Journal of Combinatorial Theory, Series A
(1998), no. 1, p. 158.

Tiling a Square with Eight Congruent Polyominoes,
by Michael Reid

Journal of Combinatorial Theory, Series A
(1998), no. 1, p. 158.

Abstract

Marshall [1, Figure 9] gave an example of a polyomino, 8 copies of which
tile a square.
He asked if this was a sporadic example of a rectifiable
polyomino, or if it could be generalized to give an infinite family.
We give one way to generalize his tiling to give an infinite family of
rectifiable polyominoes; we do not claim that it is the only way to
generalize it.

Marshall's tiling - do you see how to generalize it?

Reference

[1]
William Rex Marshall,
Packing Rectangles with Congruent Polyominoes,
Journal of Combinatorial Theory, Series A
(1997), no. 2, pp. 181-192.
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Updated January 8, 2008.