Pentomino Odd Pairs
Livio Zucca

Pentominoes

We are searching for the shapes with minimal area that can be covered by two different pentominoes, using an odd number of pentominoes. We'll accept solutions on the plane only. If you have better solutions, please send them to George Sicherman HERE.

Historical note: The first known appearance of this problem was in Issue 11 of Rodolfo Kurchan's Puzzle Fun in 1996. It presents solutions for 11 pairs of pentominoes, found by Rodolfo Kurchan, Gustavo Piñeiro, Pablo Coll, and Hector San Segundo.

Issue 13 presented new and improved solutions from Mike Reid and Pieter Torbijn. —George Sicherman

Pentominoes

F5I5oddF5L5oddF5P5oddF5N5oddF5T5oddF5U5odd
F5V5oddF5W5oddF5X5oddF5Y5oddF5Z5oddI5L5odd
I5P5oddI5N5oddI5T5oddI5U5oddI5V5oddI5W5odd
I5X5oddI5Y5oddI5Z5oddL5P5oddL5N5oddL5T5odd
L5U5oddL5V5oddL5W5oddL5X5oddL5Y5oddL5Z5odd
P5N5oddP5T5oddP5U5oddP5V5oddP5W5oddP5X5odd
P5Y5oddP5Z5oddN5T5oddN5U5oddN5V5oddN5W5odd
N5X5oddN5Y5oddN5Z5oddT5U5oddT5V5oddT5W5odd
T5X5oddT5Y5oddT5Z5oddU5V5oddU5W5oddU5X5odd
U5Y5oddU5Z5oddV5W5oddV5X5oddV5Y5oddV5Z5odd
W5X5oddW5Y5oddW5Z5oddX5Y5oddX5Z5oddY5Z5odd






See also:
Pento-tro-dominoes
Pento-tetro-trominoes
Tetrominoes Challenge
Triple Pentominoes

LINKS:
Holeless Pentomino Odd Pairs
Pentabolo Odd Pairs
Pentahex Odd Pairs
Pentacube Odd Pairs
Visit the wonderful site of Jorge Luis Mireles (archived).
The new pages of Giovanni Resta.
The T.I.D. RONSE BELGIUM site (now K.S.O. Glorieux Ronse).


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It isn't trivial!

First edition: Jan. 11, 2004 — Last revision: Apr. 7, 2022

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