mscroggs.co.uk
mscroggs.co.uk

subscribe

Blog

Christmas (2018) is coming!

 2018-11-25 
This year, the front page of mscroggs.co.uk will once again feature an advent calendar, just like last year, 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: one of Santa's five helpers—Kip Urples, Jo Ranger, Meg Reeny, Fred Metcalfe, and Bob Luey—has stolen all the presents during the North Pole's annual Sevenstival. You need to find the culprit before Christmas is ruined for everyone.
Every year in late November, Santa is called away from the North Pole for a ten hour meeting in which a judgemental group of elders decide who has been good and who has been naughty. While Santa is away, it is traditional for his helpers celebrate Sevenstival. Sevenstival gets its name from the requirement that every helper must take part in exactly seven activities during the celebration; this year's available activities were billiards, curling, having lunch, solving maths puzzles, table tennis, skiing, chess, climbing and ice skating.
Each activity must be completed in one solid block: it is forbidden to spend some time doing an activity, take a break to do something else then return to the first activity. This year's Sevenstival took place between 0:00 and 10:00 (North Pole standard time).
During this year's Sevenstival, one of Santa's helpers spent the time for one of their seven activities stealing all the presents from Santa's workshop. Santa's helpers have 24 pieces of information to give to you, but the culprit is going to lie about everything in an attempt to confuse you, so be careful who you trust.
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 helpers tells you. You must work out who the culprit is and between which times the theft took place.
Ten randomly selected people who solve all the puzzles and submit their answers to the logic puzzle using the form behind the door on the 25th will win prizes!
The winners will also receive one of these medals:
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.
Behind the door on Christmas Day, there will be a form allowing you to submit your answers. The winner will be randomly chosen from all those who submit the correct answer before the end of 2018. 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!
To win a prize, you must submit your entry before the end of 2018. 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.
@Steve: Yes, the final door contains the entry form
Matthew
                 Reply
Do we have to submit the answer on Christmas Day?
Steve
                 Reply
@Elijah: yes
Matthew
                 Reply
In day 19, is a "6-dimensional side" a 6d hypercube?
Elijah
                 Reply
@Matthew: Oooh ...
Melli
                 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 "x-axis" in the box below (case sensitive):

Archive

Show me a random blog post
 2026 

May 2026

World Cup stickers 2026

Apr 2026

A new puzzle every day
Mixing Wordle with other games

Feb 2026

Christmas (2025) is over
 2025 

Dec 2025

Christmas card 2025

Nov 2025

Christmas (2025) is coming!

Sep 2025

The partridge puzzle

Aug 2025

TMiP 2025 puzzle hunt

Jun 2025

A nonogram alphabet

Mar 2025

How to write a crossnumber

Jan 2025

Christmas (2024) is over
Friendly squares
 2024 

Dec 2024

A regular expression Christmas puzzle
Christmas card 2024

Nov 2024

Christmas (2024) is coming!

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

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

Archive

Show me a random blog post
▼ show ▼
© Matthew Scroggs 2012–2026