The benefits of puzzles, and of jigsaw puzzles in particular, are things everybody has heard of and few people can source. So here is what researchers have actually measured: what puzzle play was linked to in young children, what scientists found when they trained spatial skills, and what a large diary study found about everyday creativity in adults. We also say plainly where the research stops.
The short version
- In a 2012 study of 53 children observed at home between 26 and 46 months, those who played with puzzles later scored higher on a spatial task. The authors call their findings correlational.
- A meta-analysis of 217 studies found that spatial skills can be improved through training and experience, with an average effect size of 0.47.
- In a 13-day diary study of 658 young adults, more creative activity on one day went with higher well-being the next. It was about creativity in general, not puzzles in particular.
The short answer
Puzzles ask you to look at pieces, imagine how they fit and try again. Researchers have studied that in children and, in a different way, in adults. None of it promises that a puzzle will change your life. What it does show is that puzzle play and spatial thinking go together, that spatial skills are trainable, and that everyday creative activity goes with feeling better the following day.
Where puzzles come from
Wikipedia credits John Spilsbury, a London cartographer and engraver, with commercialising jigsaw puzzles around 1760, using a marquetry saw. Early puzzles were maps mounted on hardwood and cut along national boundaries, sold as “Dissected Maps” for teaching geography. The name “jigsaw” became attached around 1880, when fretsaws became the preferred cutting tool.
The same article says three-dimensional puzzles exist too: “Many are made of wood or styrofoam,” and they must be solved in a particular order, because some pieces will not fit if others are already in place.
Children: what the Levine study measured
The most quoted study on this is “Early puzzle play: a predictor of preschoolers’ spatial transformation skill,” by Susan Levine and colleagues, published in Developmental Psychology in 2012. Here is how it worked:
- 53 parent-child pairs were observed at home six times, between 26 and 46 months of age.
- Puzzle play meant puzzles with individual pieces that interlock to form a whole, and peg-board puzzles also counted. 27 of the 53 children played with at least one puzzle.
- At about 54 months the children did a spatial task that involved mentally transforming 2D shapes.
The result: children who were observed playing with puzzles did better on the task than those who were not, and this held after the researchers accounted for parent education, income and vocabulary. Among the puzzle players, more frequent play went with higher scores. The study also found that boys and girls played with puzzles equally often, but the quality of the play, such as puzzle difficulty and how much parents talked about spatial ideas, was higher for boys.
The limit matters. The authors wrote that “all of our findings are correlational” because the play was spontaneous, and they say whether puzzle play actually builds spatial skill remains an open question. The sample is also small.
Can spatial skills be trained at all?
A different kind of evidence comes from a large review. In 2013, Uttal and colleagues published a meta-analysis in Psychological Bulletin that combined 217 research studies. The average effect of spatial training compared with a control was 0.47 (Hedges’s g, SE 0.04). The abstract also says training effects were stable and not affected by delays before the post-test, and that training transferred to other spatial tasks that were not directly trained.
That is useful context, but notice what it does not say: the review is about spatial training in general, and the part we have quoted does not single out puzzles.
Adults: building, making and well-being
For adults, the best-known study we found is about creativity, not puzzles. In “Everyday creative activity as a path to flourishing,” Tamlin Conner, Colin DeYoung and Paul Silvia asked 658 young adults to keep a diary for 13 days, tracking creative activity, positive and negative affect, and flourishing. Creative activity predicted higher activated positive affect and flourishing the following day. The reverse direction was not supported, and the authors conclude that everyday creativity may help cultivate positive psychological functioning. The study appeared in The Journal of Positive Psychology, volume 13, 2018.
Two honest cautions. The participants were young adults, and the design is a diary, not an experiment. And the summary we read does not mention puzzles, so we are not saying that building a puzzle did this. We are saying that making something yourself is one of the everyday ways people are creative, and that creative days and good days were linked in this research.
Why a 3D wooden puzzle is a different kind of puzzle
A flat jigsaw gives you a picture to match. A 3D wooden puzzle gives you a shape to build. The idea is old. The Soma cube, invented by Piet Hein in 1933, has seven pieces that fit together into a 3×3×3 cube, and Wikipedia says it has 240 distinct solutions. It was even used by psychologist Edward Deci in a 1969 dissertation on motivation. Burr puzzles, made of notched sticks that combine into one three-dimensional unit, are “traditionally made of wood,” and the earliest known record is an engraving from 1698.
What we would pick
If you like the idea of 3D wooden puzzles for adults that end up as something you can display, our DIY miniature houses are a wooden puzzle 3D kit made for exactly that: 14+ projects for teens and adults. Each one comes as pre-cut wood-based board (MDF) pieces that you fit together yourself, with a string of LED lights. The pages list a sanding stick, a screwdriver, stickers and an instruction manual as in the box.
| Kit | Pieces | Built size |
|---|---|---|
| Serendipity Cafe | 143 | 15 × 13.3 × 17 cm |
| Timeless Bakery | 164 | 19 × 13.5 × 14.5 cm |
| Magical Potion Lab | 198 | 18.5 × 13 × 14.2 cm |
For a first one, fewer pieces means a shorter evening: the Serendipity Cafe has 143. The Timeless Bakery is a cut-away bakery room with a counter, stools and shelves of bread, and the Magical Potion Lab has arched shelves, a ladder to an upper gallery and a stained-glass window. Not sure what a book nook is? We explain it in What Is a Book Nook? Miniature House Kits Explained.
One honest note: the studies above did not test our kits, and we make no promise about what building one will do for you. The kits have many small parts and are rated 14+, so keep them away from young children.
Sources
- Early puzzle play: a predictor of preschoolers’ spatial transformation skill, Levine et al., Developmental Psychology 2012 (PMC): 53 parent-child pairs, ages 26–46 months, 27 children played with puzzles, the spatial task at about 54 months, the correlational limit.
- Puzzle play helps boost learning of important math-related skills, University of Chicago News: the study design and that puzzle play predicted spatial skill after accounting for income, education and language input.
- The malleability of spatial skills: a meta-analysis of training studies, Uttal et al., Psychological Bulletin 2013 (PubMed): 217 studies, average effect size 0.47, stable and transferable training effects.
- Everyday creative activity as a path to flourishing, Conner, DeYoung and Silvia, The Journal of Positive Psychology (doi 10.1080/17439760.2016.1257049): 13-day diary, 658 young adults, creative activity predicted next-day positive affect and flourishing.
- Jigsaw puzzle, Wikipedia: Spilsbury and dissected maps, the name from about 1880, 3D puzzles made of wood or styrofoam.
- Soma cube, Wikipedia: Piet Hein, 1933, seven pieces, 240 solutions, Deci’s 1969 dissertation.
- Burr puzzle, Wikipedia: notched sticks, traditionally wood, earliest known record from 1698.
