Shape assembly
Study the pieces. Choose the shape they can make together.
Continue your unfinished round
Your answers are saved in this tab. Continue from where you left off.
Continuing uses no additional practice start.
Discard the unfinished round?
Your answers from this round will be discarded. You can choose your settings before starting a new round.
Starting the new round uses one practice start.
Example
Example
Start to get six puzzles.
Combine three pieces
6 questions · No time limit
Your last settings are ready. Change them whenever you like.
- Questions answered
- 0 / 6
- Active time
- 0:00
Which shape can these pieces make?
Use every piece once. You may turn pieces, but not flip or overlap them.
Start to get six puzzles.
Explore the method
Rotate pieces and check whether they can fill an outline without gaps or overlap.
On by default unless you turn it off. Saved choices are kept. Shares starts, completions, replays and error categories. For ChatGPT visits, starts and completions may include the first QuickenBrain page and country. No answers, drawings or names.
How this data is usedHelp
Study two, three, or four numbered pieces. Choose the one outline they can fill. Use every piece once; turning is allowed, flipping and overlapping are not.
Your answer locks when selected. The correct assembly appears with the same piece numbers and colors. Compare the boundaries, then choose Next question when ready.
All five outlines have the same area. Compare corners and edges, not just size. Pieces shown together use the same scale; the answer drawings are resized to fit their spaces.
Finish all six questions to save a result on this browser. Leaving early saves no completed round. Active time counts only while this page is in the foreground; there is no time limit or speed bonus.
Use Tab and Enter or Space to select a shape. Keys 1–5 also select shapes while answering, except when another control is focused. This is a visual practice; the figures require sight.
About this practice
Learn a method
Fit pieces togetherStudy the pieces. Choose the shape they can make together.
Report a problem
On by default unless you turn it off. Saved choices are kept. Shares starts, completions, replays and error categories. For ChatGPT visits, starts and completions may include the first QuickenBrain page and country. No answers, drawings or names.
How this data is used