mscroggs
.co.uk
mscroggs
.co.uk
blog
puzzles
academic
talks
contact
subscribe
subscribe
Loading image...
Comment
Comments
Comments in green were written by me. Comments in blue were not written by me.
2016-12-12
I think problem 5 needs clarification. By numbers, you mean positive integers? Does the sum just consisting of the number 35 count? Are these ordered or unordered sums?
Thank you for all your hard work on this, it's a lot of fun.
Mike
on
/blog/36
2016-12-13
@
Mike
: I've added a clarification to puzzle 5. Glad you're enjoying the puzzles!
Matthew
on
/blog/36
Archive
Show me a random blog post
2024
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 (√3-√2)+9 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
newcastle
geometry
cross stitch
the aperiodical
craft
fence posts
statistics
harriss spiral
speed
raspberry pi
quadrilaterals
squares
world cup
games
dragon curves
golden ratio
pac-man
preconditioning
mathsjam
braiding
databet
plastic ratio
stirling numbers
numbers
matrix of cofactors
turtles
runge's phenomenon
logic
european cup
folding tube maps
ternary
latex
hats
menace
palindromes
wave scattering
manchester science festival
reddit
approximation
live stream
london underground
24 hour maths
game show probability
books
sport
martin gardner
nine men's morris
frobel
arithmetic
radio 4
football
sorting
sound
data
hannah fry
propositional calculus
errors
logs
royal baby
convergence
numerical analysis
royal institution
manchester
platonic solids
video games
dataset
a gamut of games
pi
dinosaurs
final fantasy
polynomials
matrices
people maths
trigonometry
signorini conditions
machine learning
datasaurus dozen
ucl
pythagoras
computational complexity
inverse matrices
phd
captain scarlet
misleading statistics
binary
error bars
anscombe's quartet
interpolation
hexapawn
game of life
christmas card
bodmas
fractals
pizza cutting
flexagons
crochet
light
curvature
tmip
finite element method
matrix multiplication
noughts and crosses
dates
cambridge
realhats
logo
determinants
draughts
estimation
boundary element methods
oeis
pascal's triangle
python
folding paper
gaussian elimination
christmas
fonts
javascript
simultaneous equations
probability
bubble bobble
crossnumber
graph theory
golden spiral
weather station
map projections
coins
weak imposition
accuracy
gerry anderson
chess
youtube
london
advent calendar
bempp
matrix of minors
mean
go
mathsteroids
programming
rugby
sobolev spaces
tennis
zines
data visualisation
recursion
gather town
geogebra
mathslogicbot
inline code
reuleaux polygons
triangles
countdown
edinburgh
chalkdust magazine
asteroids
puzzles
graphs
finite group
rhombicuboctahedron
standard deviation
guest posts
news
pi approximation day
big internet math-off
correlation
chebyshev
matt parker
exponential growth
hyperbolic surfaces
talking maths in public
stickers
national lottery
electromagnetic field
wool
php
Archive
Show me a random blog post
▼ show ▼
▲ hide ▲
2024
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 (√3-√2)+9 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
finite group
mean
folding paper
london
noughts and crosses
programming
standard deviation
quadrilaterals
runge's phenomenon
wave scattering
triangles
zines
chebyshev
matrix of cofactors
data visualisation
hexapawn
phd
stirling numbers
a gamut of games
fractals
pythagoras
go
anscombe's quartet
gaussian elimination
video games
chess
cambridge
realhats
pi approximation day
approximation
boundary element methods
golden spiral
javascript
estimation
coins
sobolev spaces
logo
weather station
gather town
finite element method
captain scarlet
gerry anderson
football
binary
countdown
graphs
mathslogicbot
reddit
matt parker
polynomials
determinants
dates
pascal's triangle
rhombicuboctahedron
inverse matrices
asteroids
simultaneous equations
speed
wool
dinosaurs
matrix multiplication
palindromes
frobel
databet
royal institution
hyperbolic surfaces
sport
guest posts
martin gardner
tmip
probability
advent calendar
statistics
folding tube maps
news
electromagnetic field
pac-man
royal baby
bempp
ternary
world cup
crossnumber
people maths
squares
weak imposition
dataset
php
bubble bobble
radio 4
nine men's morris
error bars
trigonometry
raspberry pi
curvature
numbers
fonts
logs
latex
plastic ratio
cross stitch
draughts
correlation
game of life
mathsjam
convergence
newcastle
rugby
live stream
christmas
game show probability
numerical analysis
dragon curves
puzzles
manchester science festival
hats
sorting
matrix of minors
flexagons
24 hour maths
youtube
misleading statistics
talking maths in public
golden ratio
chalkdust magazine
map projections
machine learning
the aperiodical
logic
light
european cup
edinburgh
exponential growth
big internet math-off
signorini conditions
inline code
recursion
sound
crochet
geometry
geogebra
turtles
platonic solids
braiding
graph theory
london underground
stickers
manchester
menace
python
mathsteroids
preconditioning
national lottery
harriss spiral
datasaurus dozen
interpolation
oeis
propositional calculus
reuleaux polygons
final fantasy
arithmetic
computational complexity
ucl
errors
tennis
pi
craft
data
bodmas
matrices
accuracy
books
pizza cutting
fence posts
christmas card
hannah fry
games
© Matthew Scroggs 2012–2024
Thank you for all your hard work on this, it's a lot of fun.
on /blog/36