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.

2025-09-07

@Chris B: I put a little more text on the interactive page. Hopefully it's a bit clearer now what it's expecting (click and click, not drag)

Matthew
on /blog/119

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

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

Archive

Show me a random blog post
▼ show ▼

© Matthew Scroggs 2012–2026