mscroggs.co.uk

mscroggs.co.uk

blog puzzles academic talks contact subscribe ↓ ☰ ↓

Comment

Comments

Comments in green were written by me. Comments in blue were not written by me.

2026-04-28

@nope: Congratulations on being the first person in 12 years to spot that! I don't think I have the original file for that flowchart, so it may take me a little bit of time to correct it...

Matthew
on /blog/11

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

Jan 2024

Christmas (2023) is over

2023

2022

2021

2020

2019

2018

2017

2016

2015

2014

2013

2012

Tags

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

Archive

Show me a random blog post
▼ show ▼

© Matthew Scroggs 2012–2026