Challenging but like it!
341611
I didn't know what to expect from this DVD but I really like it- It is definitely challenging though!! I had my baby in July and am trying to get back my stomach which is hard!! I didn't know if I would make it through the whole DVD the first time because I was definitely out of shape after the baby- but I pushed through it!
835875
Still working on this one!  So far, it has been much more challenging that I thought.  Pieces are cut traditional style.  It's much harder to figure out the  different than I thought it would be.  Looks fantastic as it's coming together.
522996
I got this for my husband and older boys for Christmas (ages 7 and 9). It is very challenging, even for my husband. It took him awhile to get the hang of it and he is good at that type of thing. He kept saying how hard it is! My 9 year old can do it too but its even more challenging for him. My 7yr old never even tried after watching them. Mostly the kids have loved playing with the gun :)
4491991
Challenging puzzle. But once done it looks great on the wall. Don't forget to frame it.
4337826
This puzzle was a little more challenging than I thought it would be.  Which is a good thing.  If you think that it is easy to discern the colors and patterns, think again.  This puzzle will keep you working on it a little longer to complete it.  Keep Puzzling!
2628609
We are doing this puzzle as I write. I thought for a 500 piece puzzle it would be easy after the 1,000 piece we just finished which took about 3 weeks for 3 of us to do. We have been delightfully surprised!! It has been very nicely challenging in a new sort of way, as the pieces are cut in different shapes than usual, so it is a test of the brain to make new pathways in learning. It is challenging but fun and every chance we get we sit down and work on it.
4040917
This puzzle is difficult.  If you want a challenge, then this is a good choice.  I am on my second attempt at this puzzle.  It doesn't help that we lost 7 pieces, as this puzzle is quite challenging as it is.  All pieces are relatively the same shape and sometimes you think a piece fits, but you have to very carefully look at the colors to see it's not a match.  I am determined to finish (less the missing pieces) and have spent hours working on it.  One key factor is realizing that the puzzle is not the full picture of the actual image shown.  So the actual image has an extra layer of beans around it, and thus looking at the puzzle, you can find the puzzle edge pieces a little in from the border on the picture.  Comparing the two has helped immensely.  The next key thing to getting further was putting together all blue jelly beans, as they stand out in the image.  First I completed as many as I could inside the completed frame, and then separately outside the frame.  I took the completed blue sections and used the image to find where they go and placed them inside the puzzle, either attaching where I could or putting in approximate location.  I will continue with the process using remaining green and then remaining pieces with yellow.  I should have few left when that is done.  I am at least half-way done now and many hours into this puzzle.  I will finish, then toss, because I'm annoyed at having missing pieces.  I am only finishing because I am determined to not let a puzzle get the best of me.
1171153
This puzzle is one of the most difficult puzzles I've ever seen....

It's not Sudoko, and it's not rubik cube..
It's a new type of puzzle which is really intersting and challanging.. I really like it... :)..
If you are clever enough I advice you to try it...

But be careful while you are playing with it.. I recommend to remove one of the corners and put inside the cube some Vaseline, otherwise it might be broken while moving
1816458
Fun, though not easy to win! Have patience, you'll figure it out as you go through a half-dozen times :-)
4634142
This puzzle is really fun. Just difficult enough to make it a challenge. Love the picture.
3627560
Very challenging for me as I am NOT a quick puzzle solver, but I'm not a quitter and I obviously enjoy the challenge so I am happy with the purchase.
2077083
This book is more challenging than I expected, but in a good way.  Really fun and diverse puzzles!
4916448
I like a challenge.  These pieces are abnormally shaped which made this challenging.  Good puzzle.
4264932
This puzzle isn't as fun and easy to manipulate as our other large pegged Melissa and Doug puzzles.  But we still love it.  It definitely helped our 2 yr old get more familiar with her letters and some new words and pictures, too.  The smaller pegs made her use more fine motor than most of her other puzzles.  This initially frustrated her a little bit, but now it's not a problem at all.  It was a good challenge for her.
1381043
Very nice! Challenging, but worth it (especially the lights - gives it an even better look)
2611568
Love, Love, Love, this puzzle! I am a true puzzle connoisseur, and love super challenging puzzles. I can say that this puzzle is very, very challenging. The pieces are a thin plastic and snap together nice and tight. They are also translucent so you can frame and hang it just like a stained glass piece of art. You can actually pick up and hold the puzzle vertically like a Springbok puzzle after it's together. But do it carefully. :o)
3594841
Challenging puzzles that increase in difficulty over the pages. Very stimulating!
If the EASY puzzles are getting boring, try this book. Move on to progressively more
challenging puzzles.