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.

2024-07-31

Incorrect answers are treated is correct.

Looking at the JavaScript code, I found that any value that is a key in the array "regions" is treated as correct for all puzzles.

Lars Nordenström
on /blog/108

×4

×4

×4

×4

×4

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

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

Archive

Show me a random blog post
▼ show ▼

© Matthew Scroggs 2012–2025