Welcome To The Home Of Despair – DODECASOMA

What happens when you take a 3x3x3 matrix of cubes, attach identical pentahedrons to each side of the matrix so that each pentahedron completely covers one of the matrix sides, define a new cubic boundary to encompass the new shape, slice the space up into into 27 identical bits, and randomly glue up some of neighboring bits back together?  Well, you get a DODECASOMA obviously.  To save you the effort of doing that yourself, Rod Bogart has done it for you so that you can enjoy the formidable fiddly fun of constructing a dodecahedron from 7 dodecahedronized Soma pieces.

DODECASOMA was designed and made by Rod Bogart and used as his exchange puzzle for the 41st International Puzzle Party.  It consists of 7 green 3D printed Soma pieces that assemble into a dodecahedron instead of the normal cube.  The pieces are nicely scored with the outline of the 3x3x3 grid to provide some guidance on how the pieces are aligned.  The puzzle also comes with a stand for displaying the assembled puzzle.  The stand is also useful to hold partially assembled constructions.  And although it is providing a helping hand, don’t expect any useful advice from it.

It all appears innocuous enough but when someone hands you a puzzle that is an anagram for CASA DOOMED, you have to stop and consider the ramifications.  Are there 240 (or 480 – you’re welcome Nick) solutions?  No!  Which is good since you probably don’t need another regular Soma cube although you should have a least one.  Is the solution unique.  Don’t know!  But trying to solve it, it seemed like it could be.

Unlike a plain old boring Soma made from plain old cubes, the DODECASOMA ends up being made from 4 types of shapes which I’ve come to think of as corners, edges, middles, and the core.  They’re really misnomers, but I’m sure you’ll come up with better names when you start handling them.

I don’t know why I was surprised the first time I had 1 last piece to add and it didn’t fit.  Why would I think it would be any different from any other puzzle that I’ve solved?  A couple rounds of that wiped the smirk off my expectations.

It’s also a bit fiddly and you have to juggle the pieces in your hand as you try different piece combinations.  Unlike the typical Soma puzzle with cubic dissection pieces, not every piece will fit nicely anywhere.  However, there are enough places where they can go together making it non-trivial to solve.

Eventually I had it all together and with a bit more effort, I had it displayed on the stand.  At least I didn’t have to try all 10 sides to find one where it would stand without falling apart.

Catch the Wave – Wavelinks

It’s swirly, whirly, wavey, and curly.  It’s Wavelinks designed by Rod Bogart.  In addition to being an excellent puzzle, it also has some appeal as a fidget toy.

Wavelinks consists of 4 identical pieces that when assembled form 2 interlocking tori (I refrain from using the term donuts to avoid connotations associated with Cast Donuts).  There are no hidden features and everything needed to solve it is in plain view.

I first encountered Wavelinks in the Nob Yoshigahara Puzzle Competition  room at IPP38.  I wasn’t able to solve it in the limited time that I had but was duly impressed.  Obviously, I wasn’t the only one impressed since it won a Top 10 vote getter award.

The version in the IPP competition was made by Shapeways, which provides online services for SLS manufacturing.  Upload a design and get copies made and sent to your home.  Before everyone had their own FDM printer at home, this was the best way to achieve rapid prototyping for puzzle development using non-cartesian geometries (I refrain from using the term square to avoid connotations associated with Cast Square).  Even now, although more expensive, SLS is still probably better than FDM for puzzles such as Wavelinks.  You can still acquire copies of Wavelinks from Rod’s Shapeways shop.

I had the opportunity to reattack Wavelinks at an RPP (A Decade of Puzzling - RPP 2019) where someone brought a Shapeways copy that they had acquired.  This time, I was able to solve it fairly quickly while still appreciating the movements required to solve it.

I mentioned to Rod at an NYPP that I thought Wavelinks would make a good Hanayama puzzle.  Turns out that I wasn’t even close to the first person to mention that.  Rod indicated that he had already discussed it with Hanayama and was told that it was not possible for them to manufacture it.  That was disappointing news considering how lovely it would be if made in metal.

Much to my surprise, a kickstarter project was announced in 2022 by Craighill to produce Wavelinks.  Their campaign announcement had beautiful photos and videos of the 4 pieces (I refrain from using the term quartet to avoid connotations associated with Cast Quartet) made in contrasting silver and black.  It was a complete no-brainer to join the kickstarter.

After waiting so long, how is it?  It’s amazing!  Even the packaging is well done.  It arrives in a well designed box with the 2 separated tori situated in a bed of foam.  Each piece is nicely machined and although it can feel a bit fiddly, the movements are smooth.  Having only previously played with the plastic version from Shapeways, it was a shock to actually feel how heavy they are.  1.3 pounds doesn’t sound like a lot until you have to manipulate the piece in your hands.  It’s a real workout.

There is a video in the Kickstarter campaign where the pieces fall into the solved interlocked state (I refrain from using the terms spiral, vortex, and twist to avoid connotations associated with Cast Spiral, Cast Vortex, and Cast Twist).  I suggest that you attempt this catch the wave move.  Once everything is lined up, the pieces really do drop like that.  I’m sure some would consider that video a spoiler, but I don’t think it’s really giving too much away and the appeal of the video is obvious.

I’m very happy that this puzzle was finally released in a format that it deserved and should become available in puzzle shops soon.  I’ve incorporated it into my weekly exercise routine but if you prefer a much lighter copy for your workout, the plastic version is still available on Shapeways.