A simple fold can change everything.

Start with the outline

The orange shape is your paper. The green dashed line is the target. Fold until the paper covers that outline in exactly the same place. Matching the outline in a different part of the board does not count.

Easy uses horizontal and vertical creases. Medium and hard add 45-degree diagonals and longer sequences. Every target is generated from legal folds in our own flat, whole-stack paper model.

Pick up, pull over, let go

Drag from one part of the paper toward the place you want it to land. The crease is the perpendicular bisector between your starting and ending points. It snaps to the nearest horizontal, vertical, or 45-degree guide, at eighth-sheet intervals. The preview line shows the crease before you release.

Every layer on the selected side is reflected across the crease. Both sides of the crease must contain paper. You cannot cut, stretch, rotate the whole sheet, or move a single flap independently.

• A short drag is ignored, so accidental taps do not make a fold.
• The green match percentage compares the actual paper silhouette with the target.
• For a three-star result, stay within the displayed fold goal without opening a hint.

Prefer a keyboard? Use precise controls

Open “Precise fold controls” beside or below the board. Choose a crease direction, a guide-line position, and the side to fold. A dashed preview appears on the paper. Press “Make this fold” to submit the move. All three selectors and the button work with a keyboard.

For vertical creases, right means the higher-x side; for horizontal creases, lower means the higher-y side. Diagonal controls use the same coordinate-side rule. If a line misses the paper, we explain the problem and keep your previous state.

Undo, start again, or ask for a hint

Undo removes the last fold before the puzzle is solved. Start again returns to the square while keeping the puzzle and its original start time. Neither action deletes earlier completed results.

Hint reveals the next move in a verified solution when your current sequence follows that solution. If you took a different route, start again to follow the guide. “Use guided fold” applies that exact move. Any hint limits the puzzle to one star, including after a reset.

Three ways to make time for paper

Daily gives you one original target for each of three difficulties. Everyone on the same difficulty has the same daily target. New paper arrives at 00:00 UTC, and there is no time limit for solving a puzzle.

Endless opens a sequence of increasingly complex puzzles. Each solved puzzle adds points immediately, and you can return to your active session in this browser. Practice offers separate easy, medium, and hard sequences. Practice results are saved in your notebook but never enter the leaderboard.

Your stars, your progress

Meet the fold goal without hints for three stars and 300 points. Up to two extra folds earn two stars and 200 points. More extra folds, or any hint, earn one star and 100 points. The goal is a known solution length, not a claim that no shorter solution exists.

An essential cookie connects this browser to an anonymous alias and server-saved records. Refreshing restores your current puzzle instead of awarding points twice. Keep the cookie to keep access; there is no account recovery or cross-device sync.