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2018-12-16
The script for checking the answers doesn't work properly
Carmel
on
/blog/59
2018-12-17
@
Carmel
: It's not meant to check your answers. It only shows up red if the number you enter cannot be split into valid pairs (eg the number has an odd number of digits or one of the pairs of digits is greater than 20).
Matthew
on
/blog/59
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Log-scaled axes
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PhD thesis, chapter ∞
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Inverting a matrix
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PhD thesis, chapter 1
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Proving a conjecture
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A bad Puzzle for Today
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Origins of World War I
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Big Ben Strikes Again
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The importance of estimation error
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Braiding, pt. 2
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Making names in Life
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Proving Pythagoras' theorem
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Optimal Pac-Man
Tube map stellated rhombicuboctahedron
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Electromagnetic Field talk
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Tennis maths
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World Cup stickers
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Countdown probability, pt. 2
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New machine unfriendly £1 coin, pt. 2
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Assorted christmaths
Pointless probability
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"Uncanny" royal coincidence
Raspberry Pi weather station
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Tube map Platonic solids, pt. 2
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Archive
Show me a random blog post
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2026
May 2026
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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
Zines, pt. 2
Jan 2024
Christmas (2023) is over
2023
▼ show ▼
▲ hide ▲
Dec 2023
Christmas card 2023
Nov 2023
Christmas (2023) is coming!
Zines
Sep 2023
TMiP 2023 puzzle hunt
May 2023
Chalkdust issue 17
Apr 2023
Logo Asteroids
Mar 2023
Mathsteroids on hyperbolic surfaces
Feb 2023
The databet
Jan 2023
Christmas (2022) is over
2022
▼ show ▼
▲ hide ▲
Dec 2022
Off-by-one errors
Christmas card 2022
Nov 2022
Christmas (2022) is coming!
Oct 2022
24 Hour Maths Game Show
Mar 2022
Approximating π
Feb 2022
Build your own MENACE
Jan 2022
Christmas (2021) is over
2021
▼ show ▼
▲ hide ▲
Dec 2021
Christmas card 2021
Nov 2021
Christmas (2021) is coming!
Sep 2021
TMiP 2021 puzzle hunt
May 2021
Close encounters of the second kind
Jan 2021
Christmas (2020) is over
2020
▼ show ▼
▲ hide ▲
Dec 2020
Christmas card 2020
Nov 2020
Christmas (2020) is coming!
Jul 2020
Happy -4+τ Approximation Day!
May 2020
A surprising fact about quadrilaterals
Interesting tautologies
Mar 2020
Log-scaled axes
Feb 2020
PhD thesis, chapter ∞
PhD thesis, chapter 5
PhD thesis, chapter 4
PhD thesis, chapter 3
Inverting a matrix
PhD thesis, chapter 2
Jan 2020
PhD thesis, chapter 1
Gaussian elimination
Matrix multiplication
Christmas (2019) is over
2019
▼ show ▼
▲ hide ▲
Dec 2019
Visualising MENACE's learning
Christmas card 2019
Nov 2019
Christmas (2019) is coming!
Sep 2019
A non-converging LaTeX document
TMiP 2019 treasure punt
Jul 2019
Big Internet Math-Off stickers 2019
Jun 2019
Proving a conjecture
Apr 2019
Harriss and other spirals
Mar 2019
realhats
Jan 2019
Christmas (2018) is over
2018
▼ show ▼
▲ hide ▲
Dec 2018
Christmas cross stitch
MENACE in fiction
Christmas card 2018
Nov 2018
Christmas (2018) is coming!
Sep 2018
Runge's Phenomenon
Jul 2018
World Cup stickers 2018, pt. 3
Mathsteroids
Jun 2018
World Cup stickers 2018, pt. 2
May 2018
A bad Puzzle for Today
Apr 2018
Building MENACEs for other games
Mar 2018
A 20,000-to-1 baby?
World Cup stickers 2018
Jan 2018
Origins of World War I
Christmas (2017) is over
2017
▼ show ▼
▲ hide ▲
Dec 2017
Christmas card 2017
Nov 2017
Christmas (2017) is coming!
MENACE at Manchester Science Festival
Jun 2017
Big Ben Strikes Again
Mar 2017
The end of coins of constant width
Dragon curves II
Feb 2017
The importance of estimation error
Jan 2017
Is MEDUSA the new BODMAS?
2016
▼ show ▼
▲ hide ▲
Dec 2016
Christmas (2016) is over
Video game surfaces
Christmas card 2016
Nov 2016
Christmas (2016) is coming!
Oct 2016
Logical contradictions
Palindromic dates
Sep 2016
Tube map kaleidocycles
Jul 2016
Solving the cross diagonal cover problem
Jun 2016
Braiding, pt. 2
Braiding, pt. 1
Making names in Life
May 2016
Euro 2016 stickers
Mar 2016
Proving Pythagoras' theorem
Dragon curves
The
Mathematical Games
of Martin Gardner
Jan 2016
Christmas (2015) is over
2015
▼ show ▼
▲ hide ▲
Nov 2015
Christmas (2015) is coming!
Oct 2015
How to kick a conversion
How much will I win on the new National Lottery?
Aug 2015
How OEISbot works
MENACE
Mar 2015
Optimal Pac-Man
Tube map stellated rhombicuboctahedron
Logic bot, pt. 2
Design your own flexagon
Jan 2015
Tube map Platonic solids, pt. 3
2014
▼ show ▼
▲ hide ▲
Nov 2014
Logic bot
Sep 2014
Electromagnetic Field talk
Jun 2014
Tennis maths
May 2014
World Cup stickers
Apr 2014
Countdown probability, pt. 2
Countdown probability
Mar 2014
New machine unfriendly £1 coin, pt. 2
New machine unfriendly £1 coin
2013
▼ show ▼
▲ hide ▲
Dec 2013
Assorted christmaths
Pointless probability
Jul 2013
"Uncanny" royal coincidence
Raspberry Pi weather station
2012
▼ show ▼
▲ hide ▲
Nov 2012
Tube map Platonic solids, pt. 2
Oct 2012
Tube map Platonic solids
Tags
the aperiodical
tetris
coventry
chalkdust magazine
crossnumber
captain scarlet
platonic solids
kings
mean
phd
oeis
folding tube maps
matrix of cofactors
people maths
pizza cutting
christmas card
royal baby
weak imposition
speed
chebyshev
alphabets
bubble bobble
dragon curves
palindromes
thirteen
bempp
signorini conditions
graph theory
graphs
noughts and crosses
24 hour maths
bluesky
pascal's triangle
golden ratio
matrix multiplication
anscombe's quartet
newcastle
books
simultaneous equations
convergence
data visualisation
turtles
accuracy
crosswords
gerry anderson
geometry
probability
martin gardner
finite element method
determinants
asteroids
boundary element methods
matt parker
propositional calculus
programming
crochet
inverse matrices
plastic ratio
wool
javascript
map projections
tennis
partridge puzzle
puzzles
fractals
php
game of life
python
bots
weather station
fence posts
world cup
approximation
golden spiral
wordle
numbers
mathsteroids
standard deviation
rugby
radio 4
dates
crossnumbers
football
frobel
quadrilaterals
regular expressions
wave scattering
nine men's morris
sobolev spaces
warwick
european cup
rhombicuboctahedron
manchester science festival
numerical analysis
rust
london
logic
game show probability
runge's phenomenon
royal institution
fonts
misleading statistics
chess
interpolation
triangles
manchester
live stream
zines
london underground
sport
kenilworth
logs
draughts
trigonometry
dinosaurs
stirling numbers
hexapawn
errors
binary
electromagnetic field
hyperbolic surfaces
coins
christmas
pi approximation day
arithmetic
realhats
guest posts
games
preconditioning
nonograms
squares
pokémon wordle
braiding
reuleaux polygons
flexagons
arrangement puzzles
tmip
youtube
ucl
matrices
correlation
ternary
cross stitch
light
machine learning
mathslogicbot
edinburgh
curvature
craft
a gamut of games
databet
menace
datasaurus dozen
logo
data
pythagoras
final fantasy
big internet math-off
bodmas
estimation
statistics
sorting
video games
pac-man
national lottery
raspberry pi
pi
harriss spiral
go
pokémon
gaussian elimination
inline code
exponential growth
talking maths in public
finite group
cambridge
advent calendar
hats
matrix of minors
friendly squares
geogebra
hannah fry
recursion
sound
latex
polynomials
news
error bars
dataset
gather town
computational complexity
countdown
stickers
mathsjam
folding paper
reddit
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