Tetrominoes Challenge Update
Livio Zucca's Tetrominoes
Challenge
studies the problem of finding a minimal figure that can be tiled with any of
a given
set of tetrominoes and no others.
Many of the solutions are complex.
Where no planar solution
is known, a reëntrant solution is given.
Solutions were contributed by Odette De Meulemeester,
Paolo Licheri,
Mauro Casini,
Mike Reid,
Erich Friedman,
Remmert Borst, Bas den Hartog,
Helmut Postl,
and Zucca.
In March 2005
I found solutions for two cases
with figures smaller than those found previously.
First, here are the tetrominoes, in Zucca's notation:
Here is my solution for I+L+N with 6 tiles instead of 8:
And here is my solution for Q+T with 12 tiles instead of 18:
Back to Polyform Curiosities.
Col. G. L. Sicherman
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