Happy 22nd of December!

Throughout the month, to accompany the release of our book on the Mathematics of Christmas, Hannah Fry & I are tweeting out Christmathsy bits and pieces, one a day, advent calendar style. Assuming we don’t run out of ideas, that is…

You may remember from Day 10 that Santa is not all that good with passwords and security. Well…

Here’s the letter in copyable form:

05-06-02-19 20-02-15-21-02. 17-13-06-02-20-06 04-16-22-13-05 26-16-22 03-19-10-15-08 14-06 02 ~**MESSAGE~CORRUPTED**~ 6765-10946-8-233-233-1-10946-8-5 55-3-987-6765-1-34-8-5-4181-987-610. 10946-34-1-610-144 121393-987-17711. 1-1-4181-1 (1-21-8-5 8)

Answers via the comments or on Twitter. All correct answers will be rewarded with deep respect and warm Christmas wishes. Enjoy!

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Happy 21st of December!

Throughout the month, to accompany the release of our book on the Mathematics of Christmas, Hannah Fry & I are tweeting out Christmathsy bits and pieces, one a day, advent calendar style. Assuming we don’t run out of ideas, that is…

Today, we’re investigating a crime…

Answers via the comments or on Twitter. All correct answers will be rewarded with deep respect and warm Christmas wishes. Enjoy!

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Happy 20th of December!

Throughout the month, to accompany the release of our book on the Mathematics of Christmas, Hannah Fry & I are tweeting out Christmathsy bits and pieces, one a day, advent calendar style. Assuming we don’t run out of ideas, that is…

OK, since the upcoming final four puzzles of the calendar may be a little tough, today, some light relief…

Answers via the comments or on Twitter. All correct answers will be rewarded with deep respect and warm Christmas wishes. Enjoy!

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Happy 19th of December!

Throughout the month, to accompany the release of our book on the Mathematics of Christmas, Hannah Fry & I are tweeting out Christmathsy bits and pieces, one a day, advent calendar style. Assuming we don’t run out of ideas, that is…

Answers via the comments or on Twitter. All correct answers will be rewarded with deep respect and warm Christmas wishes. Enjoy!

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Happy 18th of December!

Throughout the month, to accompany the release of our book on the Mathematics of Christmas, Hannah Fry & I are tweeting out Christmathsy bits and pieces, one a day, advent calendar style. Assuming we don’t run out of ideas, that is…

Today’s puzzle has two levels of difficulty…

Fun:

… and Fiendish:

Answers via the comments or on Twitter. All correct answers will be rewarded with deep respect and warm Christmas wishes. Enjoy!

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Happy 17th of December!

Throughout the month, to accompany the release of our book on the Mathematics of Christmas, Hannah Fry & I are tweeting out Christmathsy bits and pieces, one a day, advent calendar style. Assuming we don’t run out of ideas, that is…
 

The lyrics were created using the same Markov model used to generate the Queen’s tweets. How many of the nine Christmas songs can you identify?

Answers via the comments or on Twitter. All correct answers will be rewarded with deep respect and warm Christmas wishes. Enjoy!

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Happy 16th of December!

Throughout the month, to accompany the release of our book on the Mathematics of Christmas, Hannah Fry & I are tweeting out Christmathsy bits and pieces, one a day, advent calendar style. Assuming we don’t run out of ideas, that is…

Today, we’re drawing inspiration from the great Only Connect (sort of…):

To interpret the pictures, remember it’s a Christmas quiz…

Answers via the comments or on Twitter. All correct answers will be rewarded with deep respect and warm Christmas wishes. Enjoy!

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Happy 15th of December!

Throughout the month, to accompany the release of our book on the Mathematics of Christmas, Hannah Fry & I are tweeting out Christmathsy bits and pieces, one a day, advent calendar style. Assuming we don’t run out of ideas, that is…

Today, I’m afraid there’s bad news for your seasonal transport business…

Answers via the comments or on Twitter. All correct answers will be rewarded with deep respect and warm Christmas wishes. Enjoy!

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