding Puzzle score is the total moves across all three boards, and lower is better. The shortest possible total is 42 moves — 10 plus 14 plus 18 — so extra moves show the length of your detour. Time, moves per minimum move, and time per move are secondary readings.

What this measures

The board is a 3 by 3 grid holding the tiles 1 to 8 and one empty square. A tile can move only into the empty square, which means only the two to four tiles touching it can move at all.

Each scored round has three boards with verified shortest solutions of 10, 14 and 18 moves. Their combined minimum is exactly 42 moves, giving every completed round the same reference point.

Your score is total moves, and lower is better. A move still counts if you immediately reverse it, so plan where the tile and the empty square need to go before you touch the board.

You can study an untouched board without a time penalty because its clock begins on the first move. Once you start moving, keep using the move total as the main result rather than rushing for a faster time.

A common sliding puzzle mistake is placing one tile at a time in the final row and repeatedly dislodging its neighbour. Solve the top row first, then the left column, and treat the remaining 2 by 2 corner as one rotating group.

Tap, swipe and arrow keys follow the same one-tile rule. Swipes and arrow keys name the direction the tile travels, not the direction the empty square travels.

Each board has a two-minute cap. Exceeding it, refreshing, switching away or stopping the round ends that attempt without a score; completed earlier rounds remain available for comparison.

The first-visit practice board starts six moves from solved, has no clock or move score, and can be skipped. A round opened from a shared link uses the same three boards but does not replace your personal best.

FAQ

How do you solve a 3x3 sliding puzzle?

Solve a 3x3 sliding puzzle one layer at a time. Finish the top row, then the left column, then rotate the remaining 2 by 2 corner. Trying to finish the whole grid at once creates detours because placing one tile can dislodge the tile beside it. For the last two positions in a row, arrange both tiles as a pair before rotating them into place.

What does a good Sliding Puzzle score mean?

A good score here stays close to the 42-move minimum. A total of 42 to 47 is 0 to 5 extra moves, while 48 to 58 is 6 to 16 extra moves. These Sliding Puzzle ranges describe route efficiency on this page, not a rank among players, so compare them with your own completed rounds.

How many moves does a 3x3 sliding puzzle take?

A 3x3 puzzle can need 0 to 31 moves by a shortest route. The exact number depends on its starting board. This page removes that uncertainty by using three Sliding Puzzle boards exactly 10, 14 and 18 moves from solved. Their shortest combined route is therefore 42 moves, and your score shows how many moves your route added.

Why are some 3x3 sliding puzzles impossible to solve?

Half of all 3x3 tile arrangements are unsolvable. Their tile order has the wrong parity, a property that legal slides cannot change into the solved pattern, so extra moves never fix the board. Every Sliding Puzzle board on this page is checked for the right parity and then solved by an exact search before it appears, so it is always solvable, and in exactly the number of moves the page says.

How do you get better at 3x3 sliding puzzles?

Practice by planning in layers and comparing move totals. Before the first move, choose a target tile and work out where the empty square must travel to move it. Then learn to rotate three tiles without disturbing a completed row, and compare only full Sliding Puzzle rounds played under the same rules instead of chasing raw speed.

This test is for self-understanding and practice only, not a clinical or intelligence diagnostic tool. It is a non-standardised adaptation of the 8-puzzle; its move totals cannot be used interchangeably with clinical assessment scores.

Last updated: 2026-09-28 · Scores stay on this device