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

Mar 2025

How to write a crossnumber

Jan 2025

Christmas (2024) is over
Friendly squares

2024

2023

2022

2021

2020

2019

2018

2017

2016

2015

2014

2013

2012

Tags

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

Archive

Show me a random blog post
▼ show ▼

© Matthew Scroggs 2012–2025