mscroggs.co.uk
mscroggs.co.uk

subscribe

Comment

Comments

Comments in green were written by me. Comments in blue were not written by me.
I feel compelled to admit that something over a hundred of the checks on day 14 were me after I gave up all hope of figuring out the elegant solution and just started counting up from what I had come up with as a lower limit. I really, really wanted a go at the logic puzzle.
At least my failed attempt to figure that one made me realize that I needed to change my answer to day 12.
Kim
on /blog/93
               

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

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

Archive

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