mscroggs.co.uk
mscroggs.co.uk

subscribe

Blog

Christmas (2015) is over

 2016-01-01 
The deadline for entering the 2015 Advent calendar competition has now passed. You can see all the puzzles and their answers here.
Thank-you to everyone who took part in the competition! In total, 23 people submitted answers to the puzzles. Every one of these had correct answers to at least 18 of the puzzles. The winners are as follows:
#NameDetails
1ScottAll correct at 5:00:18 GMT on Christmas Day
2Louis de MendoncaAll correct at 5:00:32 GMT on Christmas Day
3Alex BoltonAll correct at 5:00:34 GMT on Christmas Day
4Martin HarrisAll correct at 6:15 GMT on Christmas Day
5Linus HamiltonAll correct at 14:12 GMT on Christmas Day
6ZephiAll correct at 20:40 GMT on Christmas Day
7Daniel ChivertonAll but one (5 December) correct at 5:00:24 GMT on Christmas Day
8Jon PalinAll but one (12 December) correct at 5:00:34 GMT on Christmas Day
9Kathryn CoffinAll but one (5 December) correct at 6:28 GMT on Christmas Day
10Félix BretonAll but one (15 December) correct at 9:05 GMT on Christmas Day
I will be in touch will all the entrants in the next few days and I will post pictures of prizes here once they are on their way!
I have already started working on puzzles for next year's (in fact this year's) calendar, so make sure you're back here in December...
                        
(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.
@stephan: It looks like the code I wrote to check the solutions were unique contained errors. This might explain why first question was very difficult to solve with logic alone.
Matthew
×1                 Reply
Are you sure http://www.mscroggs.co.uk/puzzles/126 have unique solutions. See e.g. http://cryptarithms.awardspace.us/solv... which gives lots of solutions
stephan
                 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 "f" then "a" then "c" then "t" then "o" then "r" 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

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

Archive

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