How to solve a sliding picture puzzle

A sliding picture puzzle can be solved as a numbered tile puzzle once you identify where each image piece belongs. The picture puzzle solver loads a completed image, divides it into tiles and lets you manually arrange those tiles to match your scrambled board. It then computes the moves for that arrangement. It is an image sliding puzzle solver with manual piece mapping, not an automatic screenshot reader.

Start from the completed image

Use the game's finished picture, a reference preview or a clear image of the solved board. Select the correct board size before entering the scramble. Press Photo to load a file or use More → Picture puzzle for the image URL and sample options. The image is cropped to a square and divided into equal cells; the gap replaces the final cell in the default target.

The piece numbers come from that completed arrangement, read left to right and top to bottom. On a 3x3 picture, the top row is pieces 1, 2 and 3, the middle row is 4, 5 and 6, and the bottom row is 7, 8 and the gap. On a 4x4 picture, the first row is 1 through 4, and the final row is 13, 14, 15 and the gap.

If your target has its gap somewhere else, use More → Edit goal to set that target. Changing the reference and changing the goal are different actions: the reference defines each piece's identity; the goal defines where it must finish.

Match each scrambled piece by hand

Enable Show numbers on photo in More so the virtual tiles display their identities. Compare distinctive details in the finished image: a building edge, a tree branch, a face or a horizon can help distinguish neighboring pieces. Repeated sky, water or uniform backgrounds may remain ambiguous. The tool cannot infer the missing correspondence from those visual patterns for you.

Use Edit to exchange two virtual pieces until all rows match your real puzzle. Alternatively, make a numbered transcription and enter it through Type numbers. For example, suppose a 3x3 image has the centre piece missing, piece 5 at bottom-centre and piece 8 at bottom-right. The entered rows are:

1 2 3
4 0 6
7 5 8

This arrangement is solved by 5 ↑, 8 ←, a sequence of two single-tile slides. In picture terms, slide the piece belonging to the centre up, then the bottom-centre piece left. Load the numbered arrangement to check the steps. You can upload your own reference image there; its pixels do not change the tile moves.

Why uploading a scrambled screenshot is different

An uploaded image is treated as a source picture to divide into pieces. If you upload a screenshot of an already scrambled board, the tool slices that entire screenshot into a new set of cells. It does not remove the game's borders, read printed numbers, find the blank or reconstruct the original scene.

If a screenshot already has numbered tiles, transcribe those numbers and enter the gap as 0. If it only has pictures, identify the cells against a completed reference before entering them. Without a reliable piece-to-goal mapping, neither the move list nor a solvability result can establish the answer for your original image puzzle.

Check, solve and replay

After mapping the pieces, check that the virtual board really matches every row. A single pair of similar-looking pieces entered in reverse order can produce an impossible-state warning. Revisit those identities and the goal before pressing Fix it: repair changes the entered board instead of interpreting the picture more accurately.

Press Solve for a full move list or reveal one hint at a time. The arrows refer to the numbered tile's direction. Pause the animation after each move and perform that slide in your game; adjust speed when you need more time. You can save the displayed sequence with Copy moves. For 4x4 picture boards, the 4x4 solver page explains how the early answer and subsequent search are labeled.

Image privacy and shared links

Uploaded files stay in the browser. An image loaded from a URL is fetched from its host, so normal network access to that host is required. Some hosts block cross-origin loading; use a local image file you are permitted to use if a URL cannot be loaded.

A shared puzzle link preserves tile positions and the target, but not the uploaded image file. A recipient can follow the numbered arrangement or separately load the same reference. For input rules and arrow notation, see the step-by-step sliding puzzle guide; for an unexpected warning, see why a board may be unsolvable.