Pentominoes
There are 12 pentominoes. Each is formed from 5 squares. They are named
by using letters that approximate their shape.
The pentomino colors used here match those used by
Bette Bultena
and
James C. Pang
in their
Pentomino Puzzle Solver.
See also
Pentomino Puzzles,
Triplicate Pentominoes,
The Centroid of a Pentomino