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.

2024-12-27

@Seth Cohen: Thanks Seth, I solved it by looking at the 5×5 picture and thinking harder. Thanks to Matthew for another enjoyable set of puzzles. I look forward to reading the proper solution.

Reza
on /blog/111

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

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

Archive

Show me a random blog post
▼ show ▼

© Matthew Scroggs 2012–2026