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.

2019-12-10

@Jonathan: Yes, they could all be lying. But one might contradict another at some point to make this impossible...

Matthew
on /blog/69

2019-12-12

@Matthew: If an inhabitant is a liar, do they always lie?

(anonymous)
on /blog/69

2019-12-12

@(anonymous): Yes. Every islander will either always tell the truth or always lie.

Matthew
on /blog/69

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

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

Archive

Show me a random blog post
▼ show ▼

© Matthew Scroggs 2012–2026