mscroggs.co.uk
mscroggs.co.uk

subscribe

Blog

Christmas (2020) is coming!

 2020-11-22 
This year, the front page of mscroggs.co.uk will once again feature an Advent calendar, just like in the five previous Decembers. Behind each door, there will be a puzzle with a three digit solution. The solution to each day's puzzle forms part of a logic puzzle:
It's nearly Christmas and something terrible has happened: you've just landed in a town in the Arctic circle with a massive bag of letters for Santa, but you've lost to instructions for how to get to Santa's house near the north pole. You need to work out where he lives and deliver the letters to him before Christmas is ruined for everyone.
Due to magnetic compasses being hard to use near the north pole, you brought with you a special Advent compass. This compass has nine numbered directions. Santa has given the residents of the town clues about a sequence of directions that will lead to his house; but in order to keep his location secret from present thieves, he gave each resident two clues: one clue is true, and one clue is false.
The residents' clues will reveal to you a seqeunce of compass directions to follow. You can try out your sequences on this map.
Behind each day (except Christmas Day), there is a puzzle with a three-digit answer. Each of these answers forms part of a resident's clue. You must use these clues to work out how to find Santa's house.
Ten randomly selected people who solve all the puzzles, find Santa's house, and fill in the entry form behind the door on the 25th will win prizes!
The winners will be randomly chosen from all those who submit the entry form before the end of 2020. Each day's puzzle (and the entry form on Christmas Day) will be available from 5:00am GMT. But as the winners will be selected randomly, there's no need to get up at 5am on Christmas Day to enter!
As you solve the puzzles, your answers will be stored. To share your stored answers between multiple devices, enter your email address below the calendar and you will be emailed a magic link to visit on your other devices.
To win a prize, you must submit your entry before the end of 2020. Only one entry will be accepted per person. If you have any questions, ask them in the comments below or on Twitter.
So once December is here, get solving! Good luck and have a very merry Christmas!
                        
(Click on one of these icons to react to this blog post)

You might also enjoy...

Comments

Comments in green were written by me. Comments in blue were not written by me.
Nice one today (16 December) :)
Did he?... did he really?... starts to look like it... yes he did! :D
Gert-Jan
×3   ×6   ×3   ×1   ×2     Reply
@A: Aha, I should have thought of this! Puzzles completed :-)
(anonymous)
×1                 Reply
@Dean: you can also go through each answer one at a time and change a digit; if the number of wrong answers goes up then your answer for that question was correct
A
×1   ×1              Reply
@Dean: Yes, I'm planning to change how that bit works. Check back tomorrow or the next day for a more fun finish!
Matthew
   ×1              Reply
A bit harsh that we can’t tell exactly which answers are wrong! I won’t have time to revisit every puzzle - and its kind of less fun redoing something that is already correct... :-(
Dean
                 Reply
@Marty: Yes, I'm in the middle of correcting the clues page to add these details back
Matthew
   ×1              Reply
 Add a Comment 


I will only use your email address to reply to your comment (if a reply is needed).

Allowed HTML tags: <br> <a> <small> <b> <i> <s> <sup> <sub> <u> <spoiler> <ul> <ol> <li> <logo>
To prove you are not a spam bot, please type "decagon" in the box below (case sensitive):

Archive

Show me a random blog post
 2024 

Feb 2024

Zines, pt. 2

Jan 2024

Christmas (2023) is over
 2023 
▼ show ▼
 2022 
▼ show ▼
 2021 
▼ show ▼
 2020 
▼ show ▼
 2019 
▼ show ▼
 2018 
▼ show ▼
 2017 
▼ show ▼
 2016 
▼ show ▼
 2015 
▼ show ▼
 2014 
▼ show ▼
 2013 
▼ show ▼
 2012 
▼ show ▼

Tags

data visualisation youtube latex advent calendar estimation javascript polynomials determinants map projections harriss spiral logs exponential growth wave scattering countdown correlation finite element method matrix of cofactors curvature manchester science festival flexagons sound dates machine learning final fantasy menace fonts mathsteroids tennis fence posts radio 4 the aperiodical gerry anderson dinosaurs realhats craft royal baby wool inline code matrix of minors recursion sport numbers cross stitch martin gardner bodmas 24 hour maths palindromes stirling numbers dataset light oeis dragon curves golden spiral triangles platonic solids books quadrilaterals bubble bobble captain scarlet edinburgh game of life graph theory news speed people maths rhombicuboctahedron ternary logo talking maths in public squares fractals draughts noughts and crosses pascal's triangle hats folding paper london underground football nine men's morris finite group frobel mean convergence weather station trigonometry coins world cup guest posts newcastle statistics inverse matrices turtles stickers datasaurus dozen signorini conditions game show probability video games weak imposition ucl manchester mathslogicbot golden ratio simultaneous equations matt parker interpolation misleading statistics data pi hexapawn london accuracy big internet math-off electromagnetic field programming live stream error bars binary preconditioning logic sorting puzzles probability raspberry pi propositional calculus cambridge go chebyshev a gamut of games rugby mathsjam chalkdust magazine pythagoras boundary element methods gather town braiding runge's phenomenon christmas card geogebra anscombe's quartet plastic ratio matrices tmip hyperbolic surfaces national lottery hannah fry european cup asteroids crossnumber errors standard deviation phd graphs arithmetic pi approximation day computational complexity chess databet reddit reuleaux polygons bempp pac-man numerical analysis folding tube maps python approximation zines geometry sobolev spaces matrix multiplication php royal institution games crochet pizza cutting gaussian elimination christmas

Archive

Show me a random blog post
▼ show ▼
© Matthew Scroggs 2012–2024