Showing posts with label Lohe. Show all posts
Showing posts with label Lohe. Show all posts

Sunday, 5 May 2024

A Puzzling Tribute to Christoph Lohe

Very sad news
After my last post (about Christoph Lohe's marvellous design, Neighburr) I received an email from both Laszlo Molnar and Goetz Schwandtner with the very sad news that Christoph had sadly passed away at the end of January this year. It would appear that his family had not had contact with him for a  few days and contacted the police and he was found in his flat. It has been judged to be natural causes. As many of us puzzlers are getting older this sort of thing should not come as a shock but he was only 65 years old. I guess that with what I do for a living, I should not be that surprised.

He was a significant scientist having  received a MSc in Experimental Physics from the Technology University Aachen in 1989 and a PhD in 1993. He worked as a Product manager Ferrofluidics, Nuertingen, Germany, 1996-2000. Project manager Aixtron AG, Aachen, since 2001. As a scientist of note he had been listed as a noteworthy physicist by Marquis Who's Who.

I considered Christoph a friend. We had never met and I was not constantly in touch with him but we exchanged emails every few months to discuss puzzles and his wonderful designs. You can still buy some of them from PuzzleMaster here or print them yourself from Thingiverse here.

His amazing skill as a designer is shown by the fact that I have reviewed 20 of his wonderful designs here on my little section of t'internet. I thought that it would be a nice think to look back at a few of my absolute favourite of his designs. 

Collaboration with the TICMaster, Andrew Crowell
Cyburr and Chamburr from Pelikan
Climburr from Matt Nedeljko               
When the first 2 came out from Pelikan, I wondered whether these two masters of puzzle design had created a completely new type of puzzle and raved about them. They made my top 10(ish) in 2021. The Climburr was felt to be too difficult to produce in wood by Jakub and it was only when Matt Nedeljkogot the courage to attempt them did we get to attempt the final one in the series. Spoiler alert - it was fabulous and made the top ten in the next year.

Locks, Locks, Locks!
Burrlock E
Key Trap
Christoph had a bit of a thing about locks and keys but not in the classical sense. He designed burrs in that shape. The fun thing is that rather than make simple 6 piece burrs where the pieces interact in the 3 axes, Christoph made the burrs with a frame to restrict movement and a key and shackle (and pieces) to lock up in at least 2 of the axes. The one amazing thing about all of Christoph's designs is that they are not terribly high level but are always challenging and fun without being too arduous. I absolutely adored these. The fact that even the late Eric Fuller thought well enough of these to make one of them, does show how good they were.

Framed Burrs
I adore a burr that has just the standard 6 pieces but is constrained in its movement and interaction by the presence of a frame. It makes them so much more interesting.

Neighburr by Brian Menold
Bouquet
Castle
Timburr
Again, we have puzzles that are so good that both Jakub and Brian Menold decided they were worth putting the effort into manufacturing in reasonable numbers. They all had something special and were all great fun without being too difficult.

Unconventional packing puzzles
Whenever I think of this particular type of challenge the names that always spring to mind are the incredible Alexander Magyarics and Osanori Yamamoto. But they were not alone, Christoph also had a fascination with these and designed some amazing puzzles:

Liliput
Trenta
Box with 2 balls
Kamelle Box
This is only a few of his great contributions to the puzzling world as well as to my collection but they include my favourites.

Do you have any favourites that you think should be given special mention? If so then please leave a comment below.

Rest in peace Christoph - I was proud to call you a friend.


Sunday, 28 April 2024

Always Take Your Photos First!

Neighburr designed by Christophe Lohe made by Brian Menold
Sigh! I have to say it yet again...I'm an eejit! I caused myself a flurry of work at the last moment for this post because I wasn't paying attention. I blame it on the fact that Mrs S is back "ooop North" again and I am home alone with a disturbed cat and a workload that is just too high including having to work the weekend yet again! The disturbed cat is gradually being made better by Prozac - yes, he's on the happy pills and making me look like a coke addict. Every couple of days I can be seen cutting a white powder on a glass coaster with a razor blade! The capsules are 20mg and I need to give him 2.5mg, hence I open capsules, pour out white powder and use a double edged razor to portion it into eighths and into little spoons for each day. The image is perfect, all I need is a rolled up £50 note and I am ready to be arrested! 😱😱😱

Having given my excuses, here is todays puzzle and what I did:

Bouquet
I had a little splurge with Brian Menold's Woodwonders store (I cannot resist the gorgeous woods and his fabulous choices in puzzles) and one of the delights was a caged 6 piece burr designed by Christophe Lohe - the Neighburr. I love burrs in general but I am hopelessly addicted to caged burrs - especially if they are caged 6 piece burrs because the addition of the cage can turn a relatively straight-forward exploration of simple moves into a wonderful interlocking nightmare. It is also made much more fun when the basic grid for the pieces strays away from the standard 2x2xn grid. The Neighburr has burr sticks based on a 2x3x6 grid and ads in the feature that one end is 2x3 and the other 2x2. This allows for much more interesting shapes and interaction. My copy has a wonderfully white Holly frame and the pieces are beautifully coloured Koto (white), Kirandy (yellow) and Redheart. This puzzle is very reminiscent of the Bouquet that I bought and wrote about a few years ago. That one was a fantastic challenge with a level of 23.3.5.3.3 and this one was described as an even harder level 34.3.2.2 - who could resist? Chris has a special skill with his designs - he always manages to find interesting shapes, interesting moves and just the right difficulty level.

Having received a bunch of puzzles from Brian, I put a few of them in my work bag and started playing whenever I had a brief moment at work. The disturbed cat was interfering with my ability to concentrate at home! There are quite a few moves open to you initially and all but one fails to lead very far which is also part of Chris' special skill. As you work your way in the puzzle does become a little rickety and require a little bit of control of the pieces to allow subsequent moves to happen but no rotations seem to be possible to inadvertently knock you off progress. On several occasions I got lost and couldn't seem to progress or find my way back but always after a little panic found my way to the start. In my usual to and fro process, I managed to gradually work my way in. This puzzle has a wonderful unlocking sequence with a lock mechanism being used, moving a piece before re-locking and then carrying on with another piece. The sequence of Aha! moments is wonderful.

I got to a point where there were a good few pieces sticking right out but not actually free. Everything could be seen inside but I just couldn't find the next move. At this point it was time to extubate a patient and I put it down for a couple of hours. The break did me good, on picking it back up, I could see the next moves straight away and I removed my first piece. Time to back-track. Except...I tilted the puzzle to align the removed piece and a precariously hanging second piece fell out on to my anaesthetic machine. Aargh! I bent down to pick it up hoping that I remembered the correct orientation and tilted it again whereupon 2 more pieces fell out - Double aargh! At this point with my surgeon laughing at me, there was no hope that I would be able to assemble it again without Burrtools. To be honest, I don't really mind that because making the BT file is all part of the fun.

Interesting pieces
I took my photo this morning of the pieces and looked through my photo database and to my horror realised that I had dismantled this one without taking my initial photo. I needed to make my BT file and reassemble it before I could blog about it. As I said above - I'm an eejit! When I went to BT to enter the pieces I suddenly found that this was not an easy one to enter the starting shape without having an assembled puzzle, or at least a photo to use as a reference. Luckily Brian has photos in his archive gallery but even then, this one is a bit awkward to enter into BT without having a puzzle to rotate around and look at from all angles. My initial attempts produced a puzzle with no solutions but after a bit of fiddling with my pieces and pushing them into the frame and rotating it around, I managed it and reassembled the puzzle.

This is absolutely terrific as I have come to expect from Chris. It even has some repeatability due to the lovely locking mechanism. 

Now, it's time to clean the litter tray (yuk!) and spend some time with the disturbed cat whilst playing with some of the others I received from Brian:

Uroborus by Girish Sharma
Persistence of memory by Alexander Magyarics


RIB
RIBlet
RIBeye
Yep! A series of wonderful Ribs designed by Andrew Crowell. These are 6 piece board burrs that need to be assembled with rotations. I hope that I have more luck with these than with the RIPley board burr which I haven't managed to assemble after quite a few years!



Sunday, 21 May 2023

Pelikan Produce Perfection...Again!

Upcoming wonders from Jakub, Jaroslav and team
I teased on my "new toys" page that I had received a bunch of wonderful new puzzles from the incredible Pelikan team and that I was working my way through them as fast as my little brain would cope. This was going to be a fun challenge for me whilst the present wife (she's doing ok for a first wife) was up in Edinburgh all week visiting the out-laws. Unfortunately I still had to work but part of it was at a virtual medical conference for a couple of days which did give me a few breaks to play in. I did try to play during the talks but I am not a woman and thus, cannot multitask. Yesterday, I managed to complete the final challenge (with a little cheating) and am ready to produce my reviews for you.

Ladybug
Ladybug by Pelikan - front and back views. It is adorable!
Pelikan have begun producing their own designs recently and are focussing on animals/insects. They are all absolutely gorgeous and have a real character to them. I classify them as "interlocking" puzzles but not burrs - I am not an expert, but I am sure that they count as Kumiki (maybe Frank will correct me if I'm wrong?) The Ladybug is a good bit larger than the previous releases - it stands out vibrantly in the living room (where my collection seems to be expanding much to the annoyance of Mrs S).  It is made from Wenge  and an incredibly red Padauk and is just plain cute. The last one, Snail, was slightly more complex than to dismantle than this one but it is still fun. To make it more of a challenge, I immediately scrambled the pieces and made a pile before trying to reassemble. It is still not very difficult but did take me a few minutes to work out the order and how to interlock them properly. This is a must have just for its' sheer beauty!

A pile o' pieces!

Dino
Dino by Christoph Lohe -Wenge and Acacia
Walnut and Wenge
There will be 2 versions of the Dino puzzle designed by Christoph Lohe. Chris is one of my favourite puzzle designers - he has a huge knack of creating puzzles that have a real quirky challenge to them. they are just the right difficulty level and are genuinely fun. This one is rather different to his usual - it is a fun cute shape and has less pieces than many of his other challenges. I think it is adorable.

The aim, obviously is to dismantle it and reassemble and this is definitely possible without using Burrtools. I had to feed back to Jakub that there was a rotational shortcut in the design that left the puzzle as a level 5 disassembly (Jakub hopes that you will not mind this). Personally I think it adds an extra dimension to the puzzle - first solve it with the rotation and then seek out the purely linear solution. The linear solution has a level 20.7.3.3 and one of the moves took me a very long time to find. Reassembly is possible without Burrtools and for the truly gifted amongst you then I suggest that you disassemble with the shortcut and then make the linear reassembly the true challenge. I think that will keep most of you going for a while.

Dino dismembered!

Shutout
Shutout by Osanori Yamamoto
This fabulous puzzle by Osanori Yamamoto has already been reviewed by me after I bought it direct from the master himself. In fact Allard has just reviewed it as well (summary - he loved it!) This fabulous challenge won a "Top 10 vote getter" prize in the 2022 IPP Design competition and I am so glad that it is being produced in greater numbers than Osanori-san can manage - everyone should get a chance to try this puzzle. It will be available in Wenge and Padauk as well as Wenge and Maple.

The aim is to assemble 6 identical tetrominoes inside the cubic box in such a way that all the gaps are filled. It has a nice "almost there" solution but the true solution requires several lovely Aha! moments. It is actually quite difficult - one of the great puzzlers out there, Naoaki Takashima, had shown it off as one of his puzzles of 2022 (alongside 3 other very serious puzzlers). When Naoaki-san had showed it off he had announced that he had placed a few of the pieces inside and couldn't even work out how he had done it and couldn't remove them. If a puzzler as good as this struggled then it has to be a significant challenge. Even having solved the original version, I struggled to solve it again after a gap of a few months - I remembered the tricks but still couldn't put all of them together into one solution without a struggle. 

No! This picture is not helpful!
It is beautifully made as you would expect from Pelikan and wonderfully tactile. I have to say that this is one of those "essential purchases" from this Pelikan release.

Slider 2
Slider 2 by Osanori Yamamoto
Osanori-san has a second puzzle in this release and it is a significant challenge. I had bought and reviewed the Gem from his in April and absolutely adored the challenge (in fact Osanori and told me that Gem was one of his favourite puzzles). The Slider 2 is like the Gem but on steroids - it is a significantly difficult challenge and luckily has been sent out as a disassembly challenge rather than an assembly one. They share in common the fact that there are plate burrs which ned to be fitted into a cubic frame. Made more complex by the fact that the plates are not flat and protrude out into the z axis. Gem has 3 plates and Slider 2 ups the ante by having 4 plates. It has been beautifully made with Mahogany and Wenge and the finish ensures that everything slides smoothly. Some of the moves are very well hidden. and there are several blind ends and circular routes possible during the exploration. I got stuck for several days with the plates extended out of the frame quite a long way but just could not find a space where it would extend enough to release. After 4 days of trying, I found my missing move with a great shout and removed the first piece. After that it is easy to remove the rest. I then suggest that you leave the pieces for a while before trying to put it back together - it is VERY difficult if you have mixed the pieces up. I failed and had to create a Burrtools file which told me that the disassembly level was 21.2.1.2 

A fabulous challenge
This was a huge challenge for me due to getting stuck so close to the end. Reassembly required Burrtools but after that it was a fun one to memorise and assemble from memory.

Nebelung
Nebelung by Alfons Eyckmans 
Rear view
I have a bit of a weakness for caged burrs - there is something about how the addition of a cage around a (usually) 6 piece burr makes it so much more difficult (I wrote about one just a few weeks ago). Alfons is a master of puzzle design and he takes an idea and runs with it until he has created an ultimate version of the genre. I have bought many of the interlocking cubes from him as well as from Jakub over the years and they are just amazing. This time Alfons has taken the caged burr and made it more interesting and more difficult - he has taken a 9 piece burr and placed it in a rather complex cage and created a level 18.1.1.2.2 puzzle which requires some proper exploring and clever moves to solve. Pelikan have made it using a lovely contrasting Wenge and vibrant Padauk (it really is as bright as the picture shows). 

Straight away there are some lovely moves to explore and not too many blind endings to get lost in. I made some fast progress initially before getting stuck for a day. The cage here seems to act to hold the pieces in place but still allows you to see inside and try and plan your moves. It took me some time to find a rather delicious move that I could not have found by accident - I needed to look and plan to get my special "squish" move. This then opened up more pathways and progress seemed to be being made before I was stuck again. I got stuck here for a few more days and, again, had to look and plan. Suddenly after another Aha! moment I had opened up a section which allowed pieces to be removed from the puzzle. It remained remarkably stable until I had removed almost all 9 burrsticks. I did have to resort to Burrtools for the early part of the reassembly but once I had the first 4 pieces inside the frame, I was able to reassemble it from scratch. This was a framed burr made beautifully at just the right difficulty level.

Just look at that wonderful craftsmanship!

Ode to the Bevel aka Fermat for Friends
Ode to the bevel by Dr Volker Latussek
Yes, we have another of Dr Latussek's clever packing puzzles! I was contacted by Volker when he heard that I had received my review copy. I was very surprised that he was almost apologetic about it! He said:
"I had planned to pack five identical triangles into my usual box. I had wished that the triangles were beveled, preferably the tips were trimmed. I made a virtue of this necessity and for the first time designed a puzzle whose solution is only possible with a bevel. Nevertheless, Pelikan had to keep the usual small tolerances. Many thanks for that. The puzzle is an ode to the bevel. I beg the indulgence of the experts among Pelikan's customers, ODE TO THE BEVEL is, like my CASINO, a puzzle for the coffee table."
Volker had designed something very clever but thought that the puzzle may not have the purity and difficulty of his previous puzzles that Jakub and Jaroslav's customers had come to expect. He wanted it to be a family puzzle that is suitable to display on a coffee table for all to play with rather than go in a collection. I have to say that he has NOTHING to apologise for! Yes, this puzzle is not as pure as some others and indeed, it is not quite as difficult as as the others but that does not detract from it at all. I think that this puzzle is FABULOUS! It has been beautifully made from Pink Oak and a vibrant yellow Garapa. 

There are a few interesting possibilities when assembling shapes outside the box. The pieces seem to fit into the box quite easily up to getting the fourth one in and then it gets pretty blocked up and even with my small fingers, I struggled to move them around inside as they blocked each other. This puzzle requires a bit of thought about how the shapes can interact with the box and a bit of planning before you get a lovely Aha! moment and suddenly the final piece sits inside. I won't show the solved puzzle here. As with all of Volker's puzzles, he has a very specific transport assembly which in itself is a bit fiddly to get done - I don't envy the Pelikan team putting them all together!

Tetra Flop
Tetra Flop by Dr Latussek
8 Tetrominoes to fit
Another masterpiece by Volker! This packing puzzle is gorgeous and chunky. The substantial box is Elm and the vibrant pieces are Bubinga. It consists of all eight possible Tetrominoes which need to be formed into a 4x4x2 cuboid but done through a 1½x4 voxel hole in the top. There is a small hole in the bottom which is not quite big enough to let you put fingers through to move the pieces around inside. It quickly becomes apparent that the size and position of this hole is perfect to allow rotations of the pieces in certain directions inside the box. This is obviously going to be a challenging puzzle.

Having removed the pieces for my photo, I wanted to put them back in the same way so that I could carry it in my work bag for a few days. Sigh! I couldn't even find the way to replace them in the transport position which had the 4x1x1 stick just lying on top. This might just prove impossible for me. Volker had also commented on this to me:
"sparked by a call from Oskar van Deventer to suggest new cages for the SOMA CUBE. Although I'd already worked on a similar idea a while ago, I gave it another go, and in fact this time turned out to be more productive than back then and I had a lot of fun playing with the new ideas and especially working with Oskar. (Thanks Oskar!)... 
While I can't definitively say that there isn't one, I have only managed to find one dirty design with an extra opening on the back, which might be a clue to the (unique) solution. For me, the solution contains such wonderful rotations that I decided I had to publish TETRA FLOP despite my reservations."
Yet again he seems to be apologising for a "less than pure" puzzle! The fact that the box needed a hole to facilitate some of the rotations to his mind makes the puzzle less worthy and again, I have to disagree. The purity of the puzzle does not in any way detract from the wonderful sequences of moves that are required to solve it! Again, this puzzle is a masterpiece and I just do not understand how his mind works to find these designs. I initially tried making the required shapes outside the box and then looking to see whether I could do so through the limited opening. Each shape I found has to be looked at in 8 different orientations. I am not very good at Soma type assemblies and having found 4 cuboids and 32 different failed attempts at inserting them into the box, I went to Burrtools to see how many possible assemblies there might be and was horrified to see that there are 695! Aargh!

At this point I had asked Jakub for some help and the solution file was sent to me. I was very careful to glance through squinted eyes and only saw the positions of 3 of the pieces and used this as my starting point. Another 3 days and I had found a few assemblies that might be promising but just could not get them in the box. Back to Burrtools - I constrained the solver to have those 3 pieces in the positions that I had seen and now I had only 60 possibilities and also did not need to bother with rotation of the assembled cuboid. The fourth of the assemblies that Burrtools had found did look promising and I set to. Oh boy! There are a LOT of rotations in this and they must be done in the right order and right position. Volker is absolutely right, this has some wonderful rotations in it which are a joy to explore.

This will not help you in any way!
This is a seriously difficult puzzle! It is not for the faint hearted and only the very best (or luckiest) of you will manage to solve this without help. If I had not been shown the position of 3 pieces then I think I would still be at it for weeks if not years. This is perfect for the puzzle geniuses or the suckers for punishment! Thank you Volker!


What do I advise you to definitely buy? Shutout is an essential for puzzlers - it won a prize for a very good reason. Ode to the Bevel is yet another fabulous Latussek puzzle - being slightly easier than its' predecessors does not detract from the joy I got in its' solution. Ladybug is gorgeous, fun and will look lovely on display. After that, it depends on whether burrs are your thing or incredibly difficult packing puzzles. Personally, I think you should buy them all!

Sunday, 5 February 2023

Something for Everyone From Pelikan

OMG! Sooo beautiful - Plus one more that I couldn't easily arrange as I am in mid solve
I have been lucky enough yet again to get advance access to the latest creations from Jakub and Jaroslav's amazing Pelikan factory. This time we have 8 incredibly beautiful challenges varying from the simple and quirky to the unbelievably difficult. There is something for everyone here. 

Luckily for me they arrived in 2 batches. The first 6 arrived 2 weeks ago with a warning not to write anything yet due to delays of the whole release caused by sickness. This certainly made it a little less fraught for me and I have solved those first ones in a leisurely fashion over that 2 weeks. Then unexpectedly another 3 arrived with a request that Jakub would like the solutions as soon as possible. I have been feverishly trying to solve 3 of the hardest ones in the week. There is something for everyone here - if you like burrs then there is something from easy to challenging but fun right up to the OMG difficult. Packing puzzles as well with something that I managed fairly easily to another that is fabulous but really tough.

On we go:

Imogen's Cube

Imogen's Cube by Alfons Eyckmans
         Incredible design and incredible manufacture
Imogen's cube is one of Alfons Eyckmans amazing interlocking cubic designs which he names after significant people - this one was designed and named for the daughter of a puzzling friend. I had already bought this one from Alfons several years ago and have so far failed to dismantle it. I was astounded when I took this out of the box! It is stunningly beautiful made from multiple hardwoods. There is a frame and several interlocking sticks crossing each axis of the puzzle with 4 crossing one direction, 3 in another and 2 the final one. There is a lot of movement in this right from the very beginning and I have managed to get myself lost several times during my to and fro approach to solving these. On several occasions I have found myself with a stick a long way out and nowhere to go but then unable to work out how to get it back in again. The solution level is not astoundingly high but the sheer amount of movement and blind ends seems to have made this really tough for me. In fact I have yet to solve it. For those of you who are really keen on burrs/interlocking solids or those of you who want something truly gorgeous for the display then this will be a must have.

Lucia

Lucia by Alfons Eyckmans
Another incredible design showing the skills of Alfons. This seems to be something new from him. I have seen him design a number of interlocking cubes and various burrs over the years but I have not really seen him spend much time on a rather special and enjoyable type of 6 piece burr. These have the sticks based on a 3x3x8 voxel grid which allows the construction of the obstructing marts to be much more intricate and more like a maze to navigate. The first one like this was the Dracula from the last release (which is still in stock). This has been beautifully crafted from Acacia with a lovely grain. The exploration is fun and with a level 10.3.2 the disassembly is fun without being too difficult. For those of you with some real burr skill, I definitely recommend scrambling the pieces and after a break attempting a reassembly. It is tough but even I managed it with only a medium struggle.

Pin-up Box

Pin-up Box by Lucie Pauwels
This delightful little packing puzzle by the amazing Lucie Pauwels really packs quite a punch. It is surprisingly heavy for its' size (85x36x46mm) which I presume is due to the density of the Jatoba box. The pieces are made from Wenge and there is a beautifully made pin made withMaple and Bubinga. The pieces are a small subset of the Soma pieces with 4 of them having a hole drilled through. The aim is to assemble the pieces inside the box leaving space for the pin to be poked though the hole into the piece which lines up with it. There are obvious 4 different solutions depending on which piece you wish to pierce. I found this a delightful little challenge to try in the evenings and finding the final one took me a surprising amount of time (but then I am usually terrible at packing puzzles). This is a lovely puzzle for beginners and experienced puzzlers alike.



Lucie has contacted me free I posted this to correct me and tell me the true aim:
"The goal of the Pin-Up Box is to pack everything inside and fix with the pin, in a way that nothing drops out when you hold the box upside down. Four pieces with a pin-hole, each giving a solution."

Time to try again! 

Turtles

Turtles designed by our very own Jakub
This one is very cute. Jakub decided that he wanted to turn his hand to puzzle design himself and created something delightful. Turtles reminds me of the Bison puzzle from Xmas 2021 - it is a sequentially interlocking puzzle created from Wenge and Acacia. The secret is to find the way to remove the first piece and then it will serially disassemble. In the end you are left with a bunch of rather interesting pieces and a genuine laugh out loud moment when you suddenly realise what the guys have done. When I showed Mrs S, even she was delighted with the end result. It is not a difficult puzzle but it is genuinely delightful.

Timburr

Timburr by Christoph Lohe
There seems to be no end to the design skills shown by Christoph Lohe. His interlocking/burr puzzles are always relatively simple in basic outline shape but the design of the solution is always a wonderful and very fun challenge. Over the years he has produced a bunch of burrs with frames and they have all been brilliant. I think that the Timburr (beautifully recreated here by Jakub from Purpleheart, Padauk, Wenge and Ash) is one of his very best designs. The solution level is a very high 31.3.1.3.3.3 which is astonishing for just a 6 piece burr. Despite the high level and a fair number of dead ends at first, finding the pathway is a pleasant exploration and has 2 or 3 lovely Aha! moments in the process. It took me a couple of evenings to dismantle it.

It looks so simple!
Unfortunately for me, having balanced the pieces on my cat as I sequentially removed them, he rolled over and they all slid off into a pile. Despite this, I was actually able to reassemble the puzzle from scratch with only a couple of days attempting to place the pieces the wrong way around. I found the reassembly challenge even more fun than the initial disassembly (although I very much doubt I could have managed it without having done that first). This puzzle is simply fabulous - one of my favourites in this batch.

Cerberus

Cerberus by Girish Sharma
Girish is a relatively new name to me. I noticed that he suddenly appeared in the IPP design competition winners list this year with what looks like either a TIC or sequentially interlocking cube puzzle. Here we have another interlocking cube puzzle made from Wenge, Padauk, Acacia and Maple. I have always adored these puzzles ever since I got hooked by Richard Gain's microcubology puzzles way back at the beginning of my puzzling career. Initially, I could only disassemble them and over the years got better and better and even enjoy them as assembly puzzles. One of my all time favourite interlocking puzzles is one of Juha Levonen's designs - the Juha's 12. This puzzle has a special piece which marches up and down through the other pieces during the solve process and is absolutely wonderful to play with. The Cerberus by Girish left me with a similar feeling. The pieces move all over the place and one piece in particular marches through. Once it has been removed (after 25 moves) it takes another 5 to remove the second and then 4 to finally separate the last 2 pieces:

Absolutely stunning design and beautifully made
This puzzle was probably my absolute favourite from this release. I am really looking forward to any new creations from Girish in the future.

Umbrella

Umbrella by Tamás Vanyó
On Facebook, Tamás has been designing and producing some absolutely incredible challenges and has worked with Pelikan over the last year to bring them to reality for us all to enjoy, however, I have not seen him design a packing puzzle before. I was surprised and delighted to see the Umbrella amongst the latest arrivals. This packing puzzle has something special which is just what I would expect from Tamás - all the pieces have a unique box like design which allows them to be changed into 2 different shapes. The workmanship required to create this puzzle is astounding - the American Walnut L shaped pieces have a stem and a box round that stem which slides freely into each of the two positions. All the pieces need to be placed into the Ash box. There are quite a lot of solutions and it is a rather delightful soothing process to try and find them. There is always a single voxel gap inside and I have attempted to find solutions which have that gap in various different positions. This is a lovely idea and fun for all experience levels.

Just one of the solutions

Stuffing Burr

Stuffing Burr by Volker Latussek
It would seem that no release from Pelikan is complete without something from Dr Latussek and you will not be disappointed this time. We are all delighted when the good doctor creates yet another of his impossibly difficult packing puzzles (I have still not solved Fermat or Euklid for Nick) but here we have something completely different. It is called a burr but is it really? This nice chunky puzzle is made from absolutely gorgeous Purpleheart and consists of 2 pairs of identical L-shaped pieces which have notches cut into them. The aim is to assemble a shape that allows all the notches to be filled. Only four pieces in the burr and only 8 notches...it must be easy? Not for me it wasn't! Would you expect Volker to release an easy puzzle? This was one of the puzzles that arrived earlier this week and I had limited time to play. There is a shape that absolutely screams to be assembled from these pieces - I tried and tried to assemble it and got nowhere. Back to the drawing board and time to totally change my approach - think© differently which is not one of my strong points. It took me a couple of evenings of play before I had my Aha! moment. It really is quite elegant and, in the end, not as tough as I had imagined but really quite clever.

Tube in Cube

Tube in Cube by Volker Latussek
The name of this was at the suggestion of Allard who I assume must have helped with some prototyping. This name is much better than the original and whilst the pieces are not hollow, it is a good description of what needs to be done. Dr Latussek was heavily influenced by the now classic puzzle by Vesa Timonen, Lox in Box which has cylindrical wooden pieces to be packed into a tray. Volker with his amazing 3D design skills really wanted to turn this into a more difficult packing puzzle more than just fitting pieces into a tray. When he knew that I was going to receive a copy he contacted me with his origin story:
Place the eight logs into the box.” This is the simple goal of the wonderful packing puzzle LOX IN BOX by Vesa Timonen. These round rods, beveled on one side, are just crying out to be twisted out of the plane. I wanted to find eight round rods that would fit into an open cube-shaped box. And to do it in a unique arrangement. For this job, I needed to understand the shape of these round rods. At times I was convinced a nice mix of eight round rods would fit into the cube in a particularly clever way, only to learn that by tilting, rotating and swapping, other fillings could be obtained. Those round beveled rods can hurt. In the end, a mix of round rods with only two different lengths won out. Unfortunately, after that, I wondered why I wasn't using my typical box. A new problem was formulated and an intensive collaboration with Pelikan ensued.

The result is TUBE IN CUBE. For this, one round rod had to be shortened. This is not pretty, but in return the round rods unfold their full beauty in the restricted box, at least the part I was allowed to discover. If you want to experience the beauty of the round beveled rods, I highly recommend practising with two rods first and only then successively increasing the number...and so my story ends as it began: “Place the eight logs into the box.
An amazing design and wonderfully brought to life
Volker was not wrong! This puzzle is a fabulous creation and is tremendously difficult without being impossible. The shapes scream out for experimentation in pairs and different combinations but assembly outside the box is impossible because everything is very unstable and rolls all over the place. However, despite this, you get enough ideas to then start assembling in the box. It is also a dexterity puzzle - the pieces just do not want to stay in place (in fact I have really struggled just to get the thing back to the travel position). As you play, it becomes obvious how the short pieces can interact and then it is a matter of working out how to get them inside. Lots of different ideas spring to mind as you play but always the last piece cannot be inserted - not just because the lid gets in the way, but because there is simply no room inside for that piece. Eventually there is an incredible Aha! moment and with a lot of fiddling about the final piece can go inside. The precision is amazing and they only just fit inside the box. This is also my pick from the bunch.

Moving Castles

Moving Castles by Tamás Vanyó
Yes, I am sure that this is one of the puzzles that you would expect from the amazing design brain of Tamás Vanyó! This is the third of his castle collaborations with Pelikan. I have to admit that I have not had much time to try this one yet. It consists of 9 pieces to fit on a frame. Each piece has the same basic structure with a waist that is 2x2 voxels in size which will fit into the frame and then on either side of that waist are the wonderful characteristic castle shapes based on a 3x3 grid. This puzzle is not quite as straightforward as that because they have added an extra twist. There are 8 ways to place the pieces on the frame but the extra challenge is to organise them in such a way that can walk through the entire castle from START to STOP (i.e. create one continuous path using both sides of pieces). There is a start mark on the frame and a small arrow which serves as a sort of "checkpoint" telling you to flip over as it's on the opposite corner of the start and end. 

So far I have managed to assemble all the pieces on the frame which alone was a nice fun challenge but I have certainly not gotten anywhere near creating a path all the way around the puzzle from beginning to end. I think this might well take me several weeks to complete. The assembled puzzle on the frame looks like one of MC Escher's impossible 3D creations and even unsolved looks beautiful on display.


There are some absolutely amazing puzzles here and all have been created with the precision we have come to expect of Jakub, Jaroslav and their team. You will not be disappointed! My favourites from this batch are:
  1. Cerberus - just for the wonderful progressive movement and because I am addicted to interlocking cubes.
  2. Tube in Cube - Volker does it again and uses a new shape to make something incredibly clever.
  3. Timburr - I love Christoph's special burrs.
  4. Turtles - the Aha! moment made me laugh out loud.