# The Lobster and the Snake: Solutions

## Growing Up Alike

This hexiamond is the smallest polyiamond that can be attached
to the Lobster and the Snake
so that the resulting shapes are identical:

Polyform addity problems were introduced by Erich Friedman
in the November
2006 issue of Math
Magic.
This addity problem was featured in an entry of November 13, 2006
at Ed Pegg Jr.'s site Mathpuzzle.com.

## Filling Out

Here is the smallest convex polyiamond
that can be made from Lobsters and Snakes, using at least one of each:

It has 24 Lobsters and 6 Snakes, which must be arranged as shown.

## Sister Act

Here is the smallest polyiamond that can be tiled by
the Lobster and by the Snake:
It has 18 tiles.
For a harder challenge, find a solution with an odd number of tiles!

## Odd Couple

This is the smallest polyiamond with full symmetry
that can be formed by an odd number of Lobsters and Snakes:

For a harder challenge, find a solution without a hole!

Last revised 2020-07-31.

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Col. George Sicherman
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