mscroggs.co.uk
mscroggs.co.uk

subscribe

Blog

 2018-11-25 

Christmas (2018) is coming!

Showing all comments about the post Christmas (2018) is coming!. To return to the blog post, click here.

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
@Melli: the second digit doesn't need to be even, only the final digit of the second column must be even (the column contains a three digit even number). I'm going to add a clarification to make this clearer.
Matthew
                 Reply
@Matthew: But if the second digit has to be even and the numbers 1-9 only have 3,4 or 5 letters, the second digit HAS to be a 4... (i double checked the english spellings)
Melli
                 Reply
@Melli: there's a way to solve it with no 4 in the first row...
Matthew
                 Reply
The 8th puzzle is not solvable: Due to the numbers 1-9 having either 3,4 or 5 letters in their name, in the first row, you would need to use 4 at least twice, one of them beeing in the top right corner and also due to a multiple of an even number always beeing even, the bottom right corner also has to be even, which contradicts the contition of the right column only having 1 even Number.
Melli
                 Reply
Signing up
Neal
                 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 "integer" in the box below (case sensitive):

Archive

Show me a random blog post
 2025 

Mar 2025

How to write a crossnumber

Jan 2025

Christmas (2024) is over
Friendly squares
 2024 
▼ show ▼
 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

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

Archive

Show me a random blog post
▼ show ▼
© Matthew Scroggs 2012–2025