mscroggs.co.uk
mscroggs.co.uk

subscribe

Blog

Christmas (2019) is coming!

 2019-11-24 
This year, the front page of mscroggs.co.uk will once again feature an Advent calendar, just like last year, the year before, the year before and the year before. 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: while out on a test flight, Santa's sled was damaged and Santa, Rudolph and Blitzen fell to the ground over the Advent Isles. You need to find Santa and his reindeer before Christmas is ruined for everyone.
You have gathered one inhabitant of the four largest Advent Isles—Rum, Land, Moon and County—and they are going to give you a series of clues about where Santa and his reindeer landed. However, one or more of the islanders you have gathered may have been involved in damaging Santa's sled and causing it to crash: any islander involved in this will lie to you to attempt to stop you from finding Santa and his reindeer. Once you are ready to search for Santa, Rudolph and Blitzen, you can find the map by following this link.
Each of the clues will be about Santa's, Rudolph's or Blitzen's positions in Advent Standard Coordinates (ASC): ASC are given by six two-digit numbers with dots inbetween, for example 12.52.12.13.84.55. For this example coordinate, the islanders will refer to (the first) 12 as the first coordinate, 52 as the second coordinate, (the second) 12 as the third coordinate, 13 as the fourth coordinate, 84 as the fifth coordinate, and 55 as the sixth coordinate.
To find a point's ASC coordinates, split a map of the islands into a 9×9 grid, then number the rows and columns 1 to 9: the first two digits of ASC give the vertical then horizontal position of a square in this grid. The next two digits then give a smaller square when this square is then itself split into a 9×9 grid, and so on. An example is show below.
The ASC coordinates of this pair of flowers are 12.52.12.13.84.55 (click to enlarge).
Behind each day (except Christmas Day), there is a puzzle with a three-digit answer. Each of these answers forms part of a fact that one of the islanders tells you. You must use these clues to find Santa and his two reindeer.
Ten randomly selected people who solve all the puzzles, find Santa and his reindeer, 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 2019. 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 2019. 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!

Similar posts

Christmas (2020) is over
Christmas (2020) is coming!
Christmas (2019) is over
Christmas (2018) is over

Comments

Comments in green were written by me. Comments in blue were not written by me.
This search space is so large, it's way harder than trying to find Wally like in the children's books. Best to read everything carefully looking for any clues, and then solve all the puzzles and logic before searching randomly!
Did you know Wally is called Waldo in the US, Walter in Germany, and Charlie in France?
Dr. Matrix
×3   ×1              Reply
Thank you, I was worried. Thanks also for the puzzles, makes a change from my usual sudokus. I especially liked 3, 9, 11, 16, 21 and 23.
(anonymous)
                 Reply
@(anonymous): You don't get a confirmation email but if you hit submit you'll be entered. (I'll add confirmation emails before next year...)
Matthew
                 Reply
Do we get a confirmation email after submission of the entry form? I never received one, so I'm not sure if I am entered.
(anonymous)
                 Reply
Thanks for the nice puzzles!
Gert-Jan
                 Reply
@Seth: If you find them on the map then that's all you need to do. (And if you didn't find them yet then the entry form won't appear so you definably did everything you need to do.)
Matthew
                 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>
To prove you are not a spam bot, please type "p" then "r" then "i" then "m" then "e" in the box below (case sensitive):

Archive

Show me a random blog post
 2021 

Jan 2021

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

Tags

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

Archive

Show me a random blog post
▼ show ▼
© Matthew Scroggs 2012–2021