Paradox: A logic puzzle

Cerebral distractions of every kind, mostly but not exclusively Countdown-related.

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Ben Wilson
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Paradox: A logic puzzle

Post by Ben Wilson » Sat May 30, 2020 11:20 am

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. :)

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Callum Todd
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Re: Paradox: A logic puzzle

Post by Callum Todd » Tue Jun 16, 2020 6:20 am

Must remember to get round to this. Have bookmarked it. Sounds good
Mark Deeks wrote:Callum Todd looks like a young Ted Bundy.

James S Roper
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Re: Paradox: A logic puzzle

Post by James S Roper » 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.

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Ben Wilson
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Re: Paradox: A logic puzzle

Post by Ben Wilson » Sat Jun 27, 2020 10:51 pm

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.

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