New posts in Puzzle

Any package for typesetting polyominos/tetris-like shapes?

Riddle regarding mean value theorem

Infection spread on a torus chessboard

Cat and Mice puzzle!

How few $(42^\circ,60^\circ,78^\circ)$ triangles can an equilateral triangle be divided into?

A $2021$ problem: $20\sim 21$ and $43\times 47$

Solving Dudeney's "A Question of Cubes": sum of consecutive cubes is a square

Is there (or can there be) a general algorithm to solve Rubik's cubes of any dimension?

A puzzle involving $10$-adic numbers

Math/Logic Puzzle