Colorful illustrations demonstrate how closed surfaces could be covered by polyominoes.

Erich Friedman's problem of the month asks how to partition the unit cubes of an a*b*c-unit rectangular box into as many connected polycubes as possible with a shared face between every pair of polycubes. Answers provided.

Don Hatch's page on hyperbolic tesselations with numerous illustrations.

Pentomino solver with download. Windows 95 and later required. [German/English]

Jankok presents information about filling rectangles, other polygons, boxes, etc., with dominoes, trominoes, tetrominoes, pentominoes, solid pentominoes, hexiamonds, and whatever else people have invented as variations of a theme. References included.

Jorge Luis Mireles Jasso presents connected sets of squares in a 3d cubical lattice. Includes a Java applet as well as non-animated description.

Robert Hochberg and Michael Reid exhibit an unboxable reptile: a polycube that can tile a larger copy of itself, but can't tile any rectangular block. Abstract of article to "Discrete Mathematics".

Mr. Confetti presents a Windows and Java game for tangrams, polyominoes, and polyhexes.

Michael Reid's abstract of a paper in the "Journal of Combinatorial Theory, Series A".

Michael Reid's abstract of paper in the "Journal of Combinatorial Theory, Series A".