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 »

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

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Must remember to get round to this. Have bookmarked it. Sounds good
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James S Roper
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Re: Paradox: A logic puzzle

Post 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.
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Ben Wilson
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Re: Paradox: A logic puzzle

Post 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.
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