# The Lobster and the Snake: Solutions to Harder Challenges

## Growing Up Alike

Here is how to attach the pink hexiamond to two Lobsters
and to two Snakes to form identical shapes:

This is my Earth and Sky Puzzle.
It was my entry in the
2022
Nob Yoshigahara Puzzle Design Competition.

## Filling Out

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

It has 38 Lobsters and 3 Snakes, which must be arranged as shown.

## Sister Act

Here is the smallest known polyiamond that can be tiled by
an odd number of Lobsters and by an odd number of Snakes:

It has 33 tiles.

## Odd Couple

This is the smallest polyiamond with full symmetry and no holes
that can be formed by an odd number of Lobsters and Snakes:

It has 3 Lobsters and 52 Snakes.

Last revised 2023-03-02.

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Col. George Sicherman
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