mscroggs.co.uk
mscroggs.co.uk

subscribe

Blog

 2024-12-04 

Christmas card 2024

Showing all comments about the post Christmas card 2024. To return to the blog post, click here.

Comments

Comments in green were written by me. Comments in blue were not written by me.
I enjoyed solving problems for this card very much! Thanks a lot! I had a great time!
Happy New Year! Greetings from Ukraine.
Anna
                 Reply
Matt, great card this year! Problems 1 and 2 are slightly ambiguous though in that you did not specify that each digit could only be used once.

I initially thought the answers were simply 44×44 = 1936 and 99×99999999 = 9899999901, respectively ????
Dan Whitman
×1      ×1           Reply
I find that I can enter seven correct answers without issue. however, an eighth answer causes the entire tree to vanish.

I'm using Firefox on Windows 11.
hakon
                 Reply
@HJ: I can't reproduce that error on Firefox or Chrome on Ubuntu - although I did notice I'd left some debug outputting on, which I've now removed. Perhaps that was causing the issue.

If anyone else hits this issue, please let me know.
Matthew
            ×1     Reply
On my machine (Mac, using either Firefox or Chrome, including private mode so no plugins) the puzzle disappears when I complete the answers for 1, 3 and 9. I'm presuming my answers are correct -- the pattern they create is pretty clear and looks reasonable.
HJ
                 Reply
I fond this card quite amusing. If I were clever enogh, I cold solve more of the problems! - Cheers from the USA
mitch
                 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 "hexagon" 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 weather station a gamut of games crosswords the aperiodical accuracy finite group pizza cutting kings numerical analysis fractals tennis crossnumber exponential growth radio 4 preconditioning arithmetic correlation phd final fantasy flexagons mathslogicbot crochet matrix of minors games reuleaux polygons recursion chess raspberry pi matrix multiplication gather town logs craft royal baby christmas card hannah fry approximation interpolation sobolev spaces hexapawn countdown polynomials tmip zines ternary logo newcastle graph theory errors stirling numbers inverse matrices electromagnetic field rugby matrix of cofactors light live stream datasaurus dozen dates friendly squares nine men's morris golden spiral machine learning frobel quadrilaterals data visualisation cambridge determinants braiding martin gardner inline code pascal's triangle cross stitch pi approximation day advent calendar football london underground finite element method go databet asteroids propositional calculus palindromes video games misleading statistics game show probability edinburgh youtube puzzles standard deviation stickers plastic ratio crossnumbers geogebra boundary element methods fonts fence posts regular expressions javascript error bars statistics sorting guest posts folding paper bots world cup computational complexity gerry anderson chalkdust magazine manchester science festival weak imposition wool runge's phenomenon mathsteroids people maths london sport books mean matrices reddit pi sound data mathsjam triangles ucl chebyshev numbers golden ratio oeis talking maths in public simultaneous equations estimation curvature pythagoras wave scattering probability european cup bempp php graphs manchester bodmas trigonometry latex big internet math-off coins dinosaurs anscombe's quartet national lottery rhombicuboctahedron christmas noughts and crosses harriss spiral convergence hats game of life dataset royal institution news 24 hour maths map projections platonic solids folding tube maps logic hyperbolic surfaces menace dragon curves geometry python signorini conditions matt parker squares turtles draughts gaussian elimination realhats pac-man programming bubble bobble binary captain scarlet

Archive

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