Colour Zone Maze was Greg Dye's exchange puzzle at IPP25 in Finland, 2005.This sequential movement puzzle provides many challenges.Prepare the puzzle by arranging the colored pieces in the tray as one of the 10 challenge boards. Challlenge board 1 is shown in the picture (imagine the 3 separate voxels are in the tray)Start by placing the extra 1x2 black piece in an upright position on one of the corners.Move the black piece to any other corner by rolling it up, down, left or right, but always...

Award winning 4L Basket by Koichi Miura. One of my favorite packing puzzlesFrom the PuzzleMad blog (https://www.puzzlemad.co.uk):"I knew that 4L Basket was going to be fun - it had won the Puzzler's award as well as the Jury 1st prize at the Design competition in 2019 and I had a brief play with Allard's copy at the last MPP and failed to solve it after a ½ hour helping me decide that I definitely needed my own copy. I tried a few of the tricks from the 4L packing puzzle but that didn't help ...

Diskos was Jeremiah Farrell's exchange puzzle at IPP25 in Finland, 2005.The goal of this 2D put-together puzzle is to arrange the 12 DISKOS pieces on the 6x6 grid so that the four occurrences of each number (1-6) mark the four comers of a square. The six squares may be of size 4x4, 3x3 or 2x2.An example is shown in the 6th picture.The exchange puzzle includes a wooden 6x6 grid version with numbers on the pieces, and a pressboard 4x4 grid version with letters on the pieces.Also an additional 'd...

Solved once, very well made and great fun!On the theme of Jules Verne and his trilogy, a new puzzle NEMO was created in the production of original Czech puzzles RADEMIC. The multi-task puzzle has two stainless steel - brass balls inside, which you have to remove with the help of a movable periscope and look for other encrypted secrets. The round cage is made of turquoise anodized duralumin and the interior of the submarine with windows is made of brushed stainless steel. Part of the puzzle is a ...

Black Magic was the exchange puzzle of Roman Götter at IPP25 in Finland, 2005.This 25 piece jigsaw puzzle has 2 very different solutions.Some of the double-sided pieces have parts of images of dice engraven on them.(Ignore the reflections in the pictures, the top right piece in picture 2 clearly shows the dice engraving)Solution B shows a dieSolution A shows the faces 1-4This puzzle is packed in a CD jewel case, which can also be used to store one of the solved states.= = = = = over 70 IPP25 ex...

Six Easy Pieces was the exchange puzzle of Rosemary Howbrigg at IPP25 in Finland, 2005.The goal of this puzzle is to arrange the six wooden pieces to form a solid, regular polygon.It is up to the solver to find out how many sides the regular polygon has, although a hint is provided on the instruction sheet.This puzzle is packed in a red fabric bag.= = = = = over 70 IPP25 exchange puzzles available, see my other listings = = = = =

Valise Squeeze was the exchange puzzle of Stan Isaacs at IPP25 in Finland, 2005.The goal of this puzzle is to pack the pieces into the valise.Then repack the pieces, to squeeze in an extra yellow square.Then repack again, to squeeze in a second square,and a final time to squeeze in all three squares.Once you have solved the puzzle, try to figure out where all the extra area is coming from.The answer is shown and explained on an additional paper sheet.This puzzle is packed in a custom-made plasti...

The Danish Squares was the exchange puzzle of Frank Karrenbeld at IPP25 in Finland, 2005.The goal of this puzzle is to use all 20 pieces to make either 1, 2, 3, 4, 5, or 6 squares.See detailed instruction in the 2nd picture.The puzzle comes in original custom made paper sleeve, with instructions and solutions inside.The outer paper sleeve is torn and wrinkled in some places, this does not affect the puzzle at all.= = = = = over 70 IPP25 exchange puzzles available, see my other listings = = = = =

The sliding LB (make a big pound)  was the exchange puzzle of Junk Kato at IPP25 in Finland, 2005.The goal of this puzzle is to slide the tiles to reach the solutin shape with a continuous blue line.From the "basic" start position, it requires 51 moves.From the "EH-level" start position, even more...The puzzle comes in original zip lock bag with instruction sheet. No solution is included.= = = = = over 70 IPP25 exchange puzzles available, see my other listings = = = = =

Change of Heart was the exchange puzzle of Hans van der Zon at IPP25 in Finland, 2005.Change of Heart is a sliding-piece puzzle with 8 pieces.The plain heart can be changed into the patterned heart and back again.When the middle piece of the puzzle is removed, the other 7 pieces can slide. They can be rotated in one corner of the puzzle.The puzzle comes in its original paper sleeve with instructions printed on the outside (see picture 4).= = = = = over 70 IPP25 exchange puzzles available, see m...

This nicely crafted turtle burr consists of 6 pieces, and requires no less that 8 steps to remove the first piece!I have no background information about this puzzle.It has intricate notches and sliding parts inside, see picture 4 (no spoiler, this picture is staged).If you like animal puzzles then you need this one (too bad it is not a hippo!-)

Triamant is a set of 16 equal 4-sided pieces in 8 different colors, which are hinged together to form a loop.It can be rearranged to more than 250 different shapes, which are stable on a flat surface.It is a lot of fun to play with, and the construction is sturdy (see 5th picture).Even the one-piece outer packaging is an interesting 3D folding puzzle! See pictures 2/3.See this  youtube demo video for a commercial presentation(the website mentioned in the video is not useful, it seems to be tak...

Towers of Riga was Andrejs Cibulis' exchange puzzle at IPP25 in Finland, 2005.The goal of this 3D packing puzzle is to  pack the 13 pieces in the hexagonal box.See 3rd picture for the original detailed description.= = = = = over 70 IPP25 exchange puzzles available, see my other listings = = = = =

Complete Insanity was the exchange puzzle of Rik van Grol at IPP25 in Finland, 2005.The goal of this puzzle is to place the 5 cubes in the base in such a way that from all (six) directions you see 5 different symbols.The base (tray) has 2 layers, a top layer with holes that fit the cubes, and a bottom layer with smaller holes to make the symbols on the bottom of the cubes easily visible.The symbols are laser-engraved on the cubes, the instructions are laser-engraved on the base.This puzzle com...

Karin's Cubes & Ladders was the exchange puzzle of Jürg von Känel at IPP25 in Finland, 2005.The goal of this puzzle is to select 16 of the 30 pieces and arrange them so that there is a continuous path from the lower left to the top right. See also the laser engraved instruction on the back of the puzzle (picture 2)The puzzle comes with a 54 page booklet describinig the puzzle history, analysis, and 24 challenges and solutionsThis puzzle is packed in a zip lock bag together with the booklet.= =...

Stuff the Turkey was the exchange puzzle of Harry Nelson at IPP25 in Finland, 2005.The goal of this puzzle is to re-assemble the 8 tetromino pieces in the frame, after "shaking them out of the box".The pieces are a bit loose on purpose, to make sure they drop out of the frame when the box is turned over.This ensures that the solver does not see the solution before attempting the solve.A second challenge is to put the empty frame in the box, and then re-assemble the pieces in the frame.This compl...

Alcatras was the exchange puzzle of Vaclav Obsivac at IPP25 in Finland, 2005.The goal of this puzzle is to take it apart and put it back together again.This is a four-piece coordinated motion puzzle.The wood is unfinished, this causes friction between the pieces.Therefore the coordinated motion solution requires accurate alignment.Three different wood types are used, the wood types are not specified.The puzzle comes in its original cardboard box, with with instruction sheet.= = = = = over 70 IPP...

Dissection 634 was Koshi Arai's  exchange puzzle at IPP25 in FInland, 2005.This 2D packing puzzle has 3 goals: pack all pieces in either the hexagon, the triangle, or the square area in the frame. A very nice geometrical dissection puzzle, lasercut from wood.The tray is rather large at 12 x 30 cm.= = = = = over 70 IPP25 exchange puzzles available, see my other listings = = = = =

 Double Take Checkerboard was Les Barton's  exchange puzzle at IPP25 in Finland, 2005.This 2D packing puzzle is two puzzles in one, see the 2nd picture for the full description.This puzzle comes in its original box.= = = = = over 70 IPP25 exchange puzzles available, see my other listings = = = = =

Four Pentomino Problems was Allan Boardmans exchange puzzle at IPP25 in Finland, 2005.One of Allans famous miniature puzzles: an 8x8 2D packing puzzle in a tray of no more than 5x5 cm! Very small (5,5 mm pixel size), very accurately made, very good looking, and very collectible.This puzzle has 4 goals, each indicated with 4 colored squares that are to be left open.See 3rd picture (partially blocked to avoid spoiling it for puzzlers with a phographic memory).This puzzle comes in its original stu...