We are often asked, "What is the most difficult puzzle?" Well, you've found what is probably the ultimate challenge for those who like their puzzles tough! This puzzle has no pictures, instead it is simply 654 silver pieces, with a circular center and surrounding pieces making the finished jigsaw a plain rectangle. Build it by the shape of the pieces - not for the faint of heart!  Puzzle measures 27" x 20" when complete. Released 2012.

  • Cut from high quality recycle green board, and packaged within a shrink-wrapped box.
  • Strong pieces that won't break.
  • Grained paper ensures a glare-free picture.
  • Ravensburger's cutting perfection results in precision interlocking.

Krypt Silver

4.9 Stars  

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Wish List
Pieces 654
Age Adult
Dimensions 20" x 27" (50 x 70 cm)
Manufacturer Ravensburger
Theme Graphics / Illustration, Monochromatic
Puzzle Type High Difficulty Puzzle, Jigsaw Puzzle
Mfg. Part Number 15964
UPC Number 4005556159642
Item Number 60312
Store Location(s) FG1B3, WE2C3, WF3F3


4.9 Stars  

Submit Your Review!

5 Stars Lori - Mt Laurel, NJ
Quality: Excellent (100%)
Value: Excellent (100%)
Difficulty: Hard
Would Recommend: Yes
Very difficult, but a bit less with the use of the included chart.
5 Stars Howard - Palm Desert, CA 92211
Quality: Excellent (100%)
Value: Good (80%)
Difficulty: Expert
Would Recommend: Yes
This is the most difficult puzzle I have ever seen. I love the challenge and will complete it. The frame alone took 3 hours. The chart must be used.
4 Stars Becki - Pickerington, Ohio
Quality: Good (80%)
Value: Good (80%)
Difficulty: Medium
Would Recommend: Yes
Not difficult, but unique and fun to do.
5 Stars Ed - Lowell In
Quality: Excellent (100%)
Value: Average (60%)
Difficulty: Expert
Would Recommend: Yes
5 Stars Jen d - Nicholasville ky
Quality: Good (80%)
Value: Average (60%)
Difficulty: Extreme
Would Recommend: Yes
It's very hard but that's what I like about it. And I'm not sure if this is considered cheating but I'm having to use the guide, otherwise it would take a lot longer to finish it.
5 Stars Brian - Lincoln, NE
Not too tough if you look at the box. (Otherwise, I'd imagine, nearly impossible.) Overall a very enjoyable and rewarding experience to put together.
5 Stars Leon - Gary, IN
I selected it to be difficult, but it is a gift, so I don't know results. You should dig deeper for MORE DIFFICULT puzzles. I've seen and done some that are not in your collection.
5 Stars Wayne Bodie - Calgary, Alberta
Didn't know what I was getting myself into when I started this puzzle. It's a challenge, but one that is well worth it. It's also Ravensburger so the quality is there. The puzzle also comes with a cheat sheet in case you get stuck.
5 Stars Kayla - Mechanicsburg, PA
Love the puzzle...can wait to put it together.
5 Stars carrie - Algonquin, IL
This puzzle was so hard to do, but so awesome. I had to use the guide to get the shape of the piece, no two pieces are alike. It was so fun to do because it was so challenging. I disassembled it right away, because I definitely want to do it again.