New posts in polyomino

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?

geometry logic tiling polyomino

How to classify polyominoes by shape

combinatorics geometry symmetric-groups hash-function polyomino

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

tiling polyomino

Is every "even" polyomino with one hole tileable by dominoes?

tiling polyomino

How densely can the :...: polyomino fill the plane?

geometry tiling packing-problem polyomino

What is the smallest polyomino that can't surround a $1\times 1$ hole?

recreational-mathematics polyomino

Determine whether a polyomino has a hole

Can any number of squares sum to a square?

elementary-number-theory square-numbers tiling polyomino