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.

2015-12-25

@Anonymous1: You are (now) correct and on the leaderboard. Well done!

Matthew
on /blog/23

×3

×3

×3

×3

×3

Archive

Show me a random blog post

2026

Feb 2026

Christmas (2025) is over

2025

2024

2023

2022

2021

2020

2019

2018

2017

2016

2015

2014

2013

2012

Tags

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

Archive

Show me a random blog post
▼ show ▼

© Matthew Scroggs 2012–2026