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Wednesday, September 25, 2019

Playing With Fire - Oskar’s Matchboxes


Matchbox Puzzle by Oskar Van DeventerWhere do you keep your matches?  If you’re a puzzle collector, you keep them in Oskar’s Matchboxes.  To help you store your matches, every 5 years Eric Fuller releases a run of Oskar’s Matchboxes: 2005, 2010, 2015, and now planned for 2019.  I guess that we have a lot of impatient matchstick holders that can’t wait until next year.

If you couldn’t guess from the title, the Matchbox Puzzle was designed by Oskar van Deventer. With the new batch planned to be released soon at Cubicdissection, I decided to pull my copy out and revisit it.  The hardest part was finding it.  It was in the last box that I looked in (Have you ever really appreciated how useless some statements are?  Of course, it was in the last box I looked in.)  My version is not a work of art, lovingly crafted by the cognoscenti of wood manipulation, but the version made by Philos, which is a decent looking fully functional version.  The main difference is that the drawers of the Philos version are just solid blocks and can’t store matches.  The puzzlewillbeplayed site also illustrates the drawers as blocks with the side representing the open part of the drawer facing up in the images according to the version made by Cubicdissection.

Matchbox Puzzle PiecesThe puzzle is not that difficult and takes 5 to 10 minutes to assemble.  This is definitely an assembly puzzle, so if you receive it assembled, have someone else take it apart.  The orientation of the pieces has a certain property that makes assembly a quicker process.  No, I’m not going to tell you what that is.

The real challenge is to figure out how to put the matches in without spilling them everywhere.  Since the puzzle doesn’t come with matches, try ball bearings instead for a little more fun.  It is definitely possible to accomplish this task.  However, there are 2 solutions: one that allows you to fill the boxes as you are putting them together and one that doesn’t.  Don’t blame me for all those ball bearings rolling around on your floor.

Can you make a matchbox puzzle with more than 5 matchboxes?  I’m glad you asked – Yes.  In fact, in 2015 Eric Fuller released Matchbox Play 6, designed by Olexandre Kapkan, and consisting of 6 matchboxes.  Unfortunately, I have not had the opportunity to play with this version, but Cubicdissection indicates that there are multiple solutions and that it’s easier than Oskar’s original 5-piece design.  Maybe I’ll glue up some matchboxes and give it a try.

If you miss the opportunity to get a copy of Oskar’s Matchboxes from Cubicdissection, you could always get the inexpensive Philos copy from Puzzle Master.  You can find it here.

Wednesday, September 18, 2019

5 Is the Magic Number - PenTIC


PenTIC by Andrew CrowellA lot of puzzlers are now finding themselves attached to TICs.  You can blame Andrew Crowell and his TIC incubator.

Andrew is the current grand master of designing Turning Interlocking Cubes and has generated many amazing TICS in the 4x4x4 cubic dissection format.  Many of his designs are a product of a program that he wrote to help produce his designs.  It’s astonishing that a program can produce the types of complex rotations that are found in his puzzles.

PenTIC is a level 5.1.8.5 puzzle designed by Andrew Crowell requiring 5 Rotations.  Andrew places this puzzle in the medium difficulty category for his puzzles and recommends taking this as an assembly challenge, so if you have the opportunity, order it unassembled.

The format of this puzzle is one large frame piece with other four pieces that have to fit within the frame.  Unlike HypnoTIC, reviewed earlier in, Mesmerized by – HypnoTIC, the location of the pieces is not that difficult to determine.  The difficulty is in determining how to get them there.  Of course, the rotational moves required to assemble this puzzle are the highlight of the solving process.  It took me a little bit of time to determine the rotational sequences required and I thoroughly enjoyed working on it.  Not that difficult, but very enjoyable.

PenTIC PiecesWhy did Andrew call it PenTIC?  In his own words: “PenTIC (5 is the Magic Number) requires 5 moves to free the first piece, 5 separate rotations, and is made of 5 pieces with 5 different wood types.”  I also made sure that this was the 5th paragraph to ensure that there were five 5s.  I think that’s enough 5’s to justify the name. 

The version that I have was made by Andrew himself and is a beautiful puzzle made with Maple (the handle), Zebrawood (the cat), Wenge (the twisty T), Yellowheart (the corner), and Tigerwood (the cage) with a teak oil finish.  (Piece names gratis from my wife, who likes to attach identities to pieces and provide an accompanying story for the steps of the solution.)  The pieces are all nicely beveled and the largest piece uses dowels to strengthen a few of the butt joints.  The light dowels contrast nicely with the dark piece.

PenTIC is planned to be released soon at Cubicdissection.  You can also find a lot of Andrew's designs being made by Brian Menold at Wood Wonders

Additional information on Andrew Crowell’s TICs can be found in the prior post, Mesmerized by – HypnoTIC.

Wednesday, September 11, 2019

Totally Tubular Dude! - Tube It In

Yellowheart, Bubinga, Wenge, Holly, Maple, Canary, Cherry, White Oak, Pau Ferro, Peruvian Walnut, Zebrano, Purpleheart, Ash, and Paduak, Oh My!  These 14 exotic tubes are all packed into a space that is 2" x 1.375" x 1.5" with the outer Paduak tube contrasting nicely with the inner Ash tube when assembled.

Tube It In was designed by Wil Strijbos and it should come as no surprise that it was originally made in metal before Eric Fuller released the wood version in 2016 on Cubicdissection.

It’s hard to believe that I’ve had this puzzle for 3 years now.  Eric just released another batch of these for 2019, prompting me to pull mine back out.  Although, I stored mine in the orange sash that it came in, it was easy to locate by feel due to its diminutive size and shape.

After pulling it out of the bag and marveling at how beautiful the wood looks, there is no effort involved in unpacking the tubes.  Once unpacked, the variety of woods used to make each of the pieces can be appreciated.  You can also appreciate the work that went into making these pieces.  All the outer edges of each tube are beveled and each tube, even the smallest, utilizes shoulder joints to make a solid bond.  Considering that these pieces will undergo zero stress, it is amazing that this effort was made instead of a simple butt joint.  However, I’m assuming that it is easier to align and glue a shoulder joint than a butt joint.

It takes a little more effort to pack the tubes back up, but it’s not that difficult.  My attack plan, as with most packing puzzles, is to start with the biggest pieces first and work my way down to the smallest.  It took me about 5 to 10 minutes from start to finish.

I originally had a description here of my experience packing the first 5 pieces together, but I got the "What!  You're telling them how to put it together?" response from my wife, who convinced me that what may seem obvious to me may not be obvious to others.  This is certainly not a mistake I would want to make right after a new set of puzzlers receive their copy of Tube It In.  Sorry, you're on your own now.

The tubes slide into each other without any binding.  You can see from the end shot the wide tolerances that were used for this puzzle.  This tolerance was used throughout the puzzle, which should be able to withstand a wide range of environmental conditions.

The new version that Cubicdissection recently offered has magnets that hold the two largest pieces together, which is a nice addition, although I think it would have been even nicer if the magnet hadn’t been exposed on the outside when assembled.  I also like that the wood selections for the different tube sizes have been altered so that you can easily identify the vintage of the puzzle.

Wednesday, September 4, 2019

Off With Her Head! - Guillotine



AAAGGGHHHHHHHH!!!!!!!!!  Off with her head!  The only puzzle that I left unsolved at RPP that tormented me was Guillotine (aka Harun) designed by Volker Latussek.  Just when I thought that I had left all that stress behind me, a package arrived from the UK.  Allard Walker, somehow sensing that I would be starting to recover from my traumatic experience at RPP, strategically mailed me a copy to arrive just in time to prolong the frustration.  I’m lucky to have such good friends.

It turns out that Guillotine was Allard’s exchange puzzle for the Edward Hordern Puzzle Exchange at IPP39 this year.  For those not familiar with the exchange, each participant brings up to 100 copies of a new puzzle design that has not been released in the wild yet, to exchange with the other participants.  This year there were just over 70 participants, so each participant left with 70+ new puzzles.  In addition, a copy of each puzzle is donated to the Lily Library at Indiana University, which now houses more than 34,000 puzzles, generously donated by IPP's founder, Jerry Slocum.

As I explained in A Decade of Puzzling – RPP 2019, when I got back from RPP, I had an epiphany on how to finally solve this bugger.  Overjoyed to finally be able to validate my hypothesis, I eagerly unpacked Guillotine and began to arrange the pieces.  Unfortunately, epiphanies are cheap and this one wasn't worth much.  It wasn't even close.

Guillotine consists of 12 pieces that have to be packed into a 5x5x5 box.  There are 6 planks that are 4x2x1 and 6 additional 4x2x1 planks that have 2x1x1 pieces added on each end (or you can think of it as a 4x2x2 burr piece with a 2x2x1 notch taken out of the middle).  The box has a sliding lid that covers half the box.  It only covers half to allow the pieces to stick out in the unsolved state that it comes in.

After giving up on my erroneous hypothesis, I called it a night to get some sleep before attacking it again.  I resumed the effort again in the morning, and after a short time finally managed to find a solution. Very clever puzzle!

Peter Wiltshire mentioned that there were 2 solutions at RPP, a hard one and an easy one.  I assumed that after all the struggling that I did, I finally managed to find the easy solution.  After another 5 minutes, I found the second solution.  Having both solutions, I’m now assuming that I found the harder one first and that’s why I found the second solution so fast after the first one.

The copy that I played with was made by Eric Fuller and went by the name Harun, which I assume is the name that Volker Latussek gave the puzzle.  Allard’s exchange puzzles were made by ROMBOL GmbH, and I’m told that they sometimes change the names of puzzles for marketing reasons.  So Harun became Guillotine.  Either way, this one is a tough one to get your head into, or maybe I should say out of.

Thank you Allard!

Wednesday, August 28, 2019

Is it Love? - Cast Arrows

Hanayama Huzzle Cast ArrowsHow many different types of love are there?  According to C. S. Lewis there are apparently 4: Storge/Affection, Philia/Friendship, Eros/Romance, and Agape/Charity.  Can you hold all this love in your heart at the same time.  Hanayama seems to think so.  The Huzzle Cast Arrows puzzle has a heart with 4 arrows stuck in it, one for each of the types of love.

I attempted this puzzle at last year’s RPP and didn’t have a chance to solve it.  I wasn’t planning on getting my own copy, but since I was placing an order with Puzzle Master for the Puzzle-A-Month Challenge , I added it to my basket.

No matter how the arrows are moved around, and it is a pain to get all 4 arrows where you want them in the orientation that you want them, it just doesn’t seem possible to extract them.  Do they come out at an angle?  Does more than one come out at a time?  Is there some kind of coordinate motion required?  How can the shape of the cutout in the heart be exploited?  These are just some of the typical questions that arise when struggling with this supposedly simple Level 3 Hanayama puzzle.  Personally, I’d rate this one at Level 4.

Hanayama Huzzle Cast Arrows PiecesAlthough files, pliers, and blowtorches may be included in your puzzle solving kit, there is a solution that does not require any force or external tools.  When you have figured it out and know what to look for, it’s not that hard to remove and return the arrows from the heart.  Once it’s apart, it’s easier to see exactly how it works without all the arrows flopping around.  The solution is easily repeatable and you can play Cupid all day to your heart’s content.

Reuleaux TrianglesWhat I like the most about this puzzle is that it is a great application of the Reuleaux Triangle.  A Reuleaux Triangle is 2D shape that has the same width regardless of its angle of rotation.  You can make a Reuleaux Triangle by taking an equilateral triangle (all sides the same length), and using a compass oriented at each point to connect the other 2 points with an arc that has a radius that is equal to the length of the side of the triangle.

The heads and tails of the Hanayama arrows appear to be based on Reuleaux Triangles and the opening in the heart with the other arrows in the way is just a wee bit smaller than the width of the Reuleaux Triangle.  I leave it to you to figure out how to get past this paradox.

Reuleaux Triangle Arrow

Wednesday, August 21, 2019

A Decade of Puzzling - RPP 2019

RPP 2019, photo by John Rausch

Every year, shortly after IPP, several puzzlers converge on upstate New York to have a picnic.  This year’s Rochester Puzzle Picnic was held on 17 Aug 19.  Since some attendees travel 6 or more hours to attend RPP, people usually start to arrive on Friday and depart on Sunday in order to dedicate the entire day on Saturday to puzzling.  That’s a lot of picnicking!

At some point during the course of the weekend, we realized that this was the 10th annual RPP.  Our gracious host for 10 years in a row has been Jeff Aurand, who allows a motley crew of puzzlers bringing large quantities of puzzles into his lovely home for this grand puzzle extravaganza.  Vast quantities of food, vast quantities of drinks, and vast quantities of puzzles.  What could be better!

Friday

 

Friday is always a lot of fun catching up with friends, some of which we haven’t seen in a while, and setting out puzzles for everyone to enjoy.  This year, a table was set up with some of the puzzles that were in the IPP Nob Yoshigahara Puzzle Design Competition.  Competition puzzles that were at RPP include:

Cast Slider by Vesa TimonenCast Slider by Vesa Timonen – Normally we see some of the design competition entries become Hanayama puzzles.  This is a case of a Hanayama puzzle becoming a design competition entry and it was a top 10 vote getter in the competition.  The object is to slide the two main pieces off the central holding piece.  However, they seem to get caught at the end.  Although this puzzle is rated by Hanayama as 3 out of 6 stars, it provided a challenge for several people that tried it.

Cover Up by George SichermanCover Up by George Sicherman – Four pentacubes required to completely cover a tetracube.  The version put out to play with was made by myself for others to play with.  I didn’t find out till later that Brian Menold had much nicer versions on hand for sale that we could have put out instead.

Outstandin' by Haym Hirsh – Haym has been putting out a flurry of packing problems for acrylic boxes.  This one is a ball packing puzzle with 3D printed pieces.

Hat Trick by Laszlo MolnarHat Trick by Laszlo Molnar – 6 L’s packed in a constrained opening box.  This puzzle was a top 10 vote getter at IPP39 and Brian had several very nice copies on hand to sell in different types of wood.

Multiball by Eric Fuller – Eric has recently stated that he will be developing many new puzzle boxes for the puzzle community.  Multiball is the most recent of these and someone was kind enough to bring theirs for others to play with.  This also sparked some conversations on the “official solution” vs another solution found by others.

Triagonal Pyramid by Kohno IchiroTriagonal Pyramid by Kohno Ichiro – 4 pieces with 2 half cubes each that make a triagonal pyramid.  Of course, this sparked a debate of what a triagonal pyramid was.  I brought a homemade copy of Triagonal Pyramid for others to play with, but it lacked the magnets that help hold it together.  I justified not adding the magnets since I didn’t know the polarity orientations used for the design.  However, if you acquire a copy of your own, make sure it has magnets.


Petit Ring by Osanori YamamotoPetit Ring by Osanori Yamamoto – Osanori has been making many interesting restricted opening packing puzzles and this was also one of the top 10 vote getters at IPP39.  You only have to pack 3 pieces in a restricted opening box, and has TWO openings!

Standing Egg by Osanori Yamamoto – The goal of this puzzle is to make a cube with one missing corner that can stand upright on the three points that result from the missing corner.   The one at RPP was beautifully made by Tom Lensch.

Rules of Attraction by Laszlo Molnar
Rules of Attraction by Laszlo Molnar – This is a beautifully made puzzle by Brian.  I was amazed at the amount of work that went into making these.  Each one of the cubes that comprise the pieces has an internal rare earth magnet embedded in it and each piece has a different set of orientations.  As painful as it was to make, I did enjoy listening to Brian’s stories of how all the pieces would move around the table and attack each other as he was trying to make them.

Somaa Cube by Hyam HirshSomaa Cube by Haym Hirsh – Haym has been designing a lot of Soma varients and Somaa is one based on using non-cubic rectangular parallelepipeds (or in English – cubes stretched/compressed by different amounts in each direction) to make the Soma-like pieces.  I believe that the X, Y, and Z dimensions of each of the blocks used to make the pieces are 1 of 3 values.  Since 3^3 is 27, I would guess that there is one block for every possible combination of measurements.   The Somaa Cube was made by Brian in a variety of exotic woods resulting in beautiful pieces and an even more beautiful cube once it was all put together.

TD345 by Chico Banan, photo by Nick BaxterTD345 by Chico Banan – This puzzle was described in the prior post, Chico Strikes Again.  Somehow Jeff managed to score one of the 2 copies that were made for the IPP design competition and, as expected, it was highlight of RPP 2019!  Enough said.

Tetra Spinner by Yasuhiro Hashimoto and MINE – This is a clever constrained packing puzzle with 2D tetra pieces sandwiched between 2 plates of plexiglass.  Each piece is a different color to help easily identify the individual pieces as you insert them in and move them around in the frame.

Puzzles in Play

In addition to these puzzle design competition entries, there was a large assortment of other puzzles brought by everyone, strewn upon the horizontal surfaces of Jeff’s living room, to entertain everyone.  Puzzles that I managed to solve that first night include:

Hat Trick – As previously mentioned, this puzzle, designed by Laszlo Molnar, was a top 10 vote getter in the IPP39 design competition.  After the competition entries were released before IPP started, I studied the entry online and worked out in my head how the solve would go.  Presented with the actual puzzle, I was able to verify my approach and quickly determine that I had accurately imagined it.  However, the actual puzzle was much more beautiful than my intangible copy.  Brian did a fantastic job making these and I took one home with me!

Cluster by Andrew Crowell
Cluster - Brian has been making several of Andrew Crowell’s puzzles and this is the first one of Andrew’s designs that I’ve played with in a while.  When I found it, it was disassembled.  The first thing that I noticed was that it didn’t appear to make a cube and it was quickly apparent that it was in the shape of a crystal.  The only reason that this puzzle doesn’t have TIC at the end of the name is that it’s not a cube.  It still has plenty of rotational moves for those that have come to expect that from Andrew’s designs.

Petit Ring – If the IPP wasn’t tired of giving Osanori Yamamoto awards, this one would have probably received one.  Only 3 simple pieces that have to be inserted within the frame such that each opening in the frame was completely filed.  I really enjoyed working on this one.  Not too difficult but a nice challenge.  Tom made this beautiful copy.

Somaa – You used to be able to refer to someone’s Soma variant by saying the designer’s name and Soma Cube.  Haym has ruined that approach by recently releasing several Soma Cube variants plucked from the Somaverse.   I didn’t find this puzzle overly difficult.  I convinced myself that I was following a reasonable procedure for deriving the solution that was a combination of identifying the best size block faces to match along with some backtracking.  Of course, I could have just been lucky.  Brian made the beautiful copy that was at RPP and I’m guessing that they will be available again at Wood Wonders in the near future.

Mushkila by Yavuz DemirhanMushkila – I’ve seen several references to Yavuz Demirhan’s Mushkila puzzle on Facebook and was looking forward to trying this one.  5 elbows and 1 straight piece packed in a constrained opening box.  This one is not that difficult and a good puzzle for new puzzlers.  The version at RPP was beautifully made but I don’t know who made it.

Wavelinks by Rod BogartWavelinks - Rod Bogart entered Wavelinks in last year’s IPP design competition and was a Top 10 vote getter.  When I saw it in the competition room, I thought that the design was brilliant.  I successfully took it apart but the room was closed before I could get it back together.  Now a year later, I had some more time to focus on it.  As with last time, I was able to quickly separate the red and blue rings and marvel at the motion required for separating them.  It was also easy to make separate red and blue rings that weren’t intertwined.  When I thought I had it all figured out and set the assembly into motion, I discovered that I had 2 red and blue intertwined rings.  A little tweaking, and I was back to a red and a blue ring that were intertwined.  The motion is so mesmerizing that I played with it some more and determined that there is more than 1 way to start the assembly process, with some easier than others.  A year later, I still think this is a brilliant puzzle and I hope that Hanayama will carry it sometime in the future.  It would look fantastic in 2 contrasting metal finishes.


Tetra Spinner by Yasuhiro Hashimoto and MINETetra Spinner – After seeing this in the list of IPP39 design competition entries, I was looking forward to playing with it at some point.  It looked like an innovative approach to a restricted 2D packing problem and the IPP39 participants agreed, making it one of the top 10 vote getters in the competition.  I enjoyed working on this one.  It is fairly straight forward and doesn’t really require a lot of convoluted moves.

All In by Hyam Hirsh
All In – Haym brought several restricted opening packing puzzles with acrylic boxes and 3D printed pieces and this was the only one that I had the time to tackle.  Reminiscent of the very popular Casino puzzle by Volker Latussek, which won last year’s puzzle of the year award in the IPP design competition, this puzzle requires you to pack 6 octagons in a box through a small opening.  Since this was a prototype, the pieces were 3D printed.  I enjoyed working on this one and liked it more than I did Casino.  Haym’s only disappointment with this puzzle, named by his son, is that his young son could so quickly throw out poker references.  However, it is an awesome name for the puzzle.

In between all that puzzling and talking, eating was also another popular activity.  Jeff grilled up some vegetarian and chicken shish kebobs that he and Sue skewered up.  It was accompanied by an excellent rice dish.  Jeff is an awesome chef and you could easily go there just for the food.

In addition to all the puzzles, a big thank you goes to Brian for bringing Wood Wonders T-shirts for everyone.

Saturday

Unlock! Exotic Adventures – Scheherazade’s Last Tale

The main day had arrived and we started it with some fresh bagels and cream cheese that Jeff went out and procured.  After caffeinating up, it was on to puzzling and other related activities.

Every year, there are some breakout sessions involving multi-person games.  This year’s game, Unlock! Exotic Adventures – Scheherazade’s Last Tale, involved lots of team puzzle solving.  The game incorporated a cell phone app that contributed a background theme song to accompany the cards being used.  Its always fun listening to banter that accompanies the games progression.

Puzzling Happening HereAnother of the RPP highlights every year is the Peter Wiltshire magic show.  This year’s performance featured a beautiful box with 3 die, made by Peter.  He’d show the 3 die in the box, put the cover on, and shake it so you tell that they were all in there.  Then he could pull one out and then shake the box to verify that one was missing.  Then magically, the dice would appear or disappear from the box as Peter showed it to the spellbound crowd accompanied by gasps of “I can’t believe it”.

The HostFor lunch, Jeff barbecued some hamburgers, sausages, and chicken, Tom made a salad, and I made some guacamole.  That along with some other salads kept us going for the rest of the day.  Of course, most people brought some type of dessert, so there was plenty of that as well.

Another tradition of the RPP is the John Rausch give-away auction, where John brings puzzles that need to move on to someone else that can use them.  The collection of puzzles are displayed on a table and everyone picks a number from the hat.  People then take turns selecting a puzzle from the collection based on the number picked.  Since there were more puzzles than puzzlers this year, there were multiple rounds of selections.  I ended up with some very nice puzzles this year and applaud John for his generosity and the fun that it provides.

The Ladies
While all this puzzle madness was going on, the ladies slipped out to enjoy a peaceful lunch and do some shopping.  They didn’t come back with any puzzles, so I didn’t quite see the purpose in going.  Oh well.

XTic by Andrew CrowellDuring the day, I was able to tackle and solve several puzzles including:

XTic – Andrew Crowell part 2.  This was the second of Andrew’s puzzles, beautifully crafted by Brian, that he brought along.  This one was a lot of fun and I enjoyed the rotations and how the pieces traveled through the cube.  Andrew may be fairly new to the puzzle community but he has quickly dominated the Turning Interlocking Cube category.  I’m always looking forward to new designs that he has coming out.

Cluster Buster by Rex DwyerCluster Buster – Brian brought a prototype of Cluster Buster designed by Rex Dwyer that he made in Catalpa .  This puzzle is a Coffinesque geometric shape consisting of 6 pieces that is so intimidating that Brian brought a solid example of the final shape for reference.  Some of the deep triangular pockets are displayed on the outside while others get filled by points from other pieces.  I managed to solve this one, using experience from solving Coffin puzzles and a bit of luck.  It’s a very nice design and I’m assuming that Brian will be providing these in the near future.


Half Lid Box by Hajime KatsumotoHalf Lid Box – This beautiful puzzle, designed by Hajime Katsumoto, was made by Made by Eric Fuller and sold on Cubicdissection a year ago.  Although, I found this puzzle fairly simple, others had a more difficult time.  Sometimes you just get lucky!

Rectilinear – Tom brought a prototype of Goh Pit Khiam’s Rectalinear puzzle to get some feedback.  He brought a copy of the 4x4 board and a description of the puzzle including what the pieces looked like.  He apologized for not bringing any pieces, but that didn’t stop us from making some from cardboard.  The goal is to make a complete circuit between an identified source and destination using all the pieces with all the lines part of a single circuit.  It reminded me of Tom Cutrofello’s Lab Mice puzzles.  I could easily see this type of puzzle expanded and picked up by a company like Thinkfun.  For so few pieces, I found the challenges more difficult than I expected.  Unfortunately, I cannot provide any photos that would not give away the puzzle design.

Pack 3 by Osanori YamamotoPack 3 – This my favorite of Osanori Yamamoto’s packing puzzles made by Tom that I played with during RPP.  For only 3 pieces, I ended up spending quite a bit of time finding the solution to this.  It required an interested sequence of movements to get those 3 pieces in position and I liked it a lot.  If you could only get one of Osanori’s packing puzzles, I’d recommend this one.

Cribbage Dance by Tyler SomerCribbage Dance – Puzzle gatherings like RPP are a great opportunity to get feedback on new puzzles and Tyler Somer took advantage of this by sending 2 copies of his Cribbage Dance puzzle for people to try.  Tyler also pointed out certain issues that he was not happy with, and was soliciting potential solutions to what he considered a problem.  Needless to say, several puzzlers reviewed the puzzle and provided feedback, not all of it happy/glad/good job tidings.  The puzzle consists of a frame with 3 sliding plates and 2 burr pieces running through the plates.  On first glance, it looks like it would be extremely difficult.  When I see these types of puzzles, I assume that the difficulty goes up exponentially with the number of plates and the number of burr pieces.  3 plates is a warning for me and I usually don’t buy these types of puzzles with more than 2 plates.  However, in this case, all the plates are the same and their orientation is obvious, taking that out of the equation and putting this puzzle in the easy category as opposed to the hard category on my personal scale.  The puzzles were nicely crafted by Greg Davis.

Pack 012 by Osanori Yamamoto
Pack 012 – This was the easiest of Osanori Yamamoto’s packing puzzles that Tom brought.  Of course it was the last of the 3 that I worked on and maybe the mind was lubed to process these types of puzzles.  This was a top 10 vote getter in last years IPP design competition.  However, someone had to explain to me how it got its name - Duh!

Die Welle Jean Claude ConstantinDie Welle – Rich scored this Jean Claude Constantin N-ary puzzle from John’s auction.  I decided to go through the motions of moving the balls from the starting point to the ending point.  Not difficult, but a nice fidget type puzzle.  I though the best part of the puzzle was the design of the holes at the beginning.  The plexiglass is cut so that there is a springing movement to it, allowing you to push the balls in, but keeping them from popping back out.  Very clever!


Kawashima W Box
Kawashima W Box – You would think that from the puzzle descriptions, that RPP is a burr/packing puzzle party.  Au contraire, there are serious puzzle box aficionados in attendance at RPP including the host himself.  The only box that I tackled was the W box by Kawashima.  Not very difficult, but the craftsmanship was very good.

I wound up Saturday night by trying to solve the Harun Packing Puzzle by Dr. Volker Latussek.  This puzzle was made with Black Limba and Zebrano by Eric Fuller at Cubicdissection.  It consists of 6 identical 2x2x4 notched pieces and 6 identical 1x2x4 boards.  The object is to pack a 5x5x5 box with no internal obstructions and I was told that it has not 1 but 2 solutions, one supposedly hard and the other easier.  It looks quite simple but I was unable to obtain either of the solutions, unless one of the solutions is to leave a piece out.  I packed it in, myself not the puzzle, at 1am to get a few hours of sleep before attacking it again.

Haym's Table

Sunday

Mortising MachineSunday morning, the topic of drilling square holes came up and Jeff took us out to his workshop to give an impromptu mortising demonstration.  I always like to go out and spend time in the shop even if it is only to look since Jeff has a very nice setup.  While walking around the shop, Jeff ran across some rejects of his Reversal of Fortune Box for the Apothecary Chest.  Of course, the term reject is relative and what Jeff considers a reject is leagues beyond what I can make on an exceptionally good day.

After some collaborative brainstorming, Jeff gave some of these non-operational copies a quick pass on the table saw to transform them into functional puzzle boxes at the cost of a slightly shortened top.  A few people were more than happy to take home a slightly modified and unfinished version to enjoy the wonderful mechanism of this unique and extremely limited puzzle box.

While sitting around chatting with the other puzzlers, I started to play with a copy of Bouquet by Christoph Lohe and made by Brian.  I didn’t have enough time to get too far into this one, but at 23 moves to remove the first piece, I’d have to dedicate some time to focus on this one.

I also spent quite a bit more time trying to find the solution to Harun without success.  After returning home, I had an epiphany and think that I know what is required to solve it.  Of course, epiphanies are cheap and I’ll have to wait for another opportunity to test my theory.

I brought a new puzzle that I designed after IPP called Broken Soma.  Several people tried it and 1 person was able to solve it.  Brian will be offering copies on Wood Wonders in the near future.

You may be thinking that this gathering is all about puzzles, but in reality, it’s all about the people.  That’s what makes it all worthwhile.  So find some people near you and have your own puzzle party!

Lots of Puzzling