I want to suggest that it would be great if you guys can make a version with a similar shape but with fewer pieces.

They say this is the hardest level and I can confirm that my son who loves brain teasers, is absolutely stumped. The puzzles are high quality and have a great feel in hand. I hope my son doesn't get too frustrated because we still have four more boxes to go. We signed up for the 6 month subscription and highly recommend it to any children who like my son love to solve everything.

I like this puzzle a lot! The puzzle mechanism make sense once you complete the puzzle.

If you enjoy mental challenges, I highly recommend this subscription. I don't usually write reviews but I found this experience to be exciting and mind-blowing. I definitely recommend checking it out.

Great piece! I bought it as a gift to my husband. Very heavy, great quality and nice looking puzzle. My husband is still working on solving the puzzle.

The Notch is a true classic burr puzzle. At first, I was having a hard time putting all the pieces back together. I actually found alternate solutions to the intended ones, so I suppose there are many ways to assemble each version. I would recommend this puzzle to experienced puzzlers, as it involves a lot of thinking.

I got the 6 month subscription for my dad. Now he calls me every time a new puzzle arrives :)

I bought the Cannon puzzle for my dad, and he was so intrigued by it. Although it took him less than 10 minutes to figure it out, it was totally worth the challenge. He now has a cool-looking puzzle to display on his work desk.
Thank you for such a great product!

I got this set as a birthday gift for my son, and he absolutely loves it! The puzzles are really unique and challenging and now he’s eager to have more. It’s wonderful to see him so engaged and enjoying something that truly sparks his interest. :)

We got this as a gift for my nephews, but my kids wanted to try it first and now it’s become our favorite activity at home. I just ordered another set for my nephews and can’t wait to see their excited reactions.

I got it for my son’s birthday (he's in his 30s). I must say, this is the most beautiful puzzle box I've ever seen and what surprised me is that it is all made out of real wood without any coloring just traditional woodworking by a family of artisans from a small village in Japan. I love it and so I'm so happy I found this company.

Stunning board! The craftsmanship is top notch. Definitely recommended.

This one started a bit more difficult than the previous puzzles I'd worked on, but once I realized the "secret" it all came together. Think of this one as picking a lock.

My husband claimed to love ‘the hardest puzzles possible’ but after the first box, he thought it would be better to drop down a level so he could actually solve it! Now we switched to the Explorer which works great for him!

Love this puzzle and the quality! The puzzle is very challenging to assemble since all pieces look alike.