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>
To prove you are not a spam bot, please type "etik" backwards in the box below (case sensitive):

Archive

Show me a random blog post
 2020 

Feb 2020

PhD thesis, chapter ∞
PhD thesis, chapter 5
PhD thesis, chapter 4
PhD thesis, chapter 3
Inverting a matrix
PhD thesis, chapter 2

Jan 2020

PhD thesis, chapter 1
Gaussian elimination
Matrix multiplication
Christmas (2019) is over
 2019 
▼ show ▼
 2018 
▼ show ▼
 2017 
▼ show ▼
 2016 
▼ show ▼
 2015 
▼ show ▼
 2014 
▼ show ▼
 2013 
▼ show ▼
 2012 
▼ show ▼

Tags

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

Archive

Show me a random blog post
▼ show ▼
© Matthew Scroggs 2012–2020