Construction from Parts
Put separate pieces together to make the target shape.
Two small pieces, with their orientations already set.
Three puzzles. No time limit.
Select a piece, then tap where its marked square should go. Use every piece once.
Example
An example to explore. No score or practice round is recorded.
Levels are provisional. Levels 1–2 keep the piece orientations; higher levels allow quarter turns. Pieces cannot be flipped.
- Answered
- 0 / 3
- Active time
- 0:00
Build the target shape
Match the shape and its orientation. You can build it anywhere on the board.
Use every piece once. Pieces cannot overlap.
Your pieces
Your construction
Keyboard controls
Ready to check?
Check when your figure is ready. Your first check records this attempt.
One valid construction
Your submitted figure is unchanged above. Pieces can have other valid arrangements that make the same shape.
Practice complete
- Exact figures
- Active construction time
These results describe this practice, not an IQ score.
The practice could not continue
No result was saved. Return to settings to start again.
Optional and off by default. Share starts, completions, replays and error categories. For visits from ChatGPT, starts and completions can also include the first QuickenBrain page and broad country. No answers, drawings or names.
How this data is usedHow to practise
Select a piece from the tray. Its marked square goes on the board square you tap. At Levels 3–8, Turn 90° rotates the selected piece clockwise. Pieces cannot be flipped.
Tap a placed piece to select it, then tap a new square to move it. The previous position stays until a valid move is made. Remove returns it to the tray; Undo restores the last placement change; Reset clears the board.
Match the target shape and its orientation using every piece once. You can build anywhere on the board. Check freezes your construction and shows one valid arrangement. A different arrangement that makes the same shape also counts.
Only completed three-puzzle rounds are saved. Active time pauses while this page is hidden and while you review a checked puzzle.
About this practice
Learn a method
Fit pieces to the outlinePut separate pieces together to make the target shape.
Report a problem
Optional and off by default. Share starts, completions, replays and error categories. For visits from ChatGPT, starts and completions can also include the first QuickenBrain page and broad country. No answers, drawings or names.
How this data is used