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.

2021-12-13

Can it be assumed that before each reindeer has a different favourite food, and/or that the saboteur fed each reindeer a unique food each test flight?

Elijah
on /blog/91

×1

2021-12-14

@Elijah: Each reindeer was fed exactly one food before each test flight. Multiple reindeer may have the same favourite foods.

Matthew
on /blog/91

×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

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

Archive

Show me a random blog post
▼ show ▼

© Matthew Scroggs 2012–2026