Aris 3 from Osanori Yamamoto |
There is something about Yamato post... it is just super efficient! I have
stuff ordered from the US and it takes weeks (in fact my order from Cubic
Dissection seems to have been misled by customs here 😢). My order from
Osanori arrived 4 days after he posted it. This seems to happen for almost all
Japanese post - it's amazing. The puzzles always arrive with an alternative
packing which os quite neat. This one required a rotation to remove all the
pieces. I have 3 relatively complex Walnut pieces to fit into my box in such a
way that the openings are completely filled. This time the box has some
diagonal edges which significantly inhibits sliding movements and also
enlarges the area that must be visibly filled. This was going to be a real
challenge.
As usual, I start looking for cubic shapes and realise that there are a LOT of
them. After I had solved the puzzle, I went to Burrtools to model it and found
that there are 65 3x3x3 cubic shapes that can be made from these 3 pieces.
Thank heavens for the restricted opening that creates shape constraints. The
requirement for a 2x2x1 top face and diagonally opposite 2x2x1 at the bottom
of a column significantly reduces the assemblies to choose from. I had found 6
or 7 myself and BT tells me that there are 14. You would think that having a
puzzle with 14 possible assemblies to work through would be a hellish puzzle
but no...Osanori has thought about it and the most complex shape has been
designed such that possible ways it can be inserted into the box is very
restricted. I quickly found that only one assembly seemed to have this piece
in a suitable orientation. I was off! Time to work out the sequence of
movements. Oh boy - this was really quite a challenge. I usually try it
outside the box, first of all simulating the disassembly of a supposed
finished puzzle and I really struggled - I just didn't have enough
fingers/hands to hold the pieces in the positions they needed to go. I thought
about asking Mrs S to hold a piece whilst I moved the others around it and
quickly thought better of it - she was unimpressed with my deliveries and I
didn't want to risk a Whack! Ouch! In
the end I had to abandon my approach and decided to just go straight for an
assembly. It looked great as I got all three pieces partially into the box
with various tails hanging out through the orifices. It looked like I just
needed to "do the usual dance" to settle them into place. Improved
really hard to do it and I even abandoned that approach for a while thinking
it was the wrong assembly. I went back to forming cubes again and could not
find a better one. After 4 days of trying, I finally upset the sleeping cat by
shouting my success.
There was one particular move I had missed. The pieces pirouette around each
other whilst the complex one moves in and out in different directions making
room. The disassembly level is 16.2.7 which is an astoundingly difficult level
for such a seemingly simple design. This was puzzle heaven!
Gem by Osanori Yamamoto |
When it arrived, I was staggered by the beauty of it - the picture doesn't
show it's sheer vibrancy very well. The other impressive feature of this one
was the texture of the finish on the pieces. They are just silky smooth. The
only other craftsman I can recall who finished wood like this was my friend
John Devost
who (when he was crafting) used a triple buffing technique which left the
pieces of wood so delightful to touch. Alas, I no longer have any of John's
toys in my collection. I knew that this one was going to be wonderful just
from the sensation alone.
The 3 rings of wood need to be inserted into slots in the cube with one at
90º to the other 2. I immediately saw a problem - all three pieces are 2
voxels thick and one of the slots is only a single voxel wide. There was a
lovely aha! moment as I found that for just one of the pieces and nice
sequence of rotations allowed an insertion of one of them. Interesting. Next
it was time to work out the other 2. What relative positions should they be
in and how to get them to interlock with the other piece?
Absolutely delightful sequence |
My friend Neal, might have sent me
some new Tics and I had better play with them to justify their arrival
before Mrs S breaks them up into matchsticks! 😱