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.

2020-12-25

@Dean: you can also go through each answer one at a time and change a digit; if the number of wrong answers goes up then your answer for that question was correct

×1

×1

2020-12-25

@A: Aha, I should have thought of this! Puzzles completed :-)

(anonymous)
on /blog/86

×1

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

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

Archive

Show me a random blog post
▼ show ▼

© Matthew Scroggs 2012–2026