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

2025

Jan 2025

Christmas (2024) is over
Friendly squares

2024

2023

2022

2021

2020

2019

2018

2017

2016

2015

2014

2013

2012

Tags

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

Archive

Show me a random blog post
▼ show ▼

© Matthew Scroggs 2012–2025