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Puzzle description: The 4Z Puzzle is a classic one: Four copies of the Z pentomino should be placed into the tray. Puzzle difficulty: This is an easy puzzle, nice for beginners. Nevertheless the solution provides an Eureka moment. If you…
Puzzle description: The problem is to place 10 Euro Cent coins into the big square. This is a variant of the "10 Penny Puzzle" which is rescaled for Euro Cents instead of US Dollar Cents. The original…
Puzzle description: The Paradoxopiped Puzzle is a melting block puzzle designed by Gianni A. Sarcone, see https://www.archimedes-lab.org/workshopparadoxopiped.html . It is presented here with kind permission of the designer. The box is…
Puzzle description: This is a simple but mysterious puzzle with triangles: Five yellow pieces fill a square frame loosely. The task is to pack the additional red triangle into the frame. If you can read German: Mehr Informationen gibt es…
Puzzle description: Parallel polarized pentominoes consist of five unit rectangles instead of squares each. Hence, they allow only 180 degree rorations and flips, no 90 degree rotations. This increases the number of pieces. There are 21…
Puzzle description: There are 60 one-sided hexominoes because 25 of the 35 usual two-sided hexominoes change their shape when flipped over. There are many challenges for the one-sided hexominoes:…
Puzzle description: Jags and Hooks is probably the oldest polyomino packing puzzle in the world, found in a catalog of P. F. Catel from 1785. The task is to place the four L-tetrominoes and the four Z-pentominoes in the 6x6 tray. If you…
Puzzle description: This Melting Block Puzzle is a well known puzzle by Thomas O'Beirne. There are eight cuboids in the seemingly filled box. The additional cuboid should be packed into the box, too. There are many variants for this…
Puzzle description: Wonder Puzzle 16 looks like an easy pentomino puzzle, but it has an additional magic twist: Here, the pentominoes consist of rectangles instead of squares. First problem: Put the three pentominoes into the tray so that…
Puzzle description: There are much more Sliding Block Puzzles around than you can find in your favorite toy store. From this construction kit you can choose the right size of the tray and the blocks you need. Everything can be used for…
Puzzle description: The puzzle consists of 15 L-pentominoes (one in a different color, here in orange) together with a tray. But the main tasks takes place outside the tray: Take the orange piece and n of the blue pieces (n=4, 5, 6, ...,…
Puzzle description: Wonder Puzzle 25 looks like an easy polyomino puzzle, but it has an additional magic twist: Here, the polyominoes consist of rectangles instead of squares. First problem: Put the four polyominoes into the tray so that…
Puzzle description: For this puzzle, the Cairo pentagonal tiling is used, see https://en.wikipedia.org/wiki/Cairo_pentagonal_tiling . Polycairos consist of a number of cairos. For this puzzle we use the full set of all polycairos…
Puzzle description: This is a simple but mysterious puzzle: Four similar pieces fill a rectangular frame. The task is to pack the additional small rectangle into the frame. If you can read German: Mehr Informationen gibt es in…
A rectangle is called simple perfect if it can be filled completely with squares of different integer side length. This nice mathematical feature can obviously be turned into a puzzle. The smallest simple perfect rectangles consist of…
Puzzle description: This is a very simple packing puzzle, solvable for children from 3 years old. And also funny for parents. It was designed by Ichino Keiichiro (https://puzzlewillbeplayed.com/333/Most55443321.html) in 2003 as the the…
The SuperEgg was designed by Piet Hein as a piece of art and as a puzzling object, but the underlying mathematical shape has been known much longer. It can stand upright on a flat surface. This feature makes is an interesting puzzling…
Puzzle description: The problem of polyomino rectification is to fill a rectangle with copies of a single polyomino. For some of the polyominoes the solution with the mininmal number of pieces needs a quite large rectangle and is…
Puzzle description: To open a standard 6 piece burr you perform only moves of a singele piece (or a group of pieces) which must be parallel to one of the three axis of the burr. Here you have one rotating stick which behaves differently:…
Puzzle description: This is a small version of a sliding structure consisting of six identical pieces. It was designed by Rinus Roelofs ( http://www.rinusroelofs.nl/ ) and is presented here with his kind permission. With the six pieces…
Puzzle description: Parcel post is an old puzzle by an unknown designer. 18 cuboids are to be packed into a cuboid box. The size of the box is 6x18x28, the pieces are 2x4x9, 2x5x18, 2x5x21, 2x6x7, 2x6x10, 2x6x13, 2x7x18, 2x8x18, 2x9x11,…
Puzzle description: The so-called cube equation is 3^3+4^3+5^3=6^3. The puzzle pieces consist of nine cuboids with a volume of 216 cubies. There are two tasks: Use all pieces to built three cubes: 3x3x3, 4x4x4, and 5x5x5. Use all pieces…
A square is called perfect squared square if it can be filled completely with squares of different integer side length. This nice mathematical feature can obviously be turned into a puzzle. The smallest perfect squared square has side…
Puzzle description: There are 10 different one-sided checkered terominoes which should be packed into a square or a rectangle with the correct checkerboard pattern. The first goal of the puzzle is to select nine of the ten tetrominoes and…
Puzzle description: The problem of polyomino rectification is to fill a rectangle with copies of a single polyomino. For some of the polyominoes the solution with the mininmal number of pieces needs a quite large rectangle and is…
Puzzle description: Singmaster Packing is a box packing puzzle where 25 identical bricks of the size 1x3x4 should be packed into a 5x5x12 box. The puzzle was designed by David Singmaster as the simplest non-trivial example for brick…
Puzzle description: This is another generalization of the 10 Cent Puzzle ( https://www.thingiverse.com/thing:5141748 ) with even more options: For the given tray there are five problems with three different sets of coins which will fit in…
Puzzle description: This is one of the oldest checkerboard dissection puzzles, it appeared around 1880. Put the 15 pieces together to form a 8x8 checkerboard with correct pattern. The pieces are one-sided. For more historic information…
Another checkerboard dissection puzzle: Put the 12 pieces together to form a 8x8 checkerboard with correct pattern. The pieces are one-sided. The puzzle is called "Checkerboard Puzzle - Only 12 pieces" and was mass produces around the…
Puzzle description: There are 36 different hexominoes (consisting of six squares each) and 12 pentominoes (five squares each). They consist of 270 small squares which can be packed into many frames, see…
Puzzle description: There are 18 one-sided pentominoes because six of the usual two-sided pentominoes change their shape when flipped over. There are many challenges for the one-sided pentominoes:…
A rectangle is called simple perfect if it can be filled completely with squares of different integer side lengths. This nice mathematical feature can obviously be turned into a puzzle. The smallest simple perfect rectangles consist of…
Puzzle description: Tetrominoes with gaps consist of four elementary squares, but these no longer have to be immediately adjacent. Of course, these tetrominoes are now falling apart and we have to add bridges to prevent this. The task is…
Puzzle description: This is a generalization of the 10 Cent Puzzle ( https://www.thingiverse.com/thing:5141748 ): For the given tray there are three problems with three different sets of coins which will fit in the tray 7 x 2 Euro, 13 x…
Puzzle description: This checkerboard dissection puzzle was published in the Compendium of Checkerboard Puzzles by Jerry Slocum in 1983. The pieces are also given at https://puzzlewillbeplayed.com/Checkerboard/UnnamedCheckerboard/2/ . Put…
Puzzle description: This checkerboard dissection puzzle was published in Sam Loyd's Cyclopedia of 5000 Puzzles, Tricks, and Conundrums With Answers in 1914. Put the 8 pieces together to form a 8x8 square with correct checkerboard pattern.…
Puzzle description: This checkerboard dissection puzzle was first published 1946 by E.M. Wyatt in his book Wonders in Wood. Put the 14 one-sided pieces together to form a 8x8 square with correct checkerboard pattern. If you can read…
Puzzle description: The Parallel Polarized Soma Cube is a traditional Soma cube, but stretched with different factors for the different dimensions. Here, the side length ratio for the resulting cuboid is 3:4:5. The aim of the puzzle is to…
Puzzle description: This puzzle was created by Sam Loyd around 1902. The broken checkerbord consists of eight parts (one L and seven different T's) that are to be assembled into a correctly colored 8x8 checkerboard. You can assemble the…
A checkerboard dissection puzzle: Put the 13 pieces together to form a 8x8 checkerboard with correct pattern. The pieces are one-sided. The puzzle is called XceL Checkerboard Puzzle No. 2 and was mass produces by Doyle Puzzle Co.,…
Puzzle description: There are 108 different heptominoes, consisting of seven squares each. This is a generalisation of the classic pentominoes with much more and difficult problems. The heptominoes can be divided in twelve subsets of nine…
Puzzle description: Kites&Bricks is a tesselation puzzle. A brick is 2x1 rectangle, a kite is built by two half bricks if a brick is split along a diagonal and the two parts are glued together with one half turned over. If you have many…
Puzzle description: Here you find the monomio, the domino, the two trominoes and the five tetrominoes. This set is for completion of the following sets of lagrer polyominoes: Pentominoes and hexominoes: Heptominos: All polyominoes are…
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