Is It OK to Give Up on a Jigsaw Puzzle?

I had been struggling through a large section of flowers and grass, the part of the picture where every piece is green and most of them are lying to me. My sister asked the obvious question: why don't you just quit? I had no good answer. So I went looking for one.

Why walking away feels so wrong

Nobody loses anything by boxing up a half-built puzzle. The pieces are all still there. And yet for a lot of people it feels like a small moral failure. There are three well-studied reasons for that, and none of them is "because I am still enjoying it".

The sunk cost effect. In 1985 the psychologists Hal Arkes and Catherine Blumer sold season tickets to a university theatre and randomly gave some buyers a discount. Everyone got identical tickets to identical plays. Over the first half of the season, the people who had paid full price turned up to more performances. They were not enjoying the plays more; they had simply paid more, and not going felt like waste. Arkes and Blumer connected it to the "do not waste" rule most of us absorb as children.

A puzzle is a pure sunk cost machine. You paid for it, and then you paid again in hours. Four evenings on a sky feels like an investment you are obliged to protect. It is not. Those four evenings are spent whether you finish or not. The only live question is whether the next evening will be a good one.

The pull of the unfinished. You may have heard of the Zeigarnik effect, the claim that we remember unfinished tasks better than finished ones. A 2025 meta-analysis by Ghibellini and Meier pooled decades of experiments and found no reliable memory advantage for unfinished tasks. What it did find was the lesser-known Ovsiankina effect: people interrupted mid-task chose to go back to it about two-thirds of the time, well above chance. The half-built puzzle on the table is not haunting your memory. It is doing something simpler. It is asking to be resumed.

The payoff really is at the end. In a well-known set of experiments, Michael Norton, Daniel Mochon and Dan Ariely found that people value things they build themselves more highly, which they called the IKEA effect. The important detail is the boundary: the extra love only appeared when people completed the build. When they failed to finish, it disappeared. So your instinct is not entirely irrational. A lot of the satisfaction of a puzzle genuinely does arrive with the last piece, which is exactly why quitting at 70% feels like leaving the good part on the table.

What readers worked out a long time ago

Book lovers have argued about this for centuries, and they got to a sensible answer well before the psychologists did.

The American librarian Nancy Pearl gave it a number. Her Rule of 50 says to give a book 50 pages, then ask honestly whether you are enjoying it. If not, stop. If you are over 50, subtract your age from 100 and read that many pages instead, on the grounds that you have less time to waste. She came up with it after a caller to a radio show confessed to feeling guilty about abandoning a book she disliked.

The essayist Tim Parks, writing in The New York Review of Books, went further and questioned whether even good books need finishing. He quoted Schopenhauer's view that life is too short for bad books, and that a few pages are often enough to judge a writer.

Readers themselves agree on why they stop. When Goodreads surveyed its members in 2013, being slow and boring was the top reason for putting a book down, cited by nearly half, well ahead of weak writing. And the most common reason for pushing on anyway had nothing to do with the book. Readers said they just liked to finish things.

That last finding is the whole article in one line. For a large share of people, the drive to complete is stronger than the pleasure of the thing being completed.

What the research says about quitters

The popular story is that winners never quit. The evidence is more interesting than that.

Be careful with how far these stretch. Levitt's volunteers were facing big life decisions, not a jigsaw, and they chose to take part. Nobody has run a randomised trial on abandoned puzzles. But the direction is consistent. People systematically overvalue staying the course, and the ones who handle it best do not just stop. They move on to something else. For a puzzler, that has an obvious translation: the right response to a puzzle you have stopped enjoying is usually another puzzle.

Why a puzzle is not a book

This is where the reading advice needs adjusting, and it matters.

A book that is slow and boring at page 50 is, more often than not, still slow and boring at page 250. The writing does not change. A jigsaw changes as you build it. The hard section of a puzzle is almost always hardest at the start, when you are searching an open field of near-identical pieces. As it fills in, every gap has fewer possible pieces and more finished neighbours to test against. We see this with colour-heavy brands in particular: on a Cloudberries puzzle, the last few hundred pieces go several times faster than the first few hundred.

So the moment you most want to quit a puzzle, deep in the grass or the sky, is often the point just before it starts paying you back. That is the opposite of a bad book.

There is also good evidence that stepping away works. A meta-analysis by Sio and Ormerod pooled the research on incubation, the effect of setting a problem aside before trying again, and found that it genuinely improves solution rates. The benefit was larger after a longer stretch of real effort beforehand, which describes a stalled puzzle exactly.

The pause test: push on, park it, or let it go

There is no established Rule of 50 for jigsaws, so here is ours. It is our opinion rather than research, built from the evidence above and a lot of time at the table.

1. Name the problem. Is it this section, or the whole picture? If you have gone off the image itself, you are bored, not stuck. Skip to step five.
2. Walk away for a couple of days. Not an hour. Leave it on a board or a mat so the work is safe, and come back fresh.
3. Change section. Build out from what you have finished, so you are always pressing into a gap with known edges rather than starting cold in the middle of the grass.
4. Change method. When colour stops helping, sort by shape. Group the pieces by their knob and hole pattern, then try one shape group against one gap. It feels mechanical, and it works.
5. Decide on the next sitting, not the last ten. Ask how you feel about sitting down to it tomorrow. If the honest answer is dread, box it up. The hours already spent are not a reason to spend more.

What to do with a puzzle you have quit

Letting go is easier when the puzzle goes somewhere useful.

• Bag the pieces and keep the box. A complete puzzle is a good gift. An incomplete one is landfill.
• Photograph what you built, if you liked it. The part you did finish was real.
• Pass it on. A friend, a family member, a workplace swap shelf or your local op shop.
• Or keep it for later. Plenty of people abandon a puzzle, come back to it a year on and wonder what the fuss was about.

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