pentominoes - circuit training
(Published on 12. February 2017, 10:42 by Voyager)
the first picture shows a circuit training of all five tetrominoes, for which only horizontal/vertical reflections and only along by the edges of the tetrominoes are allowed, and exactly 25 cells are used. after each reflection one cell of the tetromino is exchanged with a grey marked cell, to form another tetromino. one cell for tetromino i is marked.
the second picture needs a similiar training with only horizontal/vertikal reflections and only along by the edges of the pentominoes for all twelve pentominoes, in which exactly 72 cells are used. after each reflection one cell of the pentomino has to be exchanged with a grey marked cell, to form another pentomino. one cell for pentomino i is marked.
Solution code: from the second picture the owners of the grey cells from top to bottom; use letters filnptuvwxyz.
Comments
on 20. February 2017, 22:58 by ibag
Tolles Rätsel, wenn man erstmal die Muße hat, sich reinzudenken.
on 12. February 2017, 20:20 by Voyager
text extended in the sense of dm_litvs thankworthy comment. extensions in text are in bold letters.
on 12. February 2017, 18:27 by dm_litv
as i can see from the example - reflections only along by the edges of the pentominoes.
on 12. February 2017, 11:12 by sandmoppe
Looks interesting. Very nice animation.
