Showing posts with label Robrecht Louage. Show all posts
Showing posts with label Robrecht Louage. Show all posts

Sunday, 2 November 2014

DCD 2014



Last weekend saw the latest annual pilgrimage to the Dutch Cube Day with puzzlers from around the world (including Hong Kong, Russia and a ton of folks from Europe) descending on a school in The Hague for a day’s puzzling, bartering and buying. Of course it wouldn’t be a proper DCD weekend without a couple of additional activities, so we ended up adding a pair of RPP’s to DCD-proper and it turned into one helluva weekend.

Steve and I flew over from the UK on the Saturday morning and met up with Louis at Schipol. We grabbed the train through to Rijswijk where we had a quick bite to eat before heading over to Rob Hegge’s place for our now-traditional, pre-DCD, Rob’s Puzzle Party. Rob had laid on piles of cake and snacks and cleared his dining room table for us to play on… and soon after we arrived, we had some puzzles out and spread across the table. Over the course of the afternoon our ranks swelled with puzzlers old and new – it was great to actually meet Philipp from Germany after ‘meeting’ him online on puzzle forums and FaceBook.

Philipp had brought along a number of his recent impossible bottle creations as well as his wonderfully named REtrOMAZE handmade in wood. This puzzle is quite an achievement as it’s a fully functioning dynamic puzzle where the dynamic bit operates perpendicularly to the normal plane…very clever and beautifully made.[UPDATE: a mate of Philipp's made the core...]

I’d taken a couple of Yoshi Kotani’s little acrylic cube packing puzzles along and several folks had a bash at them with most people really enjoying the ones with a bit of a twist. One of the puzzlers had a bit of misfortune when one of the more fragile pieces broke while he was packing them into the box – something that Laurie immediately picked up on and for the rest of the afternoon whenever anyone was having trouble with a  solve, Laurie would helpfully ask if they’d considered the Hendrik-method yet?

I spent a while playing with some of Rob’s vast collection of trick bolts… one of which had me particularly flummoxed – Ethel duly picked it up after I’d given up on it and had it opened in minutes.

At one point Wil plied me with a couple of disentanglement puzzles by Jan Sturm – they all looked vaguely similar to a standard set of bent nails that I bought from Sloyd a little while back… but each had a small quirk or two that made the solutions rather different. Somehow I managed to work my way through them all much to Wil’s (and my!) surprise – although the next day he got his own back when he gave me one of them to try again and I singularly failed to separate the nails, so I ended up buying a set from him to torment myself further at home…and then duly solved them in 10 minutes in the peace and quiet of my study!

Our ranks swelled progressively during the afternoon until Rik arrived to take us all across to his place for dinner and some more puzzling – at Rik’s Puzzle Party, which also happened to be in Rijswijk. :-)

We ordered a massive pile of pizzas for dinner and while we waited for the pizzas, Rik began by giving us the guided tour of his puzzle collection spread across the three floors of his home. With glass cabinets full of puzzles virtually everywhere you looked, the tour took quite a while.

Pride of place in a number of the cabinets were Rik’s collection of food-related puzzles – from Karakuri cakes and McDaniel Petit Fours downstairs to the colourful 3D assemblies and sliding puzzles upstairs – all based on sweets or food items – definitely one of the most unusual specialisms I’ve encountered.

The main puzzle room is an absolute Aladdin’s Cave of goodies, with custom-made shelving (all perfectly puzzle-sized) covering most of the walls. It’s staggering to see how many puzzles fit into the shelves… and then there are the drawers below the shelves… Rik’s given a lot of thought to the shelves and their configurability and the result is an enviably efficient puzzle storage system that not only displays them beautifully, but allows direct access to virtually all of the puzzles – something that I had to sacrifice a while back with my somewhat less efficient puzzle cabinets.

Dinner was gratefully consumed by a bunch of hungry puzzlers before we all lapsed back into playing with Rik’s collection, and one or two puzzles of our own that we’d brought along.

The puzzling came to a natural end at around 10pm when we headed back to our hotels/hostels for the night. Once Louis and I had checked into the hotel we headed down to Wil’s room so that I could collect a couple of puzzles I’d ordered. As luck would have it Wil had a few unusual puzzles that required solving or needed playing with so we ended up spending a couple of hours playing with some rather lovely puzzles – some more successfully than others - before finally giving up at about midnight and heading off to grab some sleep.

We woke up at about 8am in spite of setting an alarm for 7:30 … my excuse was that I’d started the day in England, lost an hour travelling to Holland, gained an hour overnight as the clocks changed and somehow the iPhone had gotten confused with what the time really was… we made it down to breakfast before everyone else had left and then wandered across to St Maarten’s ,via an ATM, for DCD-proper.

After collecting our name badges from last year (and spotting Nigel’s there and wondering if he might turn up unexpectedly) and paying our entrance fees, we were all given a free gift of a little acrylic board burr courtesy of Peter Knoppers – the NKC-guys always manage to come up with something small to give to everyone who turns up as a gift – a really nice touch.

By the time we arrived things were already pretty much in full swing with most tables already groaning under the load of puzzles for sale. We found a spot to stow our suitcases and set about saying hello to everyone – it’s always such a pleasure meeting up with puzzling friends you haven’t seen for a few months or for the whole year.

My first port of call on the day was Jack Krijnen who’d brought along a copy of Power Tower for me. Power Tower was his joint design with Goh Pit Khiam that they’d entered in this year’s IPP Design Competition. Since then they’ve tweaked the design a little … actually they’ve tweaked the design A LOT! The competition version had two pairs of interacting sliders, this version has up to three pairs, with enough sliders to set up the puzzle as either binary, ternary, or ANY COMBINATION of the two! There’s also a handy blocking piece that allows you to restrict the number of sliders in the puzzle – so you can have a really confusing mixture of pieces without having to commit to a massively high move number… ideal! I’m well-impressed with that one and looking forward to getting some time to “experiment” with it, i.e. play!

Next up was a quick visit to Bernhard’s table to pick up some puzzles for a couple of my Midlands mates and then across to Michel’s table to grab a copy of the plus-size Crown and Cross – the super-sized version of Goetz’s exchange puzzle earlier this year that he and Robrecht Louage had collaborated on.

With the pre-ordained stuff out of the way I was free to spend the rest of the day wandering, chatting, playing and even buying the occasional puzzle as well…

It was great to meet Splinter (he of Burgh Lock and Swing Lock-fame) who had come along to his first DCD with several examples of his puzzle locks and his Mazerolls for folks to play with and purchase. Several times during the course of the day I came across Splinter among a knot of puzzlers trying to solve one of his puzzles, and seeing the rather large grin on his face while their confusion grew, I suspect that he’ll be back again and we’ll be seeing more puzzles from him in the future.

Tony Fisher kindly autographed a puzzle for me while I told him he was crazy for putting a Petaminx into a glass bowl with a mouth that’s just way too small to allow it in. I didn’t ask how long it took him, but given that just assembling and stickering those things usually takes days, it must have required a significant investment in terms of time. He also had a few copies if his wooden replica Rubik’s cube prototypes for sale at a rather reasonable price and despite not being much of a twisty puzzle fan I found it hard to resist the urge to buy one – and suspect I’m going to have to drop him a note and ask if there are any left in due course. His attention to detail on these replicas is simply stunning – right down to the markings and stickers in the pictures of the prototypes. His huge handmade 4*4*4 cube drew many an admiring look and almost as many offers to scramble it for him … all politely declined, thankfully.

Alfons Eyckmans had a table piled with his wonderful burrs, all beautifully made with some rather lovely exotic woods. He had a steady stream of folks chatting about his creations throughout the day and I watched him effortlessly demonstrating a number of his designs while chatting away – quite impressive!
Goetz was wandering around with a rucksack full of goodies and spent a while demonstrating Namick Salakov’s Design Competition entry from this year Complementary P-arity. It just looks plain intimidating! Made up of several plates and sliders at right angles to one another, they work in different bases, and keeping track of where they go and how, is pretty challenging…although Goetz was doing a pretty effortless job of demonstrating them to anyone who was interested. He is the king of n-ary puzzles though…
Marcel had a huge table full of goodies, including some rather desirable ones – and if I hadn’t already spent more than I should have I may well have added an original Gillen bottle to my collection…

Wil had probably the biggest spread available for sale on the day with several tables covered in plastic crates full of puzzles. His car must have provided a serious packing puzzle to enable him and Chris to actually be able to get into it and drive more or less safely between Venlo and Voorburg. I ended up spending quite a while at Wil’s table idly fiddling with a number of puzzles while chatting with other punters.

Lunch was up to the usual DCD-standard with piles of filled rolls and hot soup available in seemingly endless quantities… along with the tea and coffee with tarts and biscuits that were on offer the entire day. The NKC guys understand the need to keep puzzlers well-fed!

The afternoon saw some great talks from some interesting puzzlers. Rox gave us a talk on puzzling in China, introducing us to a number of the faces behind the brand-names we all recognised and talking about her regular “Boys and Toys” gatherings. Peter gave a rather humorous talk about his quest to design a cubic board burr to use as an exchange puzzle at IPP and G4G (also the DCD 2014 gift) – he really did a great job of building up to his inevitable punchlines that hinged around things being impossible. Tom introduced his open-source software for packing pieces for 3D printing orders and amused us with some examples of just how whacky Shapeways current pricing model is. Rob closed off the session with a canter through this year’s IPP exchange puzzles.

After the talks there was time to watch the final round of the speed-cubing contest (gawd those guys are good!) and do a final lap around the various tables of goodies for sale…

Just before 5pm four of us wandered briskly back toward the station to catch the train through to Schipol where Steve and I grabbed a bite to eat before heading our separate ways back home… another altogether brilliant DCD weekend. 

[Sorry about the dearth of decent pics - my travel camera and I are having a disagreement!]

Friday, 7 December 2012

1 € Labyrinth Puzzle



Robrecht Louage entered his 1 € Labyrinth Puzzle in this year’s Nob Yoshigahara Puzzle Design Competition and my first encounter with it was in the Design Competition room – where it kicked my behind rather soundly.  I had a couple of attempts at it there and failed miserably each time, so when I got back home I made sure I ordered a copy from Wil Strijbos.

The 1 € Labyrinth looks like a classic hidden maze puzzle – there’s a little keyhole-shaped window allowing you a tantalizing peek into a maze milled into the base sheet of wood. The clear sheet of acrylic has a hole drilled in it that carries the one Euro coin ... so you can see it riding in and out and even touch it through the window, but until you find your way out of the maze, that coin is well and truly trapped. The maze is effectively created by the interaction between the horizontal slots milled into the wooden base and a vertical channel milled into the clear slider as a ball bearing trapped between the slider and the base moves between those channels. 

Tilting the ball bearing up and down while moving the acrylic sheet left and right should enable you to navigate through the internal maze ... through to some point where presumably the trapped one Euro coin will match up to the right hand edge of the keyhole, releasing the coin...

Well, that was my theory...

The peep hole shows you three or four lines of the internal maze – enough to give you a fairly good idea of the workings and get you started. You’ll find a couple of areas to explore soon enough and pretty soon you’ll be drawing a mental map of the likely layout inside the invisible sections of the maze. I managed to get a fairly decent mental picture of virtually the whole of the maze, yet I couldn’t find a suitable exit...

And that was where it caught me for quite a while... I was pretty certain I’d narrowed it down to two potential areas that should be interesting, but it wouldn’t open for me ... until I thought a little about the designer, and some of his earlier designs ... and then it opened in seconds – with a great little “A-Ha!” moment.


Robrecht came along to the Dutch Cube Day and had a table set up selling most of his designs at very reasonable prices, and it was great to be able to chat to him briefly (via his son's interpreting skills!) about his designs (Four Steps Visible Lock is still my favourite!) and to tell him how 1 € Labyrinth had totally fooled me until I thought about who’d designed it... :-)

Sunday, 18 September 2011

MPP4


The fourth Midlands Puzzle Party took place yesterday and I managed to con the gang into using our place as a venue yet again so that I wouldn’t have to travel anywhere or pack up any of my puzzles. 
 
Louis, our regular visitor from Eindhoven (and now four time winner of the furthest travelled prize!), arrived on the Friday evening and the puzzling began pretty much as soon as we got back to my place. Next morning the rest of the bunch started arriving thick and fast from about 10 o’clock onwards, and by about 11 virtually everyone was gathered around the dining room table playing with someone else’s puzzle over a cup of tea or coffee. A damn fine start to a good day’s puzzling!

It was great to see a few new faces – Russ and Adin off the Revomaze forum and Jez who’d met Ali and Oli at the 100th Camden Lock Puzzle Party earlier this month. Jez brought his son Charlie along for the day (which included a 5-hour round trip drive - RESPECT!) – hopefully we didn’t scare any of them off! Speaking of scaring people off, it was great to have the return visit of Paul after his first and only appearance at our very first MPP. 

Most people brought a box-load of puzzles along for the day – most people that is, except for Russ, who brought along a set of lock picks and a practice lock or two – in his defence they are all purely for recreational use, and knowing someone with those sort of skills is bound to come in handy one day  ... Several folks had a go at picking the locks on offer and learning a new skill – although it was a bit worrying when Chris Pitt, the designer of those Revomaze puzzles, was found trying to pick a Revomaze – apparently it was only research and he can open them, properly, anytime he wants (and he didn’t inhale)!

When Oli had arrived he produced the Alles Roger that’s been taunting him for a while and placed it in the middle of the table, inviting everyone to have a (figurative) bash at it along with the warning that if anyone solved it, he would be forced to kill them – game on! Several folks had a bash at it over the course of the day and there were several discussions about Brian’s recent blog post on the same puzzle announcing that he’d finally found a really satisfying and elegant solution that didn’t rely on random bashing and shaking. 
Many tried and I’d like to say that everyone failed, if only to avoid getting blood on the carpets when Oli lost it, however over the course of the day, the puzzle appeared to miraculously solve itself ... I think I was the first one to notice it when I picked it up around lunch time – it was facing away from me as I picked it up and as I turned it around, my brain registered that the ball was in the lower channel and then I watched helplessly as it rolled right back to the start as my brain was too slow in telling my hand to stop picking it up that way ... curious ... I told a couple of unbelievers what had happened and asked who’d solved it to be greeted by a Great Wall of silence – presumably Oli’s promise of blood was too much of a deterrent. 
A couple more times that afternoon others noticed the same thing though, and in the end it turned up solved three times, mysteriously, among a crowd of people who all professed not to be able to solve it. (Not quite true – Ali had solved it, but promised he hadn’t been party to the miraculous auto-solving Alles Roger phenomenon of MPP4.) I wonder if we’ll ever know what really happened that day ... No puzzlers were harmed in the making of this story, although we believe the threats were real. 

During the course of the day, Oli separated himself from the mad(dening?) crowd and had a go on Eric Fuller’s Triple Locked Box - and he actually solved the thing! There was virtually no nudging or hinting, he found the doo-hickey on his own (serious achievement!!) and then opened it – tremendous effort Oli!

Most of the Popplocks got trotted out for a play and they all managed to raise a smile as usual – and I expect that Russ is off to scour the inter-web to try and track down a T4 for himself, so if anyone knows of one looking for a new home... 

The puzzling slowed down a little bit over pizzas at lunchtime, although Chris Pitt was chatting animatedly about his puzzles while people passed around his tiny handmade version of a blue Revomaze – that little puzzle is a fully functional version of its significantly bigger brother, machined by hand in brass – phenomenal. If he’d had a spring assembly available I know several people who’d have taken that puppy for a test-drive ... and several people did have a go on his first prototype Revomaze in all its shiny, raw, handmade goodness. 

Later on in the day, Jez hauled out his iPad and showed us a great little puzzle app he’d found called Cross Fingers – a few of us had a go and quite liked the puzzles and found the gameplay to be pretty slick – I downloaded a copy this morning ... just to fill the time while we all wait for the next episodes of Cut the Rope and Angry Birds, you understand. 

One or two people were brave enough to have a go at Gregory Benedetti’s Stand Py Me  - with Chris spending quite a while coming up with a number of solutions that had spare pieces left over or a not-quite-symmetrical assembly in the frame – he got it in the end though...

Roger’s Gartenschlauch and Feuerzueg defeated all comers however ... the former being totally undefeated among our number and the latter falling to only two puzzlers in our merry little band so far – I think... 

The Kosticks’ Sixteen Axis magnetic artwork seemed to put a smile on everyone’s face that played with it, while Shaun’s Karakuri Little Tree box caused plenty of amusement as several hardened puzzlers “solved” it rather agriculturally without realising what they had really done or how the mechanism worked – although in fairness it was a bit loose. Chris’ Confetto and Mini Cubi’s were really big hits as well... 

The 4-Steps Visible Lock was a reasonably popular puzzle on the day with just one grumpy old so-and-so reckoning he was a bit disappointed with it – chiefly because it only has 4 steps – after all, we all know that really good puzzles have at least 320 steps more than that ... :-)
 
Several people managed to go home with some shiny new puzzles – half our order of Makishi boxes had arrived a couple of weeks ago so I was able to dish out a few of those as well as pass on some rather more collectible pieces to Chris and Ali - I got a HUGE kick out of being able to source a couple of Stickman boxes for them – not sure I’ll ever be able to do that for someone again, but that was pretty cool! Big thank you to Chris who delivered my rather handsome Daedalus courtesy of Gregory “rotations are required” Benedetti ... after spending the best part of an hour and a half on it this afternoon, I know exactly how he earned that middle name! 

Despite my best attempts, the Box o’ Bounty actually seems to have grown this meeting – even though several people did help themselves to something from the box, more people tossed puzzles into the box – hey, ho – I’ll try harder next time...

Thanks to everyone who came along and made the day so much fun – thanks Ali for bringing some grub and thanks guys for the wine and choccies. 

In the words of that great philosopher Wallace, “That were a cracking day out, Gromit!”


Wednesday, 14 September 2011

La Cerradura Doble


I noticed this puzzle in the Cubic Dissections Gallery a while ago, so when Robrecht’s 4-Steps Visible Lock won this year’s Jury Grand Prize at the Nob Yoshigahara Puzzle Design Competition in Berlin, I decided that was as good an excuse as any to try and get hold of a copy. Wil Strijbos sent an email around offering some 4-Steps for sale, so I followed up with an email asking if he happened to have any of the earlier ones, particularly the Cerradura Doble, available for sale. Turns out he managed to find one for me and the package was practically on its way before I’d even had a chance to pay for the puzzles – Wil’s fiercely efficient at these sort of things!

I hadn’t paid a lot of attention to the dimensions of the puzzle when I’d seen it in the Cubic Gallery, but when I unwrapped it from its cocoon of zip-lock baggie and well-taped bubble wrap (Wil wraps well too!) it struck me as bigger than I’d expected – making for a pleasant size and weight – and something handy to throw at an intruder, if the need ever presents itself.

A clear piece of acrylic keeps everything together and visible: there are a pair of steel keys marked “UP” and “DOWN” that move in and out of two milled channels in the base and a set of 5 sliders with unique combinations of notches that interfere with the bumps on the steel keys. Your aim is to remove the steel keys by playing with the 5 sliders.

My approach to these sort of puzzles is rather agricultural, not particularly efficient, but generally results in a fairly decent outcome – it also results in a fair amount of play-time per puzzle, which after all, is what it’s all about anyway, in my books.

So I pick one of the keys to focus on and fiddle around with the sliders to get that key as far out as I can … invariably getting to the point where progress is blocked by things that can only be resolved by moving the other key, so switch attention to that one, getting it as far out as possible, until it too is blocked unless the first key moves, repeat until solved. 

Simple. 

Sort of. 

Every now and then you’ll find that you’ll need to backtrack a bit in order to get things freed up a bit, but that’s a small price to pay for a fairly simple approach.

From memory I think I had to backtrack a few times, but not by a huge amount.

The sliders are nicely made and movements on all pieces are smooth and positive – if it looks like it should move, it will, making it a very satisfying puzzle to play around with.

The supplied solution lists a total of 80 steps to completely remove both keys, and I’m guessing that follows the most efficient route possible for the standard starting position. I didn’t feel that my agricultural solution was significantly longer than that, so perhaps Robrecht has been kind to people who adopt my sort of approach of muddling around and only going backwards when they absolutely have to – I can imagine that a less well-intentioned designer could plant some horrible dead ends where the ideal solution was actually rather short, but that the solution would lengthen significantly if you used a strategy of pursuing each key individually until it becomes irretrievably blocked … don't you dare get any ideas!
 
I haven’t played around with the idea yet, but it looks as through the keys could be swapped and / or flipped, and removing the acrylic plate would enable one to scramble the keys – which might present some different challenges … something to experiment on in the future…

Overall, a really nice, well made puzzle with a satisfying solution – not too complex, definitely accessible for most … nice one!