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Paradox: A logic puzzle

Posted: Sat May 30, 2020 11:20 am
by Ben Wilson
Here's my newest thing. Inside this zip file is a 15x15 grid and 56 tetrominoes. The goal is to place all the tetrominoes on the grid so that it will have 4 fold rotational symmetry and 4 axes of reflection. You can rotate each tetromino as needed, but you can't flip them to use their mirror image. Good luck. :)

Re: Paradox: A logic puzzle

Posted: Tue Jun 16, 2020 6:20 am
by Callum Todd
Must remember to get round to this. Have bookmarked it. Sounds good

Re: Paradox: A logic puzzle

Posted: Sat Jun 27, 2020 10:14 am
by James S Roper
I think I've cracked it. That was good fun! Once you realise a couple of important tricks it falls into place quite beautifully.

Re: Paradox: A logic puzzle

Posted: Sat Jun 27, 2020 10:51 pm
by Ben Wilson
James S Roper wrote:
Sat Jun 27, 2020 10:14 am
I think I've cracked it. That was good fun! Once you realise a couple of important tricks it falls into place quite beautifully.
Glad you enjoyed it! :-) I'd be interested to see if your solution was identical to mine and which tricks in particular you used.