Pelikan Summer Release 2025

Upcoming Puzzles From Pelikan

Yes, if you have been watching my new stuff page or my FB page then you will have seen that quite a few new toys have arrived at PuzzleMad HQ over the last month or so and Mrs S has become increasingly irritated with me. The camel's back very nearly snapped at the end of last week when I had to admit to her that there might be another delivery from Jakub, Jaroslav and team whilst I was at work last week. My incipient murder was delayed by a plane malfunction in Germany and the promised big box didn't arrive on time. The end result was that it was delayed until last Monday and I was working from home - no there were no knee replacements on the kitchen table! I was doing committee work on the dreaded MS Teams - 😱. The arrival of the box was beautifully timed between meetings and I managed to intercept it and secrete it away before there was an explosion! Phew.

The downside of the delayed flight was that I had much less time to play. I have only managed to solve 4 of the 8 arrivals so far. Hopefully the rest will be ready for next Sunday.

The Bunch 2.2

The Bunch 2.2 by Alfons Eyckmans

This gorgeous cube is another of a long line of amazing interlocking puzzles from the Master, Alfons Eyckmans. I have quite a few of these now, both direct from him, as well as versions from Pelikan and they are always great fun to play with as well as looking fabulous on display. This one is very attractive made from Wenge, Maple and Purpleheart. It is a simpler design than many of the others but this makes for a rather nice exploration and solve. 

My first time dismantling it I found a rather nice rotational shortcut but quickly put the piece that is removed back in the puzzle as I know that Alfons tends not to like rotational solutions. The first piece comes out nice and logically and opens up quite a lot of movement but for a while I was missing the key move that would allow me to progress. It was a nice surprise when I found it and even then the next part was not obvious. The puzzle does reveal the inner locking mechanism and that helps you plan the next few moves. 

It's going to be fun putting this back together

Having disassembled it, then is definitely a fun challenge to scramble the pieces and then reassemble after the memory of the disassembly has faded. Great fun! If you love cuboid interlocking puzzles and Alfons' work interests you then this is a brilliant one for your collection.

Rising Peaks - Everest

Rising Peaks - Everest by Girish Sharma

This is another of Girish Sharma's amazing interlocking cube creations.  Judging from the name Rising Peaks hyphenated with a mountain name, I suspect this is the first in a whole series of these puzzles - I certainly hope so! Beautifully made using Padauk, Wenge, Acacia and Maple, the initial challenge is to separate the pieces from their travel assembly. Maybe I'm not very good at puzzles (it does say that all over my website) but I actually took a good 5 minutes taking it apart. Then obviously you have to assemble them into a 4x4x4 cube using linear moves only. Many puzzlers have moved away from solely linear interlocking puzzles but I still love the standard interlocking puzzles that I first learned about so many years ago from Richard Gain. They provide a wonderful challenge and can be quite tough. This one is absolutely superb. 

From the beginning it is very easy to establish the positions of the 4 pieces but actually assembling them is a tremendous fun challenge. Working out which pieces to use first and which subsequently get inserted is part of the difficulty. There is no obvious order when looking at the shapes and in fact the required order was a bit of a surprise to me. At first it's possible to place any 3 pieces in a promising arrangement but the final one ain't going nowhere! I spent a good 45 minutes trying various arrangements of the first 2/3 pieces before I found a sequence that looked promising - something worthy of Girish' design skills. Once I'd found this start, I thought I was making progress until miraculously a piece fell out unexpectedly - I sort of lost track of what I was doing and ended up back at the beginning. Start again...

Continuing in my search I noticed a possible move that I had missed the first time and that opened up a whole set of dance moves of the pieces in an out around each other. The Pelikan team have made this beautifully tight so the pieces don't flop about and each move has to be made deliberately with the occasional "thwack" as they settle in to place. I had my cube assembled in about an hour. 

There is NO spoiler here - the relative positions of the pieces are really obvious

Having taken my photos, I then struggled to dismantle the puzzle and put it back into the storage/travel position. It's a disassembly challenge as well as an assembly one. I redid it a few hours later and even though I remembered the vague order of the pieces, it still took me quite a while to repeat the process. 

This is another masterpiece of design and manufacture by Girish and Pelikan. If you like interlocking puzzles then this should be high on your shopping list.

Minima Magnetik

Minima Magnetik by Frederic Boucher

My goodness! Is there no end to Frederic's design skills and ideas?? Here we have yet another wonderful puzzle in the now enormous Minima series. I have written extensive reviews of Minima puzzles over the last couple of years and have to admit that this series is one of the single most compelling series I have ever played with. I had thought that Frederic might run out of ideas but there seems to be no sign of it so far. The Pelikan team have made this version using Jatoba and Acacia woods with a bunch of magnets. This amazing design looks so simple until you casually have a play. The usual 2x2x3 box has two entry holes to it and what looks like some finger-holes as well. Anyone looking at these shapes (1x1x2 sticks) with a hole in one end and another at the front will be able to think of quite a few ways to get the pieces inside and think this is simplicity itself. I sort of thought so too until I received the instructions.

"First place the box on a flat surface.

Pack the pieces inside su that no magnets are visible through any holes in the box.

Once a piece has been placed in the box, you can not touch or move the pieces with your fingers or move the box"

Ah! Now we have an entirely new challenge! It is a simple packing but made challenging by the constraints. The magnets are obviously the key to manipulating the pieces. To add to the challenge the embedded magnets have their polarity arranged such that 4 of the pieces have one orientation, another the opposite way around and one piece has no magnet. First challenge is to decide which way around the box needs to be placed and then it will be necessary to use both repulsion and attraction to move the pieces around. If the pieces are placed through one hole and another piece placed through the other, then it is quite possible for a diagonal repulsion to occur and another piece placed to prevent this. There is a whole lot of challenge to this one.

I worked out an approach after about half an hour of fiddling out of the box and attempted to do it inside. This taught me that I needed to be very careful with the exact order that pieces need to be placed. I thought I had my solution and took this photo:

No magnets visible but....

Having been unaware that this design was being made by Jakub, I had ordered the same puzzle from Tye Stahly's Nothing Yet Designs store and had actually received his copy a few days earlier (thanks Allard, for forwarding it on to me). 

Minima Magnetik from Tye

I set about doing the same thing with the 3D printed version and, to my horror, it would not work! The repulsion of the magnets was not quite strong enough to achieve one of the crucial moves. This could only mean that my initial solution was not the intended one. It also means that you have two solutions to find if you buy the Pelikan version of this puzzle. I went back to the drawing board and have to shamefully admit that it took me another 2 days to find a solution that would work with both versions. The actual sequence of moves is really quite involved requiring multiple steps. This is a must have puzzle!

Minima Drawer

Minima Drawer by Frederic Boucher

This gorgeous creation is yet another Minima design by Frederic. It is also another of those must have puzzles. This version has been created using a very beautiful Leopard wood and Maple and is stunning. It arrives with the box completely closed and one L shaped piece outside. The drawer of the box can slide in either direction, although on arrival it can will only go one way and reveals a number of pieces inside. It's not straightforward removing all the pieces and requires the drawer to be moved in both directions to progressively release the pieces. Be careful! It's easy to get stuck!

Dowels galore!

Once you have all the pieces, the extent of the challenge becomes clear! There drawer is prevented from coming out by a one voxel dowel attached to the roof of the puzzle inside. There is also another one voxel dowel pointing horizontally inside the drawer. The pieces and extra dowels need to be placed inside the 2x2x3 cavity as usual. Having experienced the minor challenge of removing the pieces from the transport position, I knew that multiple moves would be required and sliding the drawer back and forth. Gravity was going to be a key consideration here. There are a few arrangements that will fit the space given but it is clear that most are not physically possible. The approach here has to be to find an assembly and then work backwards to see whether it can be removed from the box. 

No spoiler - it is solved!

I think I got somewhat lucky and found the solution after only a whole day of trying but on the way I nearly had a heart attack several times. The limited opening means that some of the pieces need to be rotated into the box and if they are not right or in the right order, they must be removed using the same rotation. Sometimes this can be very hard to achieve and leave you with a huge challenge and worry that you have trapped them inside permanently.

This one is a minima for true puzzle professionals - it is fabulous!

I will be working on the remaining 4 puzzles over the upcoming week and will finish the reviews next Sunday.

A Huge Selection Of Pelikans!

Upcoming release from Pelikan

Couldn't fit into the grid 

A rather large box arrived earlier this week and an annoyed Mrs S muttered "not again" to me. I gritted my teeth, kept my head down and promised not to leave them lying around once I had solved them (there is a rather embarrassing number of puzzles just strewn all over the house just now and I need to put some away before there's a bloodbath in PuzzleMad HQ.

This time there is a huge selection of puzzles from your favourite designers and a variety of different types of puzzle with varying difficulty levels to suit everyone. 

From top left above:

Zack Die Krone by Stephan Baumegger (2 versions available)

The Horns of Booth by Dr Volker Latussek

PSI by Girish Sharma

5 Balls by Frederic Boucher

One Match Left by Jorgos Anastasou

Serial Square NTC by Lucie Pauwels

LOL by Frederic Boucher

Sam Duo by Frederic Boucher

Heavy Lifter by Girish Sharma

Yes U Can by Frederic Boucher pictured separately

Jakub has asked for me to give some reviews as quickly as possible and so I will be spreading them over two weekends of blogs. Expect them to go on sale quite soon.

Zack Die Krone

There will be 2 versions of Zack Die Krone by Stephan Baumegger, both are absolutely beautiful. This fabulous puzzle is not for the faint-hearted. When I first picked it up, I thought it was a 6 piece burr in a frame and expected a huge struggle as a result. When I had a closer look I was relieved to see that it is "just" a mere 3 piece burr within a cage that has a big hole in the top. How hard could it be? OMG, it is a serious challenge!

There are a few possible moves at first but after that the possibilities open up quite a bit as there is plenty of space to look at what is happening and also plenty of space to move the pieces around each other an around the frame. Initially the frame really gets in the way of what you want to do but after a bit of fiddling a way method of getting around it can be found. Once this has been done, you will need to carefully control the pieces as they appear to become quite unstable. Rotations won't happen easily but are possible and you will need to prevent that. I managed to unlink one side of a piece from the others and then got very badly stuck being completely unable to progress and needed to backtrack to the beginning again. Luckily, I found that it's usually pretty easy to backtrack if you paid attention but I dare say some of you might get lost at some point.

I remained stuck at the same position for a whole evening before I managed to find a possible move. It's a huge advantage being able to see more or less everything that is going on and sort of planning what you can do. With great satisfaction I found a path to release a piece from both the others and then a simple matter of releasing it from the frame. I had my 4 pieces and could take a photo. At level 21.8.3 for the complete disassembly, this is a huge challenge for anyone and only the very best of you will be able to reassemble it without Burrtools (I certainly needed it)

An incredible challenge The magnets hold it stable when assembled

One Match Left 

Looks just like a matchbox

As expected - one match inside

A new designer I've not heard of before, Jorgos Anastasou seems to have been designing for a few years but this is the first of his that has been mass produced. This beautiful cute little puzzle is made to look like a matchbox (very reminiscent of the matchbox playground from last year). It's made of Jatoba, Wenge, Maple & Cherry. Only two of the woods are visible from the outside of the box. There appear to be two but pieces inside the box which can slide and reveal a lovely little single match left in the box (hence the name). 

After six moves the match can come out but the tray formed by the two but pieces still won't slide out. A further 7 moves leads to one more part removal and a further 2 to complete disassembly. It's not terribly difficult but it's lovely and really quite cute. I suggest that you leave the pieces for a couple of days before attempting the reassembly. It will keep you nicely for a little while. Not hard but just right for a little light puzzling.  Indeed, Jorgos wrote about it:

"Sometimes the simple things can be the most enjoyable! The "One Match Left" is a moderately difficult level 6.7.2 disassembly challenge with a unique solution reassembly. It's fun to determine the position of the small match piece trapped inside the seven unit burr pieces and frame. Τhanks to Pelican for making my design a reality with their high quality construction and materials! Have fun!"

He's right, it is a simple thing compared to may others that have been made but it is a delight and very beautiful.

Leave it for a few days and assemble from scratch

Heavy Lifter

Arrives incorrectly assembled

5 pieces

This wonderful interlocking 4x4x4 cube puzzle is by the amazing Girish Sharma. It has been stunningly produced in some lovely woods - Zebrano, Acacia, Wenge, Maple and Massaranduba. It has been incorrectly assembled for transport and quickly comes apart into 4 rather complex shapes and an L. I did not receive any instructions and from the start assumed that it was a TIC. As a result, I set to work looking for the position of all the pieces and then rotational moves to get them interlocked. The process took me about an hour whilst watching TV with Mrs S. It was really very satisfying to work it out and seat the pieces into place. I was so delighted that I did it repeatedly that evening. 

The following day I got my instructions from Jakub and was stunned to realise that it was not meant as a TIC...he wrote:

"Over the last few months, I have been tinkering with the idea of high level 4x4x4 IC which form a full visible cube. So far, I've known the highest level to be 11 by a few designers. The challenge I took on myself was to design something with a higher level. This is first of the many designs that I have coming up in future. 

Heavy Lifter is a level 12.2.2.2 IC with 5 pieces. The puzzle comes disassembled and the goal is to assemble the pieces into a 4x4x4 cube. Once you have assembled the cube, you might realise the importance of the name of the puzzle."

Amazingly, it was actually an interlocking cube very similar to many of the wonderful Microcubology puzzles I bought way back at the beginning of my puzzling odyssey but MUCH MUCH tougher. The following evening, I just had to try again and do it without the rotations. This was a huge challenge as the TIC part had given me some preconceived ideas that I needed to get rid of. Girish has created an absolute monster of an interlocking cube which is absolutely wonderful to work on. The "proper solution" took me well over an hour and was joyous - this might well be my absolute favourite of the bunch.

This was an absolute joy to solve

LOL

Laugh out loud?

This made me laugh when I managed it

How can anyone resist a new puzzle designed by Frederic Boucher. I certainly can't and if it's called LOL then there is guaranteed to be something sprecial about it. This puzzle is very reminiscent of the Galette by Osanori Yanamoto in that there is a small flat box with a limited entry and a set of pieces to insert inside. There's no window in the front so it will all need to be done with dexterity and gravity along with quite a lot of thought. The puzzle is beautifully made from Jatoba and Cherry with the puzzle name on the surface which I think might be Marquetry (it's something I've never seen from Jakub before). 

The 5 simple pieces are to be put inside to make a 4x5 voxel rectangle. It's made more complex by the fact that the largest piece can't even fit through the 2 voxel opening - it requires a rotation to get inside and maybe there will be rotations needed inside the box without easy access?

There seem to be only a limited number of ways to create the rectangle and some of them are quite obviously impossible. I found a couple that potentially might be possible but finding a way to get them in the box is a huge challenge. The pieces block each other from getting into position and manipulating them through the tiny entrance hole is a frustratingly difficult experience. At one point I had a really good idea and it worked. But then the next step wouldn't work at all and I had a mini heart attack trying to undo the first supposedly good idea. It took me a good 30 minutes to get the pieces all out again and calm myself down.  There had been quite a lot of swearing during that process and Mrs S kept glaring at me! Having retrieved all the pieces I had a little think© and found myself trying to do the same thing over and over again. At one point, a little experiment with the pieces revealed a very subtle design element and yes, thank you Frederic, I did laugh out loud. A few minutes later I had my assembled puzzle:

Phew! That took a while.

Subsequently I received the instructions and found there was another challenge to be had:

Frederic wrote about it:

"LOL is an assembly puzzle with a very simple goal: Assemble the five pieces to make the acronym LOL, respecting the following rule: the 3 characters must have the same size (height and width). Will you discover the trick and succeed in the challenge? Exclusively for the PELIKAN version, a box is included. As a second challenge you must pack the pieces completely into the box. I hope this puzzle will make you laugh out loud!"

It appeared that I had only done the secondary challenge. The primary challenge still awaited me. This took me another hour or so yesterday and the important thing is to assemble the letters standing up on a flat surface. There is a very special trick that has had be done during the manufacture of the pieces to make it work. Another laugh out loud moment!

Sierpinski's Burr

Sierpinski's Burr by Tyler Hudson

Finally for today, I have a wonderful caged 6 piece burr from Tyler. He has been quite prolific over the last few years and has designed several different kinds of puzzle. This is a caged 6 piece burr which has had 2 opposite corners chopped off to allow quite a lot more freedom of movement for the burr sticks. It really adds to the challenge and allows it to reach quite a high level. I loved it but it might be too difficult for many of you if you are nor big burr fans. It has been beautifully made by Jakub and Jaroslav in Mahogany and Acacia. The angles of all those cuts must have made manufacture a bit of a nightmare to produce but the effort was well worth it. Obviously, it needs disassembly and then reassembly.

Tyler wrote about it:

"Sierpinski's Burr is a variation on the traditional framed 6 piece burr, in which 2 opposing corners have been removed. The resulting shape is one I hope you find quite interesting! It adds a few extra moves to the puzzle, and also provides small windows through which possible moves can be deduced. At level 40, it may sound a bit daunting, but keeping track of the solve is manageable, without too many dead ends. I don't think this one will be the hardest burr out there, but it should be a lot of fun to work out. Of course, the puzzle is named after the Sierpiński Triangle, which the triangular faces of the burr resemble. Pelikan's build of my design adds a lovely tactile feel, as well as being a beautiful wood combination. I hope people enjoy it! :)"

He is absolutely right! This is a huge challenge but is definitely manageable.there is a particular sequence that recurs several times and each time it is done it allows further progression before being undone and moving other pieces. The entire disassembly is level 40.6.3.1.2.2 so once the first piece is out then the rest will follow quite easily by looking inside and working out what is possible. 

A fabulous burr

Having taken my photo there was absolutely no way I could reassemble it myself and off to Burrtools I went. So much fun in one small cube! 

I have only had 5 days with the puzzles so far and managed to solve 5 of them in that time. I plan to work on the rest for next Sunday - come back for them.

My pick from this bunch is the Heavy Lifter and the LOL puzzle but all are absolutely fantastic!

It Ain't Wood, But Plastic is Still Fantastic!

These Brought Real Happiness

Great Haul from last week's MPP
Quite a few were from the IPP

After last week's MPP (great write up from Allard here), I came home with a bunch of new toys to play with much to the disgust of the first wife. There is a bit of pressure to tidy up in PuzzleMad HQ because the collection is out of control and I have been working so much that the new acquisitions have just been placed on my desk, next to my living room armchair, in the conservatory and (heaven help me!) in the dining room! "She" has told me in ever increasingly irritated terms that they had better be cleared up or extreme measures will be taken. I have not had the courage to ask what they were! I had one last day of annual leave last Tuesday and, having had some new fitted wardrobes installed in my, gulp, second puzzle room. I was provided with some storage containers (nice ones that her tidiness fetish had "forced" her to buy) and told that the dining room needs to be clear by the end of the day. 

Needless to say, with that look in her eyes, I quickly complied and after several hours of moving things around, finding 2 puzzles that I did not remember the names of (thank you Aaron for reminding me) and we had a nice tidy puzzle free (almost) dining room. The latest acquisitions were placed into a position to play with and I have used what little time I have had this week to attempt to solve some.

Jigs4w by Haym Hirsh (made by Tye Stahly)

Poor Colin!

I have had only a little success with the 5 piece Jig5aw from Haym, managing only to solve 1 of the 3 challenges and despite hours of attempts, not gotten anywhere close to success on the other 2. However, I had been full of confidence having solved the 10 piece jigsaw and had watched my poor assistant and trainee fail dismally at it. I received the Jigs4w as part of my IPP haul which Ali had carted back for me and immediately suffered the same problem as I had had with the 5 piece. Damn! That man is so devious!

No matter what you do with this one there always seems to be there always seems to be one of the tabs overlapping the edge of the frame. For heaven's sake! There are only 4 pieces! Why is it so difficult?

To my eternal shame, it took me 4 hours of trying the same thing over and over again until I finally got it! Why was I trying the same thing repeatedly? Because I couldn't remember previous combinations and orientations of pieces. Not only am I not a genius like Derek, I am actually not terribly bright. I think I have written that before on this website. 

I think this is called Second Stellation Interlocking puzzle

This shiny piece of jagged plastic was being given away free at the MPP (I think it was Allard that made it) and I was forced to take it home disassembled like this. When I unpacked it and stuffed it onto my pile to be payed with next to my chair, I got a beady eyed look and decided that I had better get on with it pretty quickly. It really does look cluttered when left as a pile o' pieces. I did express yet again the wish to buy a cheap 3D printer of my own but was very quickly disabused of the idea when I was told that the spiders in the garage might eat me alive whilst I slept...because that would be where I would be living!

I had seen this one come apart, so I was aware that it was yet another variation of the Diagonal star puzzle which I have written about many times. However, when trying to put this one together, there are various notches in the stem of the pieces (obviously they interlock) and an awful lot of sharp end pieces getting in the way of each other once more than 2 are assembled. Despite the pain of stabbing myself a couple of times, I happily played with these in various combinations and managed to create two 3-piece halves which would not assemble together due to being blocked. Time to think© and I had a proper look at the shapes and after a lovely little Aha! moment I had a more presentable shape to show Mrs S:

I think this might be the best diagonal star yet.
It would be amazing in wood

That is two puzzles solved in a week!

Happiness cube #001

Happiness cube #006

I have a history of misery with happiness cubes! I have a bunch of them in wood and the b£@$tards took them apart and mixed them all up......TWICE! Amongst the same pile of freebies was a few more happiness cubes and at the end of the day, there were a couple left over to be picked up my me. Yay!

Starting with this week, I will be working 6 day weeks for the next month which means I will need as much happiness as I could get. I was very impressed with Rich's collection of 3D printed hapinnes cubes and playing with them last week reminded me that I love finding disassemblies. After getting home from work yesterday, I felt the need to take something to bits and had a lovely time exploring the movements and disassembly sequence of these. I even managed to make enough muscle memory to be able to assemble them again after rearranging the pieces for the photo. I may need to prevail upon someone with a 3D printer to make me a bunch more of them!

Number 1 pieces

Number 6 pieces

They are now back together and ready for filing away with my other pieces of happiness!

Thank you Allard for a great MPP and also for the plastic fantastic fun.

---

Also, thank you to my readers for helping me pass yet another milestone. I have now had over 4 million page views since I begun the term into lunacy in 2011. The views even continued after the death of my mother and have taken off over the last year. It may well be that my site is just being scraped by AI bots and if that is the case then we will be safe from the machine overlords for a while yet. My drivel won't teach them anything useful!

Main site

New stuff site

3,975,734 + 97,169 makes 4,072,903

Thank you so much, guys and bots, for putting up with my craziness!

Back to Basics

And Still Not Good At It!

Eleventh Hour by Goh Pit Khiam

Once or twice a year, Tom Lensch emails out what he has been working on and lets interested puzzlers place orders. A few weeks ago the email came in just as I had purchased a few others and so my PayPal was tight and I also was aware that if post brought me too much then Mrs S would Whack! Ouch! me into oblivion.......again! I resisted the urge to buy it all and just picked a couple that I figured might just be possible for a man with my meagre bwain and which would not break the bank or Mrs S' patience. A week or so later I received the Eleventh Hour by Goh Pit Khiam (out of interest, I have seen the name as Goh Pit Khiam and Pit Khiam Goh - can anyone tell me how it should be written?).

It arrived in pieces made from what looks like Maple or Cherry and has Tom's fine stamp on one of the pieces. 4 pieces to construct into a 4x4x4 cube - surely, I must be able to manage this without too much difficulty after all these years? I set to work last weekend and very quickly managed to see the final position of all the pieces - yes, this might be an easy one! I was able to assemble any 3 of them quite quickly into their correct places but always was unable to get the 4th piece in. The way the pieces were interlocked always ensured that one was completely blocked from getting past. This was nice and fun - just the challenge I had been hoping for after desperately trying to solve the 3rd in the Hoffman suite from Pelikan. Whilst I have your attention, there are still a few left of the Sukiyaki, Steamboat and Fabrick puzzles on the Pelikan store - well worth a look.

I have had a lot of work to catch up on after my holiday and must  insist on using this as an excuse for my feeble bwain failing on this puzzle for several days. I was only able to play in the evenings but was getting nowhere fast. I even emailed Tom to ask whether this was a TIC but was reassured that it is "just" a simple interlocking puzzle. Damn! I'm rubbish at puzzles! Finally on Friday evening, I assembled my cube with a sigh of relief and a memory of the early days of my puzzling "career" - this simple interlocking cube takes me back to the fabulous creations from Rich Gain's Microcubology. Over that first couple of years of PuzzleMad, I must have bought 15-20 gorgeous interlocking creations (they sit in a tray on display in my second puzzle room - Whack! Ouch!). Only toward the end did I buy them in the disassembled state and solve them that way. I had kind of hoped that I might be better at them but Tom has proved me wrong!

5 days to assemble - that's rubbish!

Goh Pit Khiam also designs some interesting packing puzzles which I usually fail to manage but the Confound Space looked solvable by a mere human and I couldn't resist:

Confound space

6 blocks to place in a box with a limited opening - this is usually impossible for me.

Interestingly, I made a couple of discoveries very quickly and my "what if" sense made me try a few things and I was rewarded with my Aha! moment after just 20 minutes! Phew! I am not a complete eejit!