6 Most-Difficult Jigsaw Puzzles for Adults

Jigsaw puzzles can be a very relaxing, enjoyable way to spend time indoors – either alone or with family.

Puzzles are a great hands-on experience that challenge your mind. 

Our family really enjoys setting puzzles together. We especially enjoy the very challenging puzzles. Here is a selection of some of our favorites.

Make sure to read the article “12 Favorite Non-Standard Jigsaw Puzzles for Adults” for even more challenging puzzles, and for a bunch of helpful tips, tricks, and ideas.

I only write about things I have or love – and I’m sharing them with you because maybe you’ll love them, too. The links in this post may contain affiliate links. I’ll receive a small commission (at no expense to you) if you make a purchase after clicking on my link. 

Ravensburger Krypt Puzzle (Black)

If you’re looking for a serious puzzle challenge, you have to try the Krypt puzzle by Ravensburger. This all black puzzle has a spiral shape and includes a variety of oddly shaped pieces – no two are alike. There is a pattern to this puzzle, making it very unique and fun to put together.

There is a similar Krypt puzzle available in Gold as well.

Puzzle Details: 736 pieces (no two are the same shape), 20″ x 27″ finished size

The Lines Puzzle

The Lines Puzzle is a very challenging puzzle! Each piece of the puzzle has a variety of lines on them, all in different directions. When the puzzle is assembled, it is actually quite beautiful – you might want to save it and frame it! If you need a few tips, the backs of the pieces have a grid pattern labels with letters. This helps you determine the orientation of the piece in the puzzle, as well as what section the piece belongs. But we really encourage you not to look at the clues!

Puzzle Details: 1,000 pieces, 24″ x 24″ finished size

Micro Pure White Hell Jigsaw Puzzle

This puzzle has two things about it that make it especially challenging – the small, micro pieces (they are about 1/2″ in size), and the fact that all the pieces are white! It definitely is a White Hell Puzzle! We haven’t worked on this puzzle yet, but I am looking forward to it.

Puzzle Details: 1,000 micro pieces, approximately 15″ x 10-1/4″ finished size

Gradient Puzzle

This Gradient Puzzle is definitely a fun puzzle! While this puzzle isn’t quite as difficult as the others in this article, this one is tricky enough. The subtle changes in color make it a bit easier to put together. When the puzzle is done, it would look nice framed and hung on a wall as a piece of art. 

Puzzle Details: 1,000 pieces, approximately 27″ x 19-1/3″ finished size

Clear Puzzle

This Clear Acrylic Puzzle is a fun challenge. The pieces are 3/4″ and are made of acrylic. Because the pieces are clear, you have no idea which side is ‘up’ or ‘down’ and this adds to the challenge. This puzzle might take some time to assemble, it really is challenging!

Puzzle Details: 150 pieces, 10″ x 15″ finished size

5000 Gradient Colors Jigsaw Puzzle

If you really want to splurge on a puzzle, check out this 5000 Gradient Colors puzzle! This 5,000 piece puzzle is made up of CMYK gradient colors. Each piece is a different color. You’ll definitely need a dedicated space to assemble this puzzle, as it’s likely to take you weeks (or months) to complete. But just imagine the satisfaction you’ll feel when you’ve finished the puzzle! Pure genius!

Not quite up for a 5,000 piece challenge? This same puzzle is available in a 1,000 piece version – the 1000 Gradient Colors Puzzle.

Puzzle Details: 5,000 pieces, approximately 60″ x 39-3/4″ finished size

Do you have a favorite, challenging jigsaw puzzle? Share in a comment below!

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