Grooved 6 Board Burr #1 – Junichi Yananose

The time is here, the mission’s clear. Today I will attempt to solve Juno’s amazing Grooved 6 Board Burr #1.

I purchased this particular puzzle way back in 2018 and have yet to solve it. I’ve toyed with it a few times, but never really put in a good effort. As Juno has continued to release more Grooved 6 Board Burr’s (6 released so far) I thought it was time to finally tackle this one. Assuming things go well, I’m going to move on and try to solve them all (yes, I’ve continued to buy them as they are released) and they’ve all remained on the shelf taunting me. Well, no more! 

Burr #1 is a gorgeous piece of work. It’s made from American Cherry wood with reinforced corners made of Jarrah. The action is smooth, it’s enjoyable to hold and it’s really a wonder to behold – as are all of Juno’s puzzles.

It’s hard to imagine that this simple looking board burr contains so many possible configurations

The description of this one is intimidating. 22 moves to take out the first piece and 4246 assembly options. The big difficulty lies in the grooves and pins. There are grooves routed into many of the boards and correlating pins that travel along the grooves while moving the pieces. This groove and pin system greatly restricts the movement and adds extreme difficulty – especially in assembly. I’m not even going to attempt a blind assembly, my plan is to track all the movements and map things out so that I can reassemble after I’m done.

Let’s get started. 

The puzzle is quite fun to play with. There are two moveable boards to start with, but one of these options quickly hits a dead end. The second option quickly forks to more options and once again one path leads to dead ends, while the other seems to open up more opportunities. Things really get interesting here as the boards slide around and different moves open up even further paths and though it seems like a piece might come out at any minute, I know better than to get too optimistic. These darn grooves and pins prevent the boards from sliding all the way out. 

Seven moves in and I’m stuck. I felt like I was on the correct path, but this feels like a dead end. I must have missed a move somewhere. Time to backup.

Ok, now twelve moves in and stuck again. This is getting quite hard to keep track of. Instead of just one board moving at a time, it is now groups of 2 or three that seem to want to move at the same time. It’s difficult to tell whether these are individual moves or not. Sometimes I think I found a new path only to discover that all I’m doing is reversing the previous move. Things are getting tricky, but I must press on.

Jeez. 15 moves in and I’m sort of back at the beginning – except I’m not. There’s one piece that is now out of place. I’m not sure if this is the correct path or if I’m just circling round and round doing the same moves.

It has just dawned on me that I have no idea what I’m doing. There are pins and grooves and I can see exit points in the grooves, but I’m not really trying to put a specific piece in a specific place, rather, I’m just blindly going down every path possible, hoping that I’ll eventually find the solution. I really don’t know any other way to solve this beast. But I’m currently about 18 moves in and so the end should be near. However, I could be way off on the 18 move thing. Doubt is creeping in as I hit another dead end and have to back up a couple of moves and try a different path.

Not easy to keep track of the moves at this point. Am I progressing forward or just circling around and around?

Aaaand. I need a break. By my count, I’ve completed 32 moves and haven’t removed a piece, so clearly I’m repeating moves and circling around. I’m having a hard time keeping track of what moves take me forward and what moves return me to a previous state. This thing is not easy. There seem to be countless dead ends and the pieces have to be positioned perfectly before moving forward. The puzzle allows you to move forward, but if the pins aren’t in the correct position it just leads to a dead end. This is very tricky indeed and after a solid hour of concentrated focus, I’m going to rest on it and give it another go tomorrow.

Next day and I’m back at it. I’ve taken the puzzle back to the start and am working my way back through the sequence very slowly and carefully, looking for every possible path forward. I’ve clearly missed something along the way and I intend to find it. I also re-read Kevin’s blog post about this puzzle where he specifically says “The true pathway was quite an early divergence from that initial path.” This helpful hint also influenced me to start over and look more carefully.

Ouch. This puzzle has spanked me again! Another fruitless half hour gone as I get more confused. I really thought I’d be able to solve this a little quicker, but I guess not.

And after another hour or so of tinkering, I finally found the move! Wow. I’ve done it. The puzzle has been disassembled. Whew, that was amazing! This truly is a devilish puzzle. I’m amazed at how many deep dead ends there are. Most puzzles that I’ve worked on have much shallower dead ends – it quickly becomes obvious that you are down the wrong path. But, not this puzzle. There are still multiple forks available within the dead end that causes you to keep tinkering, to keep believing that you are right, when in reality, you are dead wrong and the only way to find the real solution is to backtrack 10 moves almost all the way to the beginning. Wow. Just wow.

Yay! I’ve disassembled the puzzle. What an amazing feeling!

I don’t know if I stand any chance of putting this back together. I took dozens of photographs to attempt to keep track of those final moves, but I’m feeling doubtful. Even after the first piece was removed, it still took me a good amount of time to figure out the next piece and it still didn’t get much easier. The final few pieces were stubbornly difficult to remove as well.

In the end, I managed to get it back together without using burr tools. To me, that’s a success. I may have used photos and my written notes, but ultimately, it went back together. It was tricky as there were some moves that I hadn’t tracked very well, but ultimately, I had enough clues to make it work. Whew. I’m exhausted! The bolt of adrenaline from solving the puzzle coupled with the extreme focus required to hold everything together and the mental gymnastics to decipher my notes has left me ready for a nap. 

Notes on the page, colored stickers and coffee are essential ingredients for a difficult solve.
Colored stickers make it easier to identify moves and keep track of what’s what.

Overall, I’m beyond thrilled with this puzzle. It may have taken me 3 years to get it done, but it was well worth it and I will display this one proudly on the shelf. This is truly a masterpiece. Now the only question that remains: Will the other 5 grooved board burrs live up to this one?

Pinned Framed Burr S – Junichi Yananose

Woot! Another Juno puzzle from Pluredro.com! I don’t buy a lot of puzzles from Pluredro, but this one looked unique, so I couldn’t resist.

This is yet another puzzle that I’ve been ignoring for too long. Released back in February 2020, I purchased this puzzle, along with the “L” version. Both have been sitting in a box in the basement awaiting my attention. Well, I’ve been on a puzzling binge lately, so let’s get started!

The construction of this puzzle is very nice. The framed box is super solid and the burr sticks feel substantial. If anything, this puzzle has a rather plain appearance. It doesn’t scream “pick me up!” like other puzzles do. But looks can be deceiving and the real allure of this puzzle is hidden away, out of sight.

There is a nice audible click and clack as I play with the puzzle which is super pleasing. It’s a borderline fidget toy as you can just sit there and watch tv while pleasantly click and clacking away. Every once in a while you find a new move and the piece push further into the frame which is very satisfying and encourages continued exploration.

The objective of this puzzle is to remove the 4 burr sticks. The burr sticks move by pushing on them, but hidden within the puzzle are an unknown number of pins and channels which must be negotiated in order to remove the pieces. The fact that these elements are hidden really adds to the fun and difficulty of this puzzle.

Pieces move in, pieces move out. Am I making progress? I don’t know.

I didn’t know how to approach this puzzle, so I just played with it. I thought about trying to map out the path that the pins follow, but the problem with that is that I can’t see the pins, don’t know how many there are or where they are located. So, mapping seems out of the question.

In the end, I didn’t even try to keep track of things, I just set my mind to removing the burr sticks and proceeded with a semi-reckless determination to just make it happen. And after many hours, I succeeded!

I was sitting on the couch pushing the burr pieces around (most of the time, I didn’t even focus on what I was doing) and suddenly a piece landed in my lap! Whelp, guess I did it!

Pieces removed. Very interesting arrangement of pins and channels for this puzzle!

Removing the rest of the pieces was a little challenging as it turns out some of the pins are offset, so they can only be removed after the first piece comes out. There’s definitely some hidden trickery happening here and it’s very, very interesting to handle these burr sticks and see how they interact with each other inside the frame.

After taking some photos and admiring the craftsmanship, I set to put it back together. Oh boy! I was expecting things to go relatively smoothly, but turns out re-assembly is quite difficult indeed! My first attempt failed. I think I put things together wrong in a way that would never be able to be solved. Some of the pieces moved around and I thought I was putting it back together, but there was one piece that didn’t seem to “engage” the other pieces, so I eventually had to back track, remove the pieces again and start assembly over.

I think I went through this process 3-4 times, spending hours trying to reassemble the puzzle with piece in the wrong place. Eventually, I got fed up with things, pulled all the pieces out and decided I needed to be more systematic. I examined the pieces, how they interact and tried to really understand things to help me better assemble.

I discovered that there were a couple of different ways to insert the burr stick that fell out first. One of the ways lead to dead ends, the other lead to the solution. It was true, I had been doing it wrong, so I tried the second option and things started to go together better. It still took me a couple of hours to get the puzzle back together though!

Wow! what a challenge. I really thought this would be more straightforward and easy, but it proved to be a worthy adversary. I’m quite scared to try the “L” version, as it looks way more complicated, which is scary indeed. Thanks Juno! I enjoyed this one.

Doable 12 – Junichi Yananose

Wooooo boy. This week, I have Doable 12 created by Juno over at Pluredro. This is my Third puzzle from Pluredro and I anticipate that I will be ordering many more over the coming months and years.

Doable 12 is a 12-piece burr that is labeled as “very difficult” – but as the name implies – “Doable” The 12 pieces are constructed of Juno-created plywood comprised of Black Walnut and European Beech. The plywood is then shaped with a CNC router. This results is a beautiful looking puzzle that is incredibly sturdy and pleasing to hold.

My first impression is that the puzzle is quite large. It easily fills two hands. It’s also easy to manipulate. The fitting of the puzzle is intentionally a little loose to prevent grabbing when you manipulate the pieces and I have to say, I think this was a wise choice. There is zero binding or other issues when playing with this puzzle where I think if the tolerances were tighter, it would be very difficult to manipulate.

12 separate pieces of Black Walnut and European Beech make up this wonderful puzzle.

Onward, we go past the descriptions and into the solving process.

This is a puzzle that wants to move! While some puzzles have a tricky opener, this one has multiple moves available straight out of the gate. In fact, I found myself quickly getting lost in the early stages of exploration. There were a few different paths I could go down and each path had further branches and all of them felt like they could keep going. So, for the first half hour, I would cautiously venture down a path and a branch until I was a few moves in and then would back out. I was trying to explore all the options to get my head wrapped around the possibilities.

Eventually, I found a move that seemed to significantly progress things. Once I had the puzzle in this new state, I had a few new options available and the puzzle began to significantly loosen up. I knew I was on the right track, but as things began to loosen up, I began to get nervous. What if I lost my place and couldn’t figure out how to get back to the start? Maybe I’m too conservative when solving puzzles, but I’ve been burned in the past by moving too quickly and then getting lost.

So, back and forth I went. I’d move 9-10 moves in and play around a little bit and then back out again. I’d set the puzzle down, then pick it up and once again progress 9-10 moves in, this time, I’d find an 11th move and then back out. This was my process, but the problem was, I had no idea how many moves it would take to release the first piece. Maybe I was only one move away? But maybe, I was 10 moves away. It felt close, but you never know, so I continued with this solving method.

And then, it happened. The first piece came out! Wow, I was so close for so long, but those nervous thoughts had me backing out over and over. Well, this time, I got it done. One piece removed. I wonder whether this is the beginning or the end…

Ok, well with one piece out, the puzzle is now very loose. I’m trying to delicately move the pieces around to see if anything else is ready to be removed and sure enough, another piece comes out with ease. It seems that the first piece was indeed the lynchpin – once removed, the rest come out with few or no additional moves.

The 12 pieces laid out in a dramatic light

Whew! So now I sit with a pile of pieces and a decision to make. I’m fairly certain that I could put the puzzle back together by retracing my steps (and utilizing a couple of photos I took with my cellphone) However, this puzzle is called doable for a reason. It’s supposed to be doable. That means, I should be able to get it back together without computer or camera aid. So, that’s what I’m going to attempt.

See, the 12 pieces are actually comprised of 6 pairs. The 6 pairs are joined by unique “puzzle-piece” type cuts that make them unique and thus finding the 6 pairs is easy enough. Had these pairs been joined with straight edge cuts, then there would be no possible way to tell what goes together (outside of tedious trial and error) So, at least I have that going for me. The next step is going to be to try to determine how these 6 joined pairs fit together. If I can figure that out, then all that remains is the sequence of events.

The 12 pieces arranged into 6 pairs. Without these unique joining-cuts this puzzle would be infinitely more difficult.

After another couple of hours of work, I’ve had some success and some failure. Through lots of trial and error, I eventually figured out the position of the 6 pairs. The hardest part for me was keeping track of what I had tried and what I hadn’t tried. And attempting to fit together these pieces without the puzzle exploding in my hands or knocking over was challenging. Many times, I’d feel like I was getting close to the solution only to have some pieces slip in my hands which would cause a catastrophic failure. I’d then have to spend a lot of time reconstructing the pieces back to where they were.

Eventually, though, I was sure that I had things correct. I could get 9-10 of the pieces together and could see that the remaining 2-3 pieces would surely fit. However, getting them in place was another story. I tried many times but ultimately failed to put this puzzle together from scratch and gave up.

Defeated in that endeavor, I pulled up some of the photos on my phone and used those as a reference. I eventually got the puzzle back together though the steps were a bit challenging. There are just so many interlocking pieces that it was a difficult to get everything sewn up just right. It almost felt like a coordinated motion puzzle for me in that I wish I had another hand or two to hold things steady. I would guess that if I knew the correct method that things would have done together better.

The completed puzzle. Back together, but not mastered… not yet.

In the end, this is a really fun puzzle. I feel slightly defeated because I didn’t get it together from scratch, but I feel like if I put in enough effort, I could have done it. This one will have to go in the “must revisit” pile for a rainy day.


Sequential Discovery Burred Box – Junichi Yananose

Oh man, I’m so excited. I just received a package in the mail from Pluredro.com and I am now the proud owner of the Sequential Discovery Burred Box! This particular box was announced on social media (as far as I know) and sold out super quick (In 5 days!). I was on vacation at the time, but managed to sneak an order in when inventory was down to only 3 or 4. Well, I’m glad I put in the order, because this puzzle sure looks like fun.

A Quick Warning! – I’ve tried hard not to include any spoilers in my write-up, BUT, if you own this puzzle and haven’t yet solved it, I would avoid reading any further. You have been warned!

The only spoiler-free image I can show! Many secrets hidden inside this puzzle.

I’m going to do a running commentary for this blog post – I’ll write down my thoughts as they come and try to share in the discovery of solving this puzzle (hopefully!) I want to be careful not to post any spoilers, but also want to share the process – the successes, the failures, the frustrations and ultimately, the triumph! Let’s get started.

This puzzle is super unique. It is a sequential puzzle, that also has a small cavity inside. Is it a puzzle box? Is it a burr? Is it sequential? Yes, yes and yes!

My initial impression is that it is pretty big. It is bigger than my hand, and yet despite that, it is surprisingly light. It is hard to believe that there is a sequential puzzle box incorporated into this common 6-burr shape – but we shall see.

My initial inspection doesn’t reveal much. There are no loose pieces rattling around inside and there is not obvious initial move. It feels solid with very little play between the burr pieces. Closer inspection reveals that there aren’t 6 separate burr pieces either – some of them are fused together or made from a single piece of wood. Ok, enough of the examining, its time to start working on it and see what happens!

Wow! Very quickly, I’ve made my first discovery – and it is pretty exciting. That quick rush of adrenaline that spiked up and down my spine is exactly why I love puzzles. Without revealing any spoilers, I can say that this first discovery has revealed some of the puzzle’s interior and also given me access to a “tool” of sorts. I’ll see if I can put that to use…

But before I use the “tool” I’ve discovered that there are now some movements possible that weren’t possible before. And it’s even more exciting because this new movement now opens up some more areas and also unlocks an additional piece. This is really cool stuff and despite my skepticism this puzzle does indeed hide more secrets than seemed possible.

I’ve managed to use the tool and one of the pieces to make another move and now I am stuck. Is the puzzle solved or is there more to it? I fiddle some more and am feeling pretty certain that there is more to do here. There is still another area that I haven’t touched and then I discover there is also another tool to use! I can use the first tool to free the second! I’m having so much fun here!

There aren’t a lot of options left at this point but I still have to try out a couple of alternatives to see what works. Finally, I notice an area that I had not yet utilized and it just so happened to be the exact size to fit one of the other pieces… But I didn’t have things oriented correctly, so had to give it a second try and YES! I’ve done it! One last little trick and I’ve discovered the small cavity and the “Juno” brand! Wow. That was so cool!

One more shot of puzzle. Very clever indeed.

I’m just amazed at how much was packed into this puzzle. True, it’s not a small puzzle, but my first impression was that it would be pretty simple, and in fact it turned out to have many more moves and sequences than I thought it would have. Lesson learned – don’t judge a puzzle my its’ weight!

Overall, this puzzle was delightful. I really, really enjoyed it and hope that Juno makes many more of these types of puzzles – in fact, I may have to purchase one of his puzzle boxes because I enjoyed this so much. While this particular puzzle is no longer available,  its popularity and quick-selling performance makes me confident that there will be more of this type coming in the next year – and I can’t wait!