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.

2026-02-08

Yes I did puzzle 9 by working out how many would be coloured in each row or something, and only realised that there was a simpler way when I saw the final formula. Cheers pal

Alex Bolton
on /blog/122

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

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

Archive

Show me a random blog post
▼ show ▼

© Matthew Scroggs 2012–2026