Showing posts with label Sequential Movement puzzle. Show all posts
Showing posts with label Sequential Movement puzzle. Show all posts

Sunday, 28 June 2026

Have I Been Scroo'd?

Even Ice Cream Doesn't Help!

Cooby Scroo from Andreas Roever
My car when I got out of work!
Most of you are aware that there's been a bit of a heatwave in Europe recently! It started whilst I was in Italy for the IPP and then hit with a vengeance when I returned home. The UK is uniquely unprepared for high temperatures despite the fact that we have had them for the last few years. Our houses retain heat (they are built for cold winters) and it feels like hell inside (most of my house was 29-33ºC for the last week and my back garden, being south-facing reached 48ºC for long periods of time). During all of this I have been sick with the lurgy that I caught on the plane and feeling like death warmed-up! The only thing that could possibly make it worse would be to share that hellish space with a "woman of a certain age". As a result of the conditions at home, both physical and psychological, and despite being sick as a dog, I was grateful to go and work in an operating theatre with air-con bringing the temp down to 18ºC. I went from boiling sweaty hot to freezing my nuts off back to boiling again.

As a result of this my puzzling skills were even more sub-par than usual!

Nicely presented with a bag and a card
The Cooby Scroo puzzle had been Andreas Roever's exchange puzzle last year in Tokyo. It was brought to my attention at an MPP afterwards when a couple of people were showing it off and extolling the virtues of such a simple idea, so beautifully created. I even had a play with it and marvelled at the incredibly confusing movement and how it came apart easily but was impossible for me to put back together. This was going to be brilliant - tempted...

When a few people placed it in their top 3 puzzles of the year at Peter Hajek's end of year puzzle party, I broke and contacted Andreas for a copy and arranged to pick it up in Italy.

I got a choice of colours when I picked it up and chose a lovely blue, grey, black and white combo.

When I got home and having taken some photos to show off how it moves, I shied away from actually dismantling it for fear of failure yet again.
One pair moved
Second move possible and it gets scary
I showed it off at work and after getting an appropriate "Oh my God!" response. I stopped playing and put it away again. I did the two beautiful moves again and again at home, trying to make myself familiar and comfortable with the conformational changes and eventually I was holding it slightly wrong and it fell apart on me....Aargh! I should have known that would happen eventually.
This might be how it remains!
I recalled how impossible it had been for me at the MPP and I quailed at the thought of getting it back together. It is relatively easy to make pairs or even a trio of pieces:
This should do it - he hopes
This looks great but isn't helpful!
Over the last few days, in the blistering heat with an angry hot woman in the background, whilst feeling like death, I have repeatedly attempted to reassemble this bloody thing! It shouldn't be this difficult! It's only 4 pieces and has only 2 main moves but you mustn't forget how bad I am at puzzles. Yesterday evening whilst muttering to myself and considering femicide as a way to get a little relief, I suddenly managed to get it together. OMG! The relief! Did I dare take it apart again? Not straight away... I needed to relax a little and then try and redo it slowly.

Today, I can now disassemble and reassemble it to order. I can see why so many people loved it. This puzzle is an absolute masterpiece of good design. All we need is for someone to make it in wood (I guess that might be nearly impossible) or possibly make it in brass. Steve or Ali - what do you think? Maybe a collaboration with Andreas might be in order?



Gelateria from Alexander Magyarics

Gelateria - Alexander Magyarics' exchange puzzle in Italy
During a heatwave, there is nothing better than a fabulous refreshing cool Gelato. I thought that attempting the Gelateria puzzle might be refreshing for me. Yes, I was wrong!

Alexander was a "greenhorn" at this IPP and previously they have not been allowed to exchange. This year the committee made a change to the rules and newbies were allowed to do so if they created their own design. Alexander has quite rightfully earned his place attending an IPP due to the HUGE number of amazing puzzle designs he has created over the last few years. You can tell that they are really really good when craftsmen like Brian Menold and Jakub Dvorak use the designs to produce gorgeous wood creations. I have reviewed quite a lot of his designs over the last few years and it was simply amazing to meet him in the flesh after such a long time. Unfortunately, we were both so busy that we didn't really have much time to chat and properly catch up. Whilst I was assisting Jerry Loo in his exchange, I saw Alexander's puzzle and decided that it looked a lot of fun and determined to obtain a copy at the main puzzle party the following day. 

Just a few challenges!
Alexander is a "completionist" - he finds a simple design, modifies it to add extra complexity and then looks for as many associated challenges as possible. I have quite a lot of these in my collection and I am absolutely terrible at solving them. Maybe this would be better? It is at its heart a tetromino tray packing puzzle. We have all played with these as kids - I know I used to play with one belonging to my older cousin when I was about 8 - I loved it. The 5x8 voxel tray can be fitted with 10 tetrominoes in many ways - that is easy. Alexander has created a LOT of challenges (the sheet has 48!) to decrease the options and make it MUCH tougher. The tray has holes in it and you re provided with a set of black blockers that can be inserted into it. The tetrominoes are now restricted where they can be placed because they must straddle the blocker. To get you used to it, he gives a couple of challenges with 8 solutions, 3 with 4, 1 with 3 and 9 with 2. All the rest have just 1 possible solution. 

8 possible solutions - easy?
Hell, NO!
I also took this to work and during a rather long boring orthopaedic operation (after 4 hours and no end in sight, I needed something else to think about), Colin and I set to work on one of the 8 solution challenges. 

This is really REALLY difficult! Neither of us were able to solve it in about an hour of attempts. I have been trying at home in the heat and still cannot get it. I need a way to think about these challenges. There must be a logical way to work it out but I am seriously struggling to get my little bwain around it. 
I appear to have Scroo'd by Alexander as well! Maybe I need another hobby? Whack! Ouch!

If you get a chance to buy a copy then you should absolutely do so. There are so many challenges and they are so approachable even if they are impossible. Alexander's puzzles are sold by PuzzleMaster, by Tye Stahly and possibly by Alexander himself via Facebook or Instagram. Drop him a line. He is delightful to chat to and his puzzles are amazing. 

I have not yet tried the One Way or Another puzzle which won a Jury honourable mention prize in the IPP design competition. That is quite a feat!



Sunday, 15 March 2026

Zese Are Not For Ze Faint-Hearted

Minima-Ze Series by Frederic Boucher
Produced by Pelikan
Damn! I never thought I would say it, but I wish we hadn't had a sunny day yesterday! The UK has basically had rain almost every day for the whole year so far and it has been thoroughly miserable. But, you all know that us Brits love to discuss and complain about the weather. The garden has been growing wild due to all the rain and the rapid approach of spring. So yesterday, when the forecast was good, I was ousted from the house by "she who frightens even the Gods" and given instructions to tidy up the garden. After 6 hours, I was allowed back in the house and knew that pain was coming. I was not expecting it to be mental as well as physical pain. This morning I awoke with pain - everywhere. Absolutely everywhere. My fingers hurt, my thighs hurt, my shoulders hurt. I hate gardening! The garden looks great but I am in too much pain tp appreciate it! Little did I know that I would add brain pain would be rapidly added to the collection of aches.

I received a nice big box of puzzles from Jakub, Jaroslav and team on Monday and after unpacking, I had to put them away for a few days due to work. The presence of ball bearings bouncing around in an operating theatre is not a good idea so I daren't take them to work. I finally got to investigate on Friday and unfortunately wasn't allowed to play yesterday due to fear of reprisals if I didn't get into the garden. As a result today I have started work on the Minima-Ze series by Frederic Boucher.

These are an interesting variant of his Minima puzzles with a totally different aim.These are not packing puzzles...they should be classified as either Maze puzzles or sequential movement puzzles. The aim is to either remove the/one of the ball bearings that is trapped inside the usual 2x2x3 box or, in the case of Minima-Ze Rally, to run the ball bearing through the maze from entry in one side and and exit on the other.

These diminutive puzzles are perfectly pocket sized and can be carried about without worrying about losing a ball bearing. However once you have started you probably need to be careful because loss is a distinct possibility.

Minima-Ze 1

Minima-Ze (1)
Number one in the series has been made using Leopardwood for the box and Acacia for the pieces. A blue marble is visible in the hole in the top. There is another smaller white marble just visible to the right of it. The aim is to manipulate the pieces to allow the removal of the white ball bearing via the exit hole at the front. Should be easy? Hmm! maybe for you it might be but I struggled. There are two square holes to facilitate movement of the wooden blocks (none of which can be removed) and there is a slot in base which serves no there purpose other than too allow the puzzler to examine the shape of the pieces that are being slid around. After a few minutes of fiddling a couple of oddities can be discerned. It is obviously going to be key to work out what those "oddities" are there for. 

Being a bear of very little brains who was hurting all over, my thought capacity was at a rather low ebb. I am embarrassed to say that it took me well over an hour to realise what was required and actually carry out the required moves. A ball fell out much to the alarming interest of a cat. I retrieved it as quickly as I could before someone swallowed it.

I'm sure it shouldn't have taken me over an hour!
Returning it to the start was another challenge. I was able to place the balls back inside but the once I thought I had them back inside, I either couldn't slide the wooden blocks back inside or the balls were in the wrong order. Another 10 minutes required to get the dexterity to do what was needed. Lovely clever challenge and a nice warm-up for the others in the series.

Minima-Ze 2

Minima-Ze 2
This one is made by Pelikan using Mahogany for the box and Garapa for the blocks. Inside, there is a single ball bearing visible through a hole in the base. The aim here is to manipulate the pieces and navigate that ball bearing through the maze and out through one of the holes in the front. It's not clear at first how this is going to work nor which hole is the exit.

Rocking it back and forth reveals that internal pieces slide around and at one point one of the pieces covering a hole pokes out and has a drilled hole in it. Aha! This would imply that there is a moving path inside the pieces trapped inside and the aim is to work out where the holes are, how they can be manipulated into a pathway and then how to get the ball bearing through it. 

Simple? Ha! Many years ago, I spent months working through the variable mazes inside the Revomaze puzzles and it took me months and months to solve them. I hate to say it but this may happen to me again. So far I have worked out how some parts move but it's very difficult to understand what's happening inside as there is minimal visibility. I have spent a good ½ hour with the ball bearing lost inside somewhere with no idea where it went and absolutely no idea how to return back to the beginning. Shaking it about is no use here! Somehow I have got it back to the start with little idea how. This is a frightening little puzzle and will require a lot of thought in a silent room. I think listening as you go is going to be quite important here.

Minima-Ze 3

Minima-Ze 3
Number 3 in the series has a Limba box and Wenge pieces. It looks rather complex by the presence of a full circumferential belt of holes which are there to help you control the pieces by squeezing fingertips through to prevent parts from moving when you don't want them to. Again, the aim is to remove the silver ball bearing from the puzzle (it is visible through a very small hole in the back wall of the box). 

The clue to the presence of a drilled pathway comes when you manipulate the internal pieces to find that the single piece covering the square hole pokes out with a cavity in it, obviously to deliver the ball bearing to you. There is no other part of the internal maze visible inside and you are expected to build an internal visualisation of the maze by listening to the pieces move and using gravity to control the movement of pieces and ball whilst using your fingers to control which blocks can move.

For 2 hours today I have been playing with this and the ball was lost inside. I had no idea where it was and could not return it back to the beginning. Panic began to set in. Time to put it down and think©. That didn't work for me so I fiddled with it blindly and returned it to the beginning. After the palpitations had settled, I tried again and suddenly the ball was out. 

Solved it - not sure how!
Having taken the photo of it, I now have to return it to the beginning and I am not entirely sure how to go about it. I think I will need to draw a picture of the shapes and where I think the holes/paths might be. 

These are beautiful puzzles and terrific challenges. they are NOT for the faint-hearted! These will keep you challenged for quite some time, require a lot of thought and a very good 3D visuospatial ability to understand and solve.

Minima-Ze Rally

Pelikan version
Nothing yet designs version
I have not yet had time to play with this one. It was also available from Tye Stahly's Nothing Yet Designs store (almost everything seems to be available from him) and maybe if you badger him, it might be available again. I haven't gotten around to it yet but my backlog is out of control just now. I need a long holiday with no gardening to do or even to retire to catch up.



What else will be available at the next update? I should have reviews ready for next week for you.

The secret of two friends - a design by the Pelikan team - beautifully made from Oak (here) or "sub-fossil" oak

Shrine by Lucie Pauwels - made from Bubinga and Acacia

Diasafe by Lucie Pauwels made from Wenge and Pink Oak

Thyor by Dr Volker Latussekmade from Padua, Maple and Wenge



Sunday, 30 November 2025

What A Mammoth N-ary Effort!

Brass side
Steel side with monkey
The Blind Panic puzzle was Ali's IPP exchange. I received a copy at the MPP
It ooks and feels wonderful and is effectively a Panex (with one difference discussed later).
First of all, a little note to inform you that the OPUP remains packed and the Dovetail bar 2 remains a single piece! maybe I need another hobby?

I am having to work this weekend yet again and so only have a quick update on last week's challenge. I do maintain that I definitely am an eejit! I decided to finally work on the two puzzles that I own that are effectively Panex puzzles. I had thought for a while that the Panex was a "simple" N-ary puzzle and it "just" needed me to work out the pattern and then slog through.

Damn! That wasn't very bright! I should have realised that any so called N-ary puzzle that is more complex than the basic Chinese rings is not necessarily going to be straightforward. The clue should have come from the incredible puzzles sent to me by Aaron Wang over the years. I don't buy everything he has to sell because a. I can't really afford to buy them all and 2. some of them look impossible for human beings to solve! However, I have bought quite a few of his fancy N-ary designs and have solved very very few of them! Even the ones that are "just" N-ary have some very complex sequences that I often seem to get lost in and most of them remain unsolved and in my pile of puzzles reminding me of how rubbish I am at puzzling and, more importantly and dangerously, they are annoying Mrs S and tempting the cats into string swallowing. 😱

Street Lamp
Golden Gate Bridge
Both of these were bought last summer and both have ended up with me completely stuck.Thank heavens for the quick reset that Aaron installed. This should remind the unwary puzzler that many N-ary puzzles have rather a lot more to them than one might expect.

The Bell
Unsolved for several years!
How does that relate to the Panex? Well, I am not certain but I think the Panex is sort of N-ary but with patterns within patterns and the challenge is to find an approach in stages. It is not a simple thing to do and took me a week to complete a level 5 version. The Bell from Siebenstein Spiele is a very similar puzzle but has the advantage that the 3rd column is visible. I decided to solve the two puzzles in stages side by side. I started on the level 3 solve. It is trivial to move 3 disks from one arm to the empty arm like a Tower of Hanoi puzzle and then move the ano0ther one to where they came from:
⅔ of the way
Done it!
This was done fairly trivially on the Bell and then also on the Blind Panic. Success! I think must have taken me about 60 moves. Time to move to level 4 and OMG! it was not trivial. It can no longer be solved by using simple Tower of Hanoi sequences.

The first sequence is Tower of Hanoi and transfers one arm to the gap
It looks as if being able to do the sequence above is possible then all that is required is to do it again with the dark set of disks. But and it's an enormous BUT the way the Bell and Panex is constructed requires to use the top pathway as temporary storage as the disks are slid from one leg to the other. The problem when attempting a level 4 is that having moved the first sequence across to the middle leg the temporary storage that would be used is above that middle leg and it subsequently blocks movement of disks across the top to the other leg. It took me absolutely ages to realise that the Tower of Hanoi approach is impossible with this puzzle. The interesting thing with Ali's Blind Panic is that the path at the top of the puzzle is circular and also that the temporary storage is above the pile of pieces in an arm and not in the top path! 

This end result of this is that the two puzzles are not actually the same. They are almost equivalent but the crucial difference makes the Blind Panic much more approachable and more like a multi-layer  Hanoi puzzle. After a couple of days of play I solved the level 4 on the Bell and convinced myself I had a reasonable approach. A level 4 Panex should take 174 moves - I must have been several times that many:

Level 4 solved - this almost killed me!
Time to strat on the level 5 Bell and simultaneously solve the Blind Panic. It was more of the same but to me did not feel very logical. It took me a lot of back and forth, getting it wrong and starting again. I did the Blind Panic at the same time. My hands were rather sore but the end of another few days of work:
Level 5 solved!
Brass above the monkey
Apparently the level 5 Panex takes 461 moves as a minimum to solve but for me it must have been thousands and thousands as I made mistakes and had to backtrack or got lost and had to start sections again. I was mentally and physically exhausted after doing that and despite being elated, I have absolutely no plan to undo it and go back to the beginning using the same approach - I think it would kill me! The Bell puzzle can be unscrewed and this is exactly what I will be doing! Then there is the thought of completing the entire Bell puzzle (level 6) - OMG! NO! It should take a minimum of 1170 moves but I suspect it would be 10's of thousands for me and most of the rest of my remaining hair and my life! I'm afraid that the final solution to the Bell will never happen.

There has been quite a lot of mathematical analysis on the minimum number of moves that are required to solve the Panex puzzle and I don't really understand any of it. I do know that it is a LOT more moves than you would expect and the logic is really not obvious! Have a look at the papers linked from Nick Baxter's site - I did and it didn't help me much at all! 🤣

What about resetting the Blind Panic puzzle? There is a screw on top which I suspect can be undone and the puzzle pieces removed and replaced back in the start position. BUT, I am fairly convinced that that a simple Tower of Hanoi approach is possible for this puzzle because of the circular top pathway and the extra storage position in the top of each column. I am going to work on that for the next day or so and will report back to you next week!

Wish me luck!



Sunday, 23 November 2025

OMG! What Have I Done?

Brass side
Steel side with monkey
I'm an eejit! I've said it many times here and a certain woman within arms length of me tells me it at regular intervals! Why this time? I have just noticed that after my week off, I had put myself down to work 5 weekends in a row! 😱 As a consequence I have been desperately trying to solve something for today and am struggling.

I failed yet again to unpack the OPUP (have I been given the one that doesn't unpack??? and then also been trying to slide the Dovetail bar 2 apart and over a whole week of effort at work I have managed absolutely nothing. 

I then decided to try the Blind Panic puzzle from Ali (it was his exchange puzzle at the IPP). What is it I hear you ask? These voices in my head are getting quite troublesome! You can depend on the Two Brass Monkeys to create something very special - it's a Panex in 3D cylindrical form with a hidden reserve column. It "only" has 10 pieces to swap over so should be "easy"? Oh hell no! I had been at it for days and realised that I needed to do it in tandem with a version that I could see everything. The Bell was a Siebenstein puzzle that I bought from Hendrik many years ago when I found that the original Panex puzzles always sold for an exorbitant sum. I had thought it was an N-ary puzzle on playing with it, I realised that there was far more to it than that. I never solved it!

The Bell - also a Panex puzzle
For some stupid reason, I had forgotten that and set to work on Ali's version which was only level 5. The aim was to move the 5 brass pieces to the column above the monkey (hence achieving a figurative brass monkey and the steel pieces to the other column. I have been working on them level by level for a week.

It has unfortunately gotten too late for me to write much more but I think I have a process worked out. Sigh! I need more time.




Sunday, 12 October 2025

Probably The Toughest Pelikans Ever!

Upcoming puzzles from Pelikan
10 days ago, I received the latest batch due to come out from Jakub, Jaroslav, Simona and the team and managed to solve just one of them (Petit Albert) in the time to review it for last Sunday's blog post. Since then, I have been slogging away at them to try and have something to help you decide what to buy when they come out. I suspect it will be later this week. The amazing bunch is from a very talented bunch of designers:

Social Distance Soma Cube by Lucie Pauwels
Antislide 2L by Lucie Pauwels
Smuggler by Lucie Pauwels
Out of Center by Alfons Eyckmans
Minima 2nd Drawer by Frederic Boucher
Apotheca by Dr Volker Latussek
Slider H by Benjamin Heidt
Petit Albert by Dr Volker Latussek (reviewed last week)


Social Distance Soma Cube

Social Distance Soma Cube
I couldn't resist starting with this one - it is simply gorgeous! My version is made from Purpleheart and Maple and I am told that there will also be versions with Bubinga and Maple as well as Wenge and Maple. A very nice playable size at 78mm in each dimension. It arrives assembled in the cube shape but don't fret about the solution being given away. Tip it out of the packaging and it will quickly fall apart into the constituent pieces:

OMG! Not JUST a Soma cube!
Lucie has taken the Soma cube and separated the 27 individual voxels by a bridging piece. Taking it apart reveals that the constituent parts are still the standard Soma shapes but you can see that the bridges appear to be in specific places on each piece. As usual, the challenge is to assemble the puzzle into the standard cube again (I do wonder whether any of the other Soma challenges are possible as well and I may well attempt to put these into Burrtools to see if that is the case. The cube shape of the Soma cube has 240 solutions but the version designed by Lucie has just one.

I am terrible at assembly puzzles and do not expect to solve this any time soon without help from Burrtools. It is still a very compulsive puzzle and I couldn't stop trying as many assemblies as I could find. My problem is keeping track of what I have tried. Given more time I think that the placement of the bridging pieces will allow a more logical approach but I haven't found it yet.

This is well worth buying - it is beautiful, very difficult and compulsively addictive.

AntiSlide 2L

AntiSlide 2L
Another compulsively beautiful puzzle design from Lucie Pauwels. This one will join the others in her series of tray packing puzzles with anti-slide challenges (Minimal Frame, Open Frame and Trimini Frame).They are all wonderful challenges with effectively 2 levels to the puzzling. First of all take all the pieces and pack them into the tray - the fun thing with this one is that it is now a 3D packing puzzle and you need to form 2 layers on the tray and then second, much MUCH more difficult, the assembly needs to be made in such a way a way that the pieces cannot slide out sideways if turned on its' side.

This is a nice pocketable puzzle with a tray that is 6cm square and has just 2 retaining cubies in opposite corners and the pieces are all made from various attractive woods. This one accompanied me to work for a day or so and kept several people amused. Even finding one assembly is tough. It took me several hours before one was found and of course, it wasn't the anti-slide solution. The presence of an L shaped piece makes that challenge very tough. Placing the pieces into Burrtools reveals that there are 41 assemblies. It took a careful trawl of the 41 solutions before I found the correct solution.

NOT the final solution - just one I found on the way!

Smuggler

Smuggler by Lucie Pauwels
As delivered it doesn't look like much!
This lovely puzzle from Lucie Pauwels looks very straightforward when delivered. Just a tray packing puzzle with some very attractive pieces made from Ovangkol to be packed into a standard Maple tray. It is a lovely size to play with at a table (11.5cm across in a 3 layer deep tray). Only when you look at the pieces closely do you realise that there is something odd about some of them - they are 3 layers high and when they are looked at from a particular direction, there seems to be notches in them each of which is a single vowel in size. There are 8 pieces each having 1 voxel missing and then four 2 voxel bars to be inserted alongside them. Tipping the pieces out of the tray reveals the full extent of Lucie's madness and what is going to be required:

Interesting tray packing pieces with 4 "gold" bars to hide
This was the easy bit
Now we understand the name. Smugglers have often buried their treasure to keep it away from competitors and the authorities so that they can come back to it at a later date. Here we need to place all the pieces in the tray so that they lie flush with the edges. Then we need to find a way to repeat it but with the gold bars inside and hidden. To do this will require solving the packing with the notches in the middle layer to be organised so that they line up with 4 2x1 voxel gaps.

I first of all set to work on just the main pieces and ignored the gold bars. I found quite a few assemblies for this and, after playing with Burrtools, discovered that there are 168 ways to do this. I then worked on adding first one and them progressively more of the bars. Placing just one was relatively trivial once a packing for the main pieces had been found. Placing a second one, at least for me, did not seem much tougher. I have been trying to assemble the packed tray with 3 of the 4 bars now for a day or so and have so far failed. I am sure there is some logic to it but I haven't yet worked it out. Burrtools tells me there are 30 solutions. The final challenge with all 4 bars has just one solution. I expect this to take me the rest of my life! For you tray packers, this might just be an essential purchase.

Out Of Center

Out of Center
I am a sucker for a good burr! I am not good at assembly but that is why Andreas gave us Burrtools! The disassembly, I find a delight of effectively exploring a hidden internal moving 3D maze as you slide pieces about. I have quite a few burrs, both stick and board versions and as the number of pieces go up, they get much much more difficult. My 18 piece burrs are always a huge challenge and this one by Alfons Eyckmans is something very different to everything else I have ever seen - this is the first time I have ever seen an 18 piece board burr! It certainly is not for beginners. Jakub and team have made this beautifully from Wenge, Maple and Bubinga. They have made it a decent size at 10cm across.

This is a huge challenge but also a lot of fun. From the very beginning there are quite a few possible moves but the pathways aren't very long to get lost in. It will be important, as with all board burrs, to ensure everything stays aligned and no rotations happen. I don't think there are any early rotational shortcuts but small rotations will block the required moves. As I got further and further into the puzzle, I realised there was a repetitive locking and unlocking sequence which gradually made space for pieces to be further and further extended out of the puzzle. The burr has a level 22.3.6.1.2.1.1.1.1.1.1.2.2 disassembly which is just perfect for most experienced burr-istas and remains pretty stable right through to the final pieces being removed.

Looks horrific to reassemble?
Having taken it apart, there was no way that it was going back together from memory. Burrtools to the rescue again and despite being a board burr and despite the huge number of pieces, it was a nice easy assembly to follow. It will look lovely on display.

Minima 2nd Drawer

Minima 2nd Drawer by Frederic Boucher
It took a while to open the drawer!
This incredible design by Frederic Boucher is the next in the Minima Drawer series. I reviewed the first one here in July. Like the first one, this is a "must have" for any serious puzzler. But be warned...it is MUCH tougher than the first one. 

Pelikan have made this with an Elm box and Wenge pieces. On arrival, only one of the pieces is outside the box and the drawer will not slide to release the others. It takes a bit of experimenting with gravity and rotation to release the drawer enough to release any pieces. Once you have them, the difference from the first puzzle is clear - the dowels are captive inside and actually prevent the drawer sliding completely out. There are 2 L shaped triominoes, 2 dominoes and one single voxel piece. All have holes drilled through in various positions.

I have not yet managed to solve this one despite several hours of attempts. It is clear that an assembly will be needed outside the drawer first and then a sequence of insertion and moves will be needed to get them inside. Make sure that you keep track of the movements that you use during the insertion because it is quite easy to get blocked up and unable to move. At one point I had to shake pieces about inside to release a blockage and nearly had a heart attack! This is an incredibly tough challenge! Let's also just say that Burrtools will NOT help you with this. Good luck!

Apotheca

Apotheca by Dr Volker Latussek
The second puzzle in this release by Volker is another one that reveals that he has a very devious mind!  It has been beautifully made using a lovely grained Limba Frake for the pieces and American Walnut for the box. The box is 7x7x6.5cm and, as always with Volker's puzzles, it arrives in a special delievry configuration. This one looks solved when it arrives but notice that the pieces are protruding from the box. Obviously when packed they will be flush with the surface.

Shallow notches and dowels on each piece and in the box

Taking the pieces out reveals the madness in his head! The pieces are really fairly simple with 3 and 4 voxel L-shapes to which shallow holes and dowels have been added as well as a single dowel on one wall of the box.  This one looks very similar to the Farmacia puzzle from April's release but the are bound to be some special differences.

Having taken my photo of the pieces, not only could I not assemble the cube, I also couldn't put them back in the box into the delivery position! Having worked on so many puzzles this week, my head was broken!

The intention is to create a 3x3x3 cube inside the box. The presence of the dowels means that this has got to be done in a certain order and only one orientation. Again, Burrtools is not useful for this puzzle which really adds to the difficulty. 

Volker was very pleased with how this puzzle design worked out. he said this about it:
"When working with the usual v's and developing FARMACIA, I had to learn that some very nice moves are not possible. However, from my experience with FILLING V, I know how powerful L's are. So what could be more obvious than turning four v's into three L's and filling the 3x3x3 box together with the remaining five v's? And suddenly, the previously impossible moves become possible.
I really hope that you too will see that the price of losing the simple and clean construction principle of the 9 v's of FARMACIA is not too high and that the beauty of the solution in the APOTHECA solution justifies the mixture of eight v's and L's. In fact, the mixture is so powerful that I can offer another puzzle with APTEEK. Perhaps Pelikan will once again show how perfectly crafted ideas in wood enrich the world of mechanical puzzles."
With this description, who can resist? I have still not solved the Farmacia puzzle! I thought it was related to the Logical progression puzzle which ultimately took me a couple of years to solve. Whilst the Farmacia is solvable using Burrtools, the Apotheca has been deliberately designed such that "impossible moves" become possible and I suspect this one will forever be a nemesis. It will be fun to keep trying over many years!

Slider H

Slider H by Benjamin Heidt
Finally, a stunning looking puzzle from Benjamin Heidt. This chunky 7.5x7.5x8cm puzzle has been beautifully made by the Pelikan team from Padauk, Acacia and Peruvian Walnut. It is a good solid heavy puzzle and arrives with one piece outside the box which has an H shaped opening. Benjamin has taken the basic Soma cube pieces, one has been glued inside the box and another pair have been altered and combined into one complex piece.

Pieces outside the box
One is captive inside
The aim is to insert the pieces inside so that only one colour is visible from above when finished. There is a second solution that does not have this restriction and this will be a nice extra challenge for you. I started placing pieces inside the box straight away and failed to pack the cube before I realised that something was amiss. Have a close look at the trapped piece inside and you quickly realise that there is a gap underneath that cannot be reached by sliding pieces in from above. There is something very interesting built into the mechanism of this puzzle which Pelikan have made with extreme precision - it is a marvel to play with and once you have realised what is possible then you are on your way to a solution. It might take you a while! I still haven't solved it!


So we have an incredible set of puzzles coming from Jakub and team soon. These are significantly tougher than many of the usual puzzles and may keep you going for a very long time. I have yet to solve  all of them with some I have only partially completed.

My favourites are:
Petit Albert - a stunning idea and beautifully produced.
Slider H - an interesting twist on a classic
Minima 2nd drawer - it's just so clever (or it will be if I ever complete it)
Social distance soma cube - so gorgeous on display and a huge increase in difficulty for a classic puzzle.