Rubik’s Cube https://www.mathematische-basteleien.de/rubikscube.htm
Rubik’s Cube in my view
Probably you will have to repeat this sequence.
Dein Suchergebnis zum Thema: have
Polyiamonds https://www.mathematische-basteleien.de/iamonds.htm
About figures formed of equilateral triangles
equilateral triangles together in such way they must have
Pentominos https://www.mathematische-basteleien.de/pentominos.htm
Playings with Pentominos
You must arrange the squares, so that they must have
Hypertetrahedron https://www.mathematische-basteleien.de/hypertetrahedron.htm
About the hypertetrahedron
All points must have the same distances from each other
Flexagons https://www.mathematische-basteleien.de/flexagons.htm
How to make flexagons
It must have a cross on the reverse side.
Magic Square https://www.mathematische-basteleien.de/magsquare.htm
My view on Magic Squares
If you take the numbers 1 to 9, you have the standard
Kolams and Sona https://www.mathematische-basteleien.de/kolams.htm
Kolams and Sona
The only thing they have in common is that dot patterns
Numeric Palindromes https://www.mathematische-basteleien.de/palindromes.html
My view on Numeric Palindromes
You have 9+9+90+90+900+900 = 1998 palindromes up to
Burr Puzzle https://www.mathematische-basteleien.de/devilsknot.htm
How to solve several Burr puzzles
You have to fit them together, so that you have a „
15puzzle https://www.mathematische-basteleien.de/15puzzle.htm
How to solve the 15puzzle
Sometimes you don’t have a 2×2 square for moving a