Showing posts sorted by relevance for query lohe. Sort by date Show all posts
Showing posts sorted by relevance for query lohe. Sort by date Show all posts

Sunday, 7 December 2025

PuzzleMaster Has An Opportunity For You

Crazy Lock designed by Christoph Lohe
I was contacted a few months ago by Leon Stein, one of the co-owners of PuzzleMaster, to ask whether I would be interested in looking at their upcoming Kickstarter campaign puzzles and would I show them off to the world? Well, I have some experience of the PuzzleMaster Kickstarter puzzles and have heartily recommended them each time. Of course, I agreed. I would be foolish to pass up the new creations and I thought that you, my readers, would want to see my opinion. The Kickstarter is now up and running with a close date of 31st December so if any of these interest you then get over there and place an order. They have reached the minimum to actually go ahead and so this will definitely be happening, with the aim of shipping puzzles to backers in June/July 2026.

This time there are 3 main puzzles in the campaign plus there are 3 add-on puzzles (ones already on the PuzzleMaster store) which can be added to your pledge to get a bit of a discount.

The first one I tried was the Crazy Lock. It's a burr in the shape of a lock - I can't resist burrs, I have a passing fondness for locks and a burr lock is irresistible to me - in fact I have quite a lot of them now. I wasn't disappointed and neither will you be - it is great.

The box states that it is level 8 on the PM 5 to 10 scale and I actually think it should be rated a bit higher at 9. I significantly struggled to dismantle it. The design was made by the late Christoph Lohe and was originally published as Burlock E. 

I have actually solved Burrlock E many many years ago when I bought it from Eric Fuller (he also adored Christoph's designs and always produced great challenges). Way back then I described it as a serious challenge for mere mortal puzzlers like me and it is still that. With a level of 26.2.3.2.2, this has a really significant difficulty to it. It took me about a week to dismantle it and then I was unable to assemble again without Burrtools. Creating the file was a bit of a challenge but at least I was finally able to put it back together again. For those of you who are burr assembly experts, there is an alternative assembly (level 26.3.3.2.2 which has the key hosizontally in the lock at the end. Double the challenge for one puzzle.

Burrlock E from Cubic Dissection (2017)



Fortress of Shadows by Christoph Lohe

The next puzzle for me to play with was the Fortress of Shadows burr (also by Christoph) it is quite diminutive (1.75 x 1.25 x 1.25") but beautifully made with gold coloured burr pieces trapped inside a black anodised castle with 4 turrets. These turrets very much limited the movements of the pieces. I spent another 2 weeks working on this one. You can see everything that is going on inside but it is still a hugely difficult challenge with level 30.1.2 as the pieces move back and forth progressively making space to allow the first piece out. It looked familiar to me but I couldn't place it properly. I did go back and check my photo database and realised that Pelikan had produced a different version of the puzzle 5 years ago (called Castle) which I had reviewed here - that one had not been terribly difficult but this version is a significant advance in difficulty. 

I would be very impressed by anyone who could assemble it from scratch but I definitely needed a Burrtools file and this was a fun one to make and follow in reverse to fully assembled.

The original Castle by Christoph - similar but different to the Fortress of Shadows



Twisted Logic by Yavuz Demirrhan
This rather beautiful 4 piece anodised burr looked very familiar to me and, as with all the other puzzles in my collection, I had a vague memory of owning it and solving it once but the process was a mystery to me. Looking back I realised that the original version was a puzzle I had actually solved twice. Chiasma was a design by the amazing Yavuz Demirrhan that PuzzleMaster had made before in a very limited run that I had reviewed back in 2020 and had compared the metal version with the original wooden one from Pelikan. In fact the handmade metal version is still available on the PuzzleMaster site but is not cheap. The newer one will be mass produced for a fraction of that cost.

I recalled that this one had been incredibly difficult. There are 4 identical board burrs that gradually extend apart and then sequentially line up the exit points to allow removal of pieces. I found it very confusing to work on and this is not made easier by the need to prevent the pieces rotating. I don't think there are any rotational shortcuts but it needs you to keep the pieces aligned to move them around safely. It's quite fun to explore but I would suggest that you use a back and forth approach to make sure that you know what you have done as it's easy to get lost. At one point I had the pieces quite extended apart from each other and in a dead end and struggled to return to the beginning. The rather low solution level of 16.4.6 would sort of imply that it shouldn't be too hard but don't be fooled - it is a huge challenge to move around, control the pieces and keep track. The solution is really not obvious. 

Chiasma - Pelikan version 
Chiasma - original PM version
I will return next week with a review of the add-on puzzles from the Kickstarter campaign - this is definitely well worth inverting in. They are great challenges, beautifully made and an amazing price.



Sunday, 22 November 2020

Just in Time For...

Sunday to Post an Article or For You to Buy Xmas Presents

Upcoming puzzles from the New Pelikan Workshop
I have had a few days off work this week which proved to be very welcome. An odd time to take leave you might think but I had to take my allowed leave before December or lose it completely so here we are...Late November, miserable weather and a pandemic meaning nowhere to go. Luckily for me, Jakub let me buy advance copies of his upcoming releases to play with just at the right time.

"Which ones would you like me to write about?" I asked. 
"All of them." he said.
GULP! The pressure was on.

The five puzzles this time are stunning as you would expect and a very nice set of challenges. Whack Ouch! Mrs S was really not very happy with me or Jakub as I spent several hours a day this last week "wasting my time with toys" and not doing anything useful around the house. I, on the other hand, have had a very restful few days desperately trying to solve these in time for today's blog post. The pressure is really on as I don't want to delay Jakub's business and most importantly don't want to be responsible for delaying you getting your hands on these wonderful new challenges.

Castle by Christoph Lohe

Castle
This puzzle is the only burr in the upcoming release. It is absolutely stunning made from American Walnut and Cherry - it even has turrets and small windows in the walls. There are 4 burr sticks to be removed from the Walnut frame. It is a classic design by Christoph Lohe who over the years has designed many many burrs with absolutely fascinating shapes and a wonderful move sequence that you discover by careful exploration and deduction. Each movement reveals one or more options for further travel and some very nice clever moves that give a great Aha! feeling when found. The sequence is actually very logical and not too difficult - this would actually be suitable as a caged burr for beginners. Having removed the pieces then it is perfectly possible to scramble them, leave it for a while to try and forget the sequence and then try to work out the reassembly from scratch. That part took me quite a while but even a numbskull like me could manage it.

Four beautifully made sticks to fit inside the frame

Santa by Dr Volker Latussek

Santa
Dr Latussek must have a mind like a steel vice! I have no idea how he keeps coming up with these amazing packing puzzles! I have so far completely failed to solve the final one in the Euklid series (for Nick) and then I receive another beautiful challenge. This consists of a 5x5x5 box beautifully made from purpleheart with 12 Acacia pieces to be fitted inside flush with the top surface. There are 2 different types of pieces and each of which consists of 10 voxels. This means that there will be some holes inside but not very many. I am terrible at this sort of puzzle because I just don't know the right way to think - I tend to make lots of random attempts which as you will appreciate seldom gets a puzzler very far.

The random positioning did reveal a few interesting ideas and whilst I was muttering to myself about it, Mrs S suggested I "shut up and get on with it without disturbing her". She could not understand why I was struggling but refused to try it for herself. In trying to explain the difficulty I realised that the best approach to this puzzle is to work out how best to distribute the holes and then find a way that would enable this. Even knowing that crucial fact does not actually help a whole lot. After a little thinking© I noticed something and tried something new. OMG YES! That was really clever. This is a very approachable puzzle and well worth adding to your collection. Now I really must get back to Euklid for Nick! A very minor spoiler is hidden behind the button - only press it if you aren't bothered by a minor giveaway.



Super Magnetic by Alexander Magyarics

Super Magnetic
I have to say up front that I am totally addicted to Alexander's designs! There is something truly special about them. He has taken the type of puzzle designed by Osanori Yamamoto (see below) and added a whole new dimension of fun to them. This consists of an Acacia box which has a plus shaped opening on the top and a minus shaped opening on the opposite side and 4 rather interesting but fairly simple shapes (made from Wenge) to be placed inside such that the opening is completely covered. 

Straight away it becomes clear that there are some serious constraints preventing the pieces being placed inside easily. The big piece requires 4 moves to place it inside and the presence of the other pieces inside will seriously hamper this but placing it first almost completely blocks the entry for the other pieces. OK...time to think© yet again! I thunk quite a lot about this and did it "outside of the box" yet still it didn't help much. With my pea-sized bwain hurting quite a lot, I tried a systematic approach - there are only a few ways that 2 of the pieces can be arranged inside so how can the others be arranged around them? This process did actually help me a lot but still left me with a few options to go to trial and error. 

After 4-6 hours, I finally got it - the Aha! moment was ecstatic and then I tried to put the pieces inside only to realise that there is another dimension to this wonderful puzzle! It takes quite a bit of dexterity to actually make your planned solution work. Fingers won't fit inside easily alongside the pieces and they need to be slid around by gravity all whilst preventing rotational moves which can block things. At one point I had a horrible feeling I had it all jammed up but finally managed to get to the solution. 

I cannot believe how difficult that was!!
Undoing the solution was just as much of a challenge as putting it all inside. This was wonderful!

Triple 4 by Osanori Yamamoto

Triple 4
Oh yes! I love it when Jakub brings out more of these. Osanori is the master of the "simple" packing puzzle. Simple because it is just a small volume to be packed (and often not even fully packed) and often with pretty large entry holes to get the pieces through plus a hole in the opposite side to allow more room for manoeuvring. This version of Triple 4 is made with a Mahogany box and Ipe pieces. It's quite lovely!

This one has a giant big entry hole so should be pretty easy! Maybe for you it is but for me...oh boy! The pieces are relatively complex placing real constraints on the ability to insert them and the diagonal cuts for the hole is a significant restriction to movement. With only a single voxel clear at the opposite side, this made using it to make room rather more complex than expected. Making a cube shape outside of the box was remarkably easy - too easy in fact! I found loads and loads of cubes and many of them met the criteria to fill the holes in the box (after solving it, I put the shape with restrictions into burrtools and there are 26 possible cubes). This approach was going to have to be modified. Maybe I should start with looking at the restrictions for the entry method? Yes, that might just help. After about 4 hours whilst watching TV with Mrs S, I had a major breakthrough and it was solved! Yesssss! Brilliant design!

That is quite a challenge!

Pentaring by Osanori Yamamoto

Pentaring
This simply stunning puzzle from the fevered brain of Osanori-san is made with a Zebrano box and some very vibrant Padauk pieces. Here there are only three pieces to be fitted inside but they are fairly complex and there are 2 rather large holes diagonally opposite each other to be filled at the same time. That single diagonal wall on the entries will prove very important. 

Initially I could find several ways to make the 3x3x3 cube but I couldn't for the life of me find an assembly that would end up with the opposite corners filled. It took me a couple of hours to find a potential assembly only to be stymied by the realisation that one of the pieces was oriented in such a way that it could not be inserted inside the box at all. Back to the drawing board.

This morning I was starting to worry that I would not have anything to write about today - I didn't want to split the post about these up as that's not fair on you and I had nothing else ready. In a frenzy after breakfast this morning, I tried this one again and again and again! I had missed an alternative cube assembly - this was easily done because the positioning of the pieces was particularly unintuitive. Having found a new shape, I had to find out whether there was a sequence that could fit it into the cube frame. Again, I struggled but just in the "nick of time" I solved it so I can reveal them to you. There is a very minor spoiler in the next picture so I have hidden it from you behind a show/hide button:



This is a wonderful challenge with a fantastic Aha! moment.

All of these should be released by Jakub and Jaroslav on the Pelikan Puzzle store within the next week or so. I suggest that you tell your significant others to buy them for you for Xmas or better yet, you do what I do and buy them yourself and let them know that your present is sorted! If you miss out on the selection from them then I am sure that they will also soon be available from PuzzleMaster amongst their enormous Pelikan selection.


Happy Thanksgiving to all my American friends - enjoy your celebrations and time off. Take care everyone! Be safe out there. It takes no effort to put on a mask and it will help prevent this blasted virus spreading further. 



Sunday, 5 December 2021

Is it too late? Xmas Puzzles From Pelikan

9 puzzles arrive - the race is on!
On 23rd November a package arrives from the Czech republic...yes, Jakub and Jaroslav have done it again! They have been beavering away to produce a bunch of new toys for puzzlers the world over to enjoy as Xmas presents. I unpack, photograph and admire and begin to play - yes they are all simply stunning! What more would you expect from such masters of their art? After my initial email back and forth about which ones need me to write reviews, I am asked if I can write something about them all for their website and can I do it in 6 days? Gulp! Erm! probably not but I might manage something within 9 or 10 days. What was the reason for such awful dereliction of duty to the puzzling world and Pelikan? Well, there is quite a lot of work to be done in hospitals these days and at the end of that week, I had to go to Edinburgh to visit the outlaws. A journey from South Yorkshire to Edinburgh takes a minimum of 5 hours and this time took 7 due to road and weather conditions (England gets caught by surprise every single time it snows!) I would suggest that you subscribe to Ivan Danik's YouTube channel - he gets them a few days before me (due to being in Europe) and can advertise them faster than me.

But, I set to on them and managed to get most of them solved by Monday evening and sent off my spiel to Jakub for the website. They went on sale a couple of days ago and quite a few have sold out already. If my blog is the only way that you get to see them then I do apologise - I did show off a photo on Facebook and if you follow me there you might get advance notice.

Mini Lock 2

Mini Lock 2 by Christoph Lohe
Mini locks - a lovely pair

Minilock 2 is extremely cute, just like the predecessor. This delightful puzzle is not terribly difficult. It consists of a key, a shackle and 2 burr sticks. It requires only linear moves so do not try to turn the key. Like all of Christoph Lohe's creations, it is a lovely little puzzle to explore. Finding the correct path is more fiddly than tough but is a nice little diversion which at the end left me astounded at the precision required to make something like this move so smoothly. It also looks gorgeous and will be very nice on display in any collection. 

Just amazing precision - everything slides like a hot knife through butter
Reassembly from scrambled pieces is definitely possible (although it took me a whole evening). 

Christmas tree

Xmas Tree by Stephan Baumegger
I can't have a Christmas tree at home because the last time we did have one it was destroyed by the cats in a most upsetting manner. They are absolutely fascinated by it and whilst tinsel may look funny going in the front end, it very much is NOT funny when it exits the other 😱😱! This year, however, I shall have a Christmas tree on display in my living room! It will be on my mantelpiece...it is a beautiful design from Stephan Baumegger (go and explore his FB page here - it is wonderful). It looks like a burr puzzle but initial exploration shows that it is more like a wood chuck puzzle. A piece slides and then another and then I got stuck for a bit. After a close look at what was revealed I was able to proceed and after that quite rapidly had a pile o'pieces. The disassembly probably took me 10 minutes and was quite fun. 

Not really a burr - I classified it as an interlocking puzzle
The real challenge is to reassemble it with all the colours in the right place. The first couple of times I put it back together with great satisfaction only to realise that the light cubies weren't all aligned properly. It took me an extra 5 or 10 minutes of fiddling around before I got it right. This is a perfect seasonal gift and a nice little challenge for the new puzzler. 

Den cube

Den Cube by Osanori Yamamoto
This lovely cube is stunningly made from a maple frame and 3 interlocking bright yellow Garapa burr pieces. The aim, obviously, is to separate all the pieces from the frame but they are quite well interlocked and despite quite a lot of possible movements (all of which are beautifully silky smooth), in almost all directions, they seem impossibly intertwined. Being systematic allowed me to find one pathway that looked better than the others and on we go. This is very like untying a knot whilst it is inside a box that you can't quite see inside of. It's actually a lot of fun. 

I didn't realise until taking this that the 3 sticks were identical
Having taken it apart I tried to put it straight back together again and couldn't do it. I had forgotten one crucial part and had to work it out from scratch. Even that is possible for the experienced puzzler with a bit of thought and an extra hour on their hands. A wonderful challenge. I have now reassembled this from scratch a few times and it is quite a fun challenge - the disassembly will make it good for new puzzlers and the assembly challenge for experienced burr solvers.

Bison

Bison by Jack Krijnen
Not a model of the mother in law!
A first look at this puzzle leaves you absolutely stunned - it is breathtakingly realistic! The intricacy of the design and manufacture is incredible. I am amazed that this can be produced in any numbers and indeed, Jakub did tell me that it was very difficult to produce. Jack Krijnen designs some wonderful puzzles and this year he produced a very small run of these Bison puzzles and then allowed Pelikan to make some more. This is a new category for me. Kumike is a very old Japanese tradition but not something I've ever played with before (apart from very simple plastic puzzles as a child). My friend Frank is a world expert on these - have a look at his very extensive site here. 

This is a delight to play with
It is not a terribly difficult challenge but is an absolute delight to look at, hold and to dismantle. There is a nice surprise inside. Whilst not hard to do, there is something compulsive about it and I keep dismantling and reassembling it with a big smile on my face. It is not suitable for young children or clumsy people as the interlocking sections are quite thin and could be broken if inadequate care was taken. 

Ronde

Ronde by Dr Volker Latussek
I am absolutely terrible at assembly/pattern forming puzzles and anything by Dr Volker Latussek is going to be a challenge so I approached this with some trepidation. The aim of this is to assemble the 5 pieces so that the puzzle creates 5 whole yellow (Garapa) cubes amongst the Wenge cubes and also incidentally is self supporting. All of the yellow cubes have been cut in half diagonally and attached to the whole cubes oriented in different directions. This means that an assembly appears to be progressing nicely and then suddenly the final piece positioning is either blocked or just won't meet up where it's needed. This could be solved by brute force trial and error but there's no fun in that and the best approach after a little experimentation is to think© and actually plan it out. It's not terribly hard but it's quite a pleasant diversion. This is suitable for kids/newbie puzzlers as well as experienced solvers. Dr Latussek contacted me to tell me that he intended this as a beginners puzzle but I still really enjoyed it.

Tutu

Tutu by Dr Volker Latussek
This puzzle was designed by Dr Latussek as a tribute to one of the best packing puzzles ever designed and made. Volker and I agree that the 4L puzzle by Yasuhiro Hashimoto is an absolutely tremendous puzzle. I recall that the 4L took me a very long time and it was with some considerable trepidation that I set to work on this - at least 2 other packing puzzles from Volker remain unsolved by me so far (Euklid for Nick and Fermat). So, you're all wondering, how does it compare? Right up front, I have to say that this puzzle is absolutely FABULOUS! If you have solved 4L then it will not be quite as challenging but it has a couple of truly lovely Aha! moments. If you've never done 4L then expect a really fun challenge with thought and planning. It is also made perfect by the sheer quality of the woodcraft and the wonderful choice of woods used. 

Solved! No spoilers here.

Serpentarium

Serpentarium by Lucie Pauwels
Another stunning creation by the incredibly prolific Lucie Pauwels. She always produces designs that are interesting to look at either as pieces or as an assembled puzzle. This has been made by Pelikan in Wenge with a Padauk box and is simply stunning in the depth of colour. Of course the woodwork is superb. There are 4 different snakes along with 2 smaller pieces (?eggs or ?food) to be placed inside the caged box. The entry is very limited and forming the 3x3x3 cube through such a small set of holes is a big challenge. 

Solved it
This took me quite some time as my intuition for where to place the small pieces turned out to be wrong. The solution level is not terribly high but it is a significant challenge worthy of any decent puzzler. It also will look gorgeous on display. I had left it in the solved state for a few days and it actually proved a considerable challenge to dismantle as well - I would suggest storing it unsolved.

Moose

We have two Mooses (or are they Meese?)
Both are absolutely gorgeous
Moose is another fabulous creation from Alfons Eyckmans. He has designed quite a lot of members of the Burr zoo and each one is a wonderful challenge. Most are not too horrifically difficult but are certainly a very decent challenge that will take all but the very best of burr solvers a pretty decent amount of time. As I write this for Jakub, I have spent 3 evenings working on it. I've made some decent progress (I think) but have not yet solved it. The puzzle is available in two versions. There's the standard one with alternating Maple and Purpleheart burrsticks and then there is the gorgeous version made using the same woods but created in a totally new way for Pelikan...the burrsticks are all made from Purpleheart and they are edged with bevelled Maple on every face. This produces a stunning looking puzzle. The moose hidden inside the 12 piece burr (both versions) is made from American Walnut. Obviously the solution is unchanged with each version but the look is extremely different and very striking. If you have a lot of burrs on display then the special version will need to be placed front and centre. I hope to solve this in the next few days. 

Well, a few days have gone past and I have still not managed to solve it - here's hoping!


I apologise for my delay - I hope that you all managed to buy what you wanted and will get them in time for Xmas. Mrs S is starting to get upset again because the puzzles are everywhere and not organised in any way (I tell her that I do know where they all are). I really need to find some time to tidy up and organise things better...better than strewn all over my desk. Maybe over the Xmas break? Except I am not getting a break - damn! They will just need to remain spread out everywhere. Whack! Ouch!


Sunday, 21 March 2021

An Entirely New Type of Puzzle?

The recent collaboration between Chris Lohe and Andrew Crowell
Last week's post showed off the recent releases from Jakub and Jaroslav at the New Pelikan Workshop and I am pleased to see that many of you did read my drivel and have bought the wonderful new toys when they went up for sale. In fact two items are sold out already (if you did miss out on anything then I am sure that they will eventually be stocked by PuzzleMaster). I received all 7 of the puzzles and I am always very aware that Jakub is waiting for my reviews before he puts them up for sale so the pressure to solve and write is very high. Luckily for me this time there were two of the batch that were sent to the Zen puzzler himself, Ken Irvine, for review and I did not have to be too fast with these. Ken is a master of the design and solution of interlocking puzzles and is very uniquely placed to give an opinion of the two beautiful lumps of wood and if you read the blurb on the Pelikan site on them, then you already know that Ken was extremely enthusiastic. I did, however, really want to try them and give an opinion for you all (even if I am not sure why you even read my stuff let alone pay attention to what I think).

First of all, let me say that these puzzles are absolutely amazing and you should buy them straight away - unfortunately the Cyburr has sold out already but in my opinion the Chamburr is the best of the two and certainly MUCH more difficult. Stop reading this right now and rush over and buy - you will not regret it.

I have waxed lyrical about Christoph Lohe and his designs many many times over the years - he has a very unique talent for designing puzzles that are just the right difficulty level and really interesting to solve with some very long and difficult to find sequences but always fun to work through - he is almost a savant. Then we are all aware of the incredible effect that Andrew Crowell has had on the puzzle world. He has taken the rather small rarified area of Turning Interlocking Cubes (TICs) into the stratosphere in terms of interest and difficulty. So...when these two incredible puzzle designers team up I just have to sit up and pay attention! This is should definitely prove to be something simply spectacular and YES it is incredible - it is almost like they have developed a whole new category where the interlocking puzzle is combined with the TIC without making something that is impossible for humans.

Cyburr
Starting with Cyburr (this is the one you should pick up first), we have a gorgeous cube made with a Mahogany frame and Maple burr sticks. It has been beautifully finished and the initial moves are buttery smooth. There are a number of choices possible at the beginning and quickly you can home in on the correct path. Some puzzles I find are spoiled by having too many blind ends or some that go much too far before petering out. I like a fascinating sequence with a few side paths to explore but not too much risk of getting hopelessly lost. During the pathway through this disassembly, there is a wonderful dance as the pieces are weaved around each other inexorably towards an exit. The exit this time seems possible at several times as the burr sticks get less and less interwoven but even when one is separated from the pack then it still cannot be simply pushed out. This is where Andrew's wonderful skill has come in...rotations are required. Not too many that it is possible to get hopelessly lost and entangled. He has designed it so that rotations are actually very difficult to achieve and are only possible with exact positioning of all 3 of the pieces within the frame. This is not going to happen by accident - it requires thought©. The Aha! moment is wonderful. Two rotations are required and the pieces are ready for your exultant photo:

Stunning precision on that craftsmanship
The reassembly is a serious challenge! This puzzle cannot be solved by Burrtools but the process of disassembly should take you back and forth enough to lay down a decent muscle memory to allow you to scramble the pieces and still be able to put it back together again. If I can do it then all of you (who are considerably cleverer than me should manage it). I do agree with Ken that this puzzle is probably too difficult to be sent out as pieces to be assembled from scratch - only a very few of us could manage that. The Cyburr has a sequence 38 moves to remove the first piece which is a prodigiously high number especially as 36 are linear before the first rotation is required. If you see this up for sale again then buy it!

Chamburr
Next up is the Chamburr (I am not sure why it is named this but for me this is the "Champagne of the interlocking cubes" - it is stunningly fun and really quite a tough challenge. I did not know at the time that this was the harder of the two and this was the one that I started with. Again it is beautiful with the frame made from Merbau and the three burr sticks made from a lovely warm Pink Oak. It is slightly less aesthetically pleasing than Cyburr purely because it doesn't have the completely filled face that the other does. But it is stunning. The movements of the pieces are smooth and again there is just the right number and depth of dead ends to explore. The Chamburr is slightly easier at the beginning than the Cyburr but gets MUCH more difficult about ⅔ of the way through. With both of these puzzles, Pelikan has made all of the internal edges of the burr sticks and the frames very sharp which I suspect is to prevent any illegal rotations being found but the adverse effect of this is that finding some of the linear moves can be quite hard as the pieces need to be held just right and everything lined up perfectly for them to slide on each other. This can be a little infuriating at first but it does mean that finding the linear moves is more than just pushing and pulling the pieces randomly. It is more that the moves need to be thought out and planned. After 10 or 15 minutes of play with each of these puzzles I came to appreciate the precision and sharpness of these edges and used them to my advantage.

The Chamburr has a couple of very interesting rotations that are possible at about the ¾-way mark and apart from a bit of a panic when I thought I couldn't undo them, I realised that this made for a fun dead end and quite a bit more exploration without risking getting lost. After realising my misstep, I continued. The linear part of the path for this one is VERY complex and several times I got to a point where I could not backtrack without a huge re-exploration of that part of the path. I must have gone back and forth over that section of the solution 10 or 15 times before I understood the dance path of the pieces and could repeat them easily. After 43 moves (amazingly, all of which are linear) the first piece can be removed. This is a stunning odyssey before the remaining pieces can be taken out of the frame with a rotation:

43 moves to take the first piece out!
Despite the fact that the initial part of the solution is linear, this is by far the toughest of the two. It is incredibly difficult to find your winding path through the moves - these pieces dance about in and out of each other and the frame but the pathway is really well hidden. The requirement for the rotations is the icing on the cake - it makes the puzzle constructable and also means that if you get stuck you cannot just go to Burrtools and make yourself a solution file. You HAVE to persevere with it and work it out. It is worth it - just keep trying and you will understand it eventually.

Reassembly is just as challenging - the rotations are easy to find but then you have to backtrack through that very well hidden pathway. It took me several hours over 2 evenings to get there. This is a candidate for one of the puzzles of the year for 2021 - AMAZING!

At the moment the Chamburr is still available here - buy it straight away and if you find Cyburr up for sale again then don't hesitate.


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!