Joint Puzzle

Game preview: Joint Puzzle

LEVEL1 / 50
MOVES0
HINTS0

Joint Puzzle

TARGET

Tap a joint to fix it. Drag another joint to rebuild the target.

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Sound

Joint Puzzle

Interactive demo

Watch a solution without changing your own puzzle.

How to play

Match the target

Match the colours, bar lengths, shape and orientation in the miniature target. Mirrors and rotated copies do not count. Moving the shape across the surface is allowed.

Fix, then turn

Tap a joint to fix it with a golden clamp. Drag another joint: the entire arm on that side rotates around the clamp. The other arm stays still. Tap the fixed joint to release it or tap a different joint to move the clamp.

Lengths and pillars

Bars keep their individual lengths. Later levels contain pillars; the full path of a turn must stay clear. A blocked turn cannot pass through the pillar, even if its final position would fit. Bars may cross one another.

Watch one helpful movement

Choose Hint and press OK. A marked joint and a slow demonstration show one suitable turn, then your position returns. Sometimes the safe next step is Undo. Hints do not execute moves for you. You can stop a preview at any time.

Your completed shape

Every completed rotation counts as one move; changing the clamp does not. Undo counts as another move. The result shows moves, active time, tips and undos. Replay shows your own solution. There is no required move count or time limit.

Keyboard controls

Focus a joint with Tab. Enter or Space fixes or releases it. Focus another joint and use arrow keys to preview a turn. Enter confirms the full turn as one move; Escape cancels. Switching joints cancels an unfinished preview.

Start again?

Your current attempt will be reset.

SHAPE COMPLETE

Your moves
HINTS
Undos
Time

Leave game?

Do you really want to leave the game and return to the home page?

About Joint Puzzle

Choose what stays still

Tap any coloured joint to hold it with a visible golden clamp. Drag a joint on either side to turn that whole arm. Tap the fixed joint again to release it, or choose a different joint.

Find a way around

Early puzzles introduce short chains. Later levels add different bar lengths and small pillars. Each turn needs a clear path; you cannot move a bar through a pillar. Crossings between bars are allowed.

Build the exact shape

Two introductory puzzles lead into 48 demanding shapes, ordered by increasing complexity. More joints, varied bar lengths and up to four pillars make you plan your turns. A tip previews a safe movement; the finished replay shows your own solution.

Rules, controls and settings

Goal and fixed joints

Rebuild the target with matching colours and orientation. A mirror image or a rotated shape does not count. The position on the surface does not matter. No joint starts fixed: you choose which one to hold.

Tapping fixes one joint with a golden clamp. Tapping it again releases it; tapping a different joint moves the clamp. Dragging a joint before or after the clamp rotates the whole arm on that side. The other side stays still. Turns snap to 45° steps.

Touch and keyboard

Tap to fix, then drag a different joint to rotate its arm. Fixing itself costs no move. With the keyboard, Tab focuses a joint; Enter or Space fixes or releases it. Arrows preview a rotation, Enter confirms it, and Escape cancels the preview.

Movement previews and undo

Choose Hint and press OK to watch a suitable movement. Your actual position and fixing remain unchanged. If you leave the demonstrated route, a hint can show a safe Undo before continuing. Undo counts as a move. After completion, Replay shows your own accepted turns, including undone turns.

Levels and preferences

Levels 1 and 2 remain gentle introductions. From level 3, each puzzle is selected for a higher measured challenge: 6 joints and one pillar in levels 3–12, 7 joints and two pillars in 13–28, then 8 joints with three pillars in 29–40 and four in 41–50. Most angles begin wrong and several direct turns are blocked. Changing a level or restarting asks before replacing an active attempt.

  • Level: 1–50, with four to eight joints and increasing complexity.

Display and sound

The timer is hidden by default. Reduced motion shortens transitions and replaces blinking with a steady mark. Sound and volume are adjustable independently.

Only preferences are saved on this device. Account saves and rankings are not enabled for this game.

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