Jigsaw Puzzle Difficulty Explained: Piece Count, Cut Style, Image Complexity

Several people work together on a large jigsaw puzzle spread across a white table, with loose pieces scattered around the partly finished picture.

The first thing to know is that piece count alone doesn't tell you how difficult a puzzle will be. Just ask anyone who's stared down a 300-piece oceanscape, where every piece is a shade of blue. So what actually determines difficulty? Several things actually, and that’s exactly what we’re here to break down.

Do jigsaw puzzles have official difficulty ratings?

A Ravensburger round animal jigsaw puzzle box resting on a completed puzzle of colourful illustrated animals, including a peacock, zebra and crocodile.

There’s currently no universal difficulty scale or rating for puzzles, but there are other ways that puzzle manufacturers signal difficulty.

Obviously, piece count is one of them. Although it’s not the only factor, you can be quite sure that a 400-piece puzzle is going to be easier than a 40,000-piece puzzle.

The other is age recommendations, particularly helpful if you’re jigsaw shopping for children. The younger the age recommendation, the easier the puzzle is going to be.

And then finally, you can look out for specific features such as extra-large pieces. With these jigsaws, each puzzle piece displays more of the image, which makes it much easier to assemble.

What actually determines puzzle difficulty

Two women sit together on a sofa, smiling as they complete a jigsaw puzzle of a tree with purple blossoms on a round white table.

So if you can’t rely on piece count to tell you how difficult a puzzle is, what can you look out for?

Piece count and size

Piece count is the first part of the puzzle. It can give you a good indication of how long a puzzle is going to take because more pieces mean more sorting and more decisions.

Next up is piece size. As we said, extra-large pieces make puzzling easier, and the opposite is also true. Cut the same size image into 300 pieces versus 500, and the 500-piece version will be harder. Smaller pieces mean less of the image is visible on each one, which makes it harder to tell where any given piece belongs.

Cut style

Then there’s cut style, or the shape of the jigsaw pieces. Different methods create a totally different puzzling experience.

Traditional ribbon cut

This is the cut you already know, even if you didn't know the name. Pieces connect with curved notches (blanks) and rounded tabs, locking together in tidy rows and columns. This means you have straight lines of pieces running horizontally and vertically. It's predictable, and your brain can use piece shape as a shortcut to finding where pieces go, not just the image.

Random cut

Some puzzles break that pattern to make assembly even harder. Pieces get an uneven number of ins and outs, which leaves you with random shapes and connections you can't anticipate. Instead of building in clean rows, you have to assemble little clusters. With so many unique pieces, it also means you rely completely on color, rather than shape, which presents its own challenge (more on this later).

The edge problem

Most people start a puzzle the same way. You find the straight-edged border pieces first, build the frame, and then fill the rest of the picture in. But that only works if the puzzle has a straight edge and four corners. Puzzles with an uneven, irregular, or even circular border require a different strategy, and you’ll have to rely on color and pattern.

Cut quality

Cut quality can change the difficulty of a puzzle a lot, mainly because it's hard to tell if you're on the right track as you assemble. If the puzzle pieces don't click together smoothly, how are you going to know if that section of blue sky you think you've got right is, in fact, right? It can make the whole puzzling experience much more difficult and leave you placing the wrong pieces in the wrong places, throwing off the progress of the whole jigsaw.

Clean-cut pieces solve this. They slot together with a confirming click, so you always know you're on the right track. And Ravensburger puzzles are known for this; our handmade precision cutting tools and Softclick technology make for the most satisfying puzzling experience.

Image complexity

The last piece of the puzzle is the image itself. Even with the same piece count and the same cut style, two puzzles can feel worlds apart in difficulty depending on what's actually printed on them. Here's what to look out for.

Color variation

The more color variation an image has, the easier it is to sort. Bold, distinct colors help you group pieces and quickly narrow down where they belong. Monochrome puzzles or sections, like clear sky, a snowy field, or calm water, make that much harder. You’ll have to focus on changes in tone and texture to help.

The focus of the puzzle

A puzzle with one clear subject is easier than a puzzle with multiple subjects, especially when they are the same color. For example, a portrait of a single dog is much easier than an image with several dogs of the same color. Repeating shapes and patterns make it harder to untangle which pieces go where.

Image quality

Sharp, high-resolution printing makes a real difference to difficulty level too. Blurry, low-contrast, or poor-quality images blur the details you'd normally use to match pieces. The clearer

Piece finish

The finish on a puzzle piece matters more than people expect. A glossy finish can glare under lighting, making it harder to actually see the image on each piece. Glare can make your eyes tired over a long puzzling session too. High-quality puzzles are often finished with anti-glare that softens light reflection. And Ravensburger takes it a step further, only printing on extra-thick cardboard that’s finished with special linen-embossed paper that minimizes reflection and glare.

Tips for choosing the right difficulty for you

A woman sits on a brown leather sofa, focused on assembling a colourful beach-scene jigsaw puzzle on a table, with the puzzle box propped up beside it.

If you're new to puzzling (or puzzling with kids)

Start with a smaller piece count, a traditional ribbon cut, and an image with bold, distinct colors and one clear subject. If you want to make it even easier, look for puzzles with extra-large pieces too.

If you want a relaxing puzzling experience

If you want something that's relaxing but still keeps you interested, go for 1,000 pieces or more with a classic ribbon cut. The predictable piece shape means all the challenge comes from the picture, which you can make harder by choosing a busier image with subtle color shifts and lots of fine detail.

If you’re a puzzle pro

If you've been puzzling for years and want a true test of your puzzling skills, look out for random cuts, irregular borders or minimal color variation. Something from the Ravensburger Krypt range would be perfect. Or of course, you can just go big. There are loads of jigsaws on the market with huge piece counts. We've got a whole collection, each with 7,000 pieces or more.

If you're buying a puzzle as a gift

It's important to think about how much puzzling experience the person has. An experienced puzzler may find a 500-piece scene too easy, while a first-timer might find the same puzzle a struggle. When in doubt, check the image for color variation and a clear subject.

Of course, you could go for something sentimental instead. Custom photo puzzles make for great gifts and come in varying piece counts and piece sizes too, so you can choose one that's not only sentimental but fits the person's puzzling ability too.

So that’s puzzle difficulty explained. It really comes down to how much information each puzzle piece gives you. Traditional cuts make it easy to map out placement, color variation makes it easier to sort, regular straight edges give you a good starting point, and precision-cut gives you the confidence you’re on the right track. Once you understand this, picking a puzzle with just the right amount of challenge becomes much easier. Ready to find your next challenge? Shop all jigsaw puzzles.