New posts in Polyomino

Impress Donald Knuth by counting polyominoes on the hyperbolic plane

Number of distinct tilings of an n X n square with free n-polyominoes

Counting generalized polyominoes

Drawing convex polyiamonds

Smallest region of the plane that contains all free n-ominoes

Any package for typesetting polyominos/tetris-like shapes?

If a subset of the square grid can be tiled by $1\times n$ rectangles for every $n$, can it be tiled by infinite rays?

Minimal covering of a $5 \times 5$ square with $T$ shaped tetrominoes.

Are there polyominoes that can't tile the plane, but scaled copies can?

Can any number of squares sum to a square?