A Drive Down Lombard Street, 2009 Exchange puzzle at IPP29. A very well-made puzzle from Brian Young of Mr. Puzzle, the object is to guide a marble through a maze that has sliding pieces moved by gravity (tilting the box) which make up the marble's path. Not only do you have to pay attention to the ball falling down into the lower level (thus making you start over), but you have to slide the bits around to give the ball an erratic path toward the goal. Fun, but one more puzzle that I have to giv...

from cubicdissection.com:This is a fantastic puzzle design. I wish I had made more copies of it! With a staggering 10,800 solutions and only 4 constructable, it is decievingly difficult to solve...it's easy to get all but one piece together, but that last piece is the trick! It is a very fun puzzle to solve and displays very nicely because of the interesting joinery on the edges. Crafting this puzzle was a challenge, which is why the price is a bit higher then I would like. However, I thi...

pieces make either 3x3x3 cube + 4x4x4 cube + 5x5x5 cube, or they all assemble to make a 6x6x6 cubecomes with plastic box which has tears in in.buyer is responsible for all shipping expenses and money transfer fees (including paypal) if applicable

this very easy puzzle is more a work of art. cut from a single piece of wood (at least the ball was), it disassembles into 8 pieces plus the cup. very nicely madebuyer is responsible for all shipping expenses and money transfer fees (including paypal) if applicable

Beautifully made of Walnut and Zebrawood, this puzzle isn't very difficult but sure looks stunning. Made by Interlocking Puzzles. Thanks to Derek for the correct information! Shipping cost will be calculated after the end of the auction. Winning bidder will pay the actual postage amount plus $3 for the first item and $1 for each additional item to pay for packaging costs. Please add 3.5% for paypal payment.

This is one of William Waite's puzzles, out of production, called Puzzling Zoo. As you can see, it's a nicely done laser-cut version of a nine-tile edge-matching puzzle with little wooden animals to hold together each edge. Defect; there's a very tiny dimple (size of a pen tip) on one side of one of the tiles. The puzzle measures 6" on a side, 3/16" thick stock.

Dreiecksbeziehungen tray puzzle - triangle packing. This gives you 9 little triangles, which you can pack into a 3-triangle square hole, 4 triangle hole, and so on up to 9 triangles in a larger square hole. Interesting puzzle.

The Flower; edge matching, make-a-continuous-chain-loop of sum-7's. Nice wooden pieces in a bag, designed by Jeremiah Farrell, laser cut by Walter Hoppe. An exchange puzzle from IPP 29.

Pack In 2 has a set of 7 oddly cut pieces that can pack into two different plastic containers. It's an IPP29 exchange puzzle designed by Mr. Fu-Kuo Ju.

Packuliar has 4 pieces which pack into the box. It's fairly difficult; a rotation is available, but without it, it's a level 7 puzzle (if I remember right). Even with the rotation, it's not easy to figure out, but it isn't insurmountable and is fun to play with. Eric made 26 copies of this out of maple, bocote, wenge, purpleheart and paduak.

Trickerboard - arrange all the pieces so that edges do NOT match. Designed by Rob Hegge. I'm guessing it was cut by Walter Hoppe, but it doesn't say on the puzzle.

DiskFits asks you to arrange the pieces in the tray so that they create 1 or more symmetrical configurations. This was an exchange puzzle produced for the 2009 IPP.

Self-Referential Panels by Harshbarger and Huang. "Arrange the 9 tiles in a 3x3 layout such that each tile describes the 9 colors in its position on the other tiles." The instructions are a bit more involved, with examples, but that's the basic idea; each tile has color-information that relates to its position relative to the other 9 tiles in the grid. This is one of the stranger puzzles I ran into at IPP. Nicely made from solid plastics, with a plastic layout sheet.

Try Again - designed and made by Greg Dye for the IPP29 Exchange. This involves taking a tray of pieces, each made from two triangles glued together and died with different colors, and making a number of patterns (8 puzzles) with the pieces. Not easy, and an interesting exercise in logic.

This is a very nice little "fit the pieces in the tray" puzzle, called "Puzzle for Daughter" designed by MINE for the IPP29 puzzle exchange. There are 3 challenges; fit all 5 pieces in the tray (includes the two circles), or fit the three characters in the tray so there is only space for one disk, or fit the characters in the oval tray so there is no room for any disks.

Shaka-shaka is almost a cross between the Minefield game and a geometric-shape making puzzle. The numbers on the board indicate how many pieces are next to that space, and in the process of putting the pieces down, the resulting light-yellow areas are supposed to make squares or rectangles. The set has 8 different puzzles in it, and it says the pieces are from Mosaica by Orb Factory. They're somewhat like foam board, but much denser and sturdy.

This interesting puzzle features 9 tiles of "grass" and 9 snake segments which are to be arranged in a continuous snake-like line without actually touching any of the blades of grass on the nine tiles. This, of course, means finding the right configuration of the snake so that it will fit neatly on the 9 tiles, and arranging the 9 tiles so the blades of grass do not interfere with the snake's body. It's not easy.

This set of animal pentominoes came from the Belgium school-group at KSO Glorieux Ronse that does the contests all the time. It's cut by a jigsaw, but not a jigsaw-cut puzzle! It's rather large; 10x16 and about 3/4" thick, and nearly 2 lbs, so very expensive to ship overseas! The wood is 5-ply.

TriGears. Three gears that can be snapped out of their frames, so that the teeth can be interfaced in different arrangements. This is required because the teeth are of varying thicknesses. The goal is to "engage the three gears so that they spin freely without jamming". It's quite difficult, since all three gears interact simultaneously; you can't just try to solve 2 of them then add the third. Designed by Bram Cohen and Oskar van Deventer.

Black or White, designed by Vesa Timonen and Tomas Linden. This took me an amazingly long time to solve, considering that it's relatively simple (but non-intuitive). The instructions, though simple, can be a little confusing; I think the distinction between "square" and "rectangle" and "square with internal voids" is very ambiguous. One of the included puzzles is to "make a 8/9 sized square on the table", so does this mean an 8x9 rectangle with or without voids, or a square that's a fractional 8...