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Advent calendar 2023
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Advent calendar 2021
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chess
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square roots
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colouring
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regular shapes
combinatorics
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chalkdust crossnumber
2d shapes
factorials
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the only crossnumber
sum to infinity
trigonometry
people maths
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numbers
tournaments
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perimeter
cube numbers
matrices
quadratics
money
products
geometric mean
proportion
planes
graphs
functions
bases
multiplication
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circles
pentagons
addition
lines
range
christmas
polynomials
means
algebra
dice
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mean
digital clocks
decahedra
sets
spheres
complex numbers
percentages
number
dodecagons
crosswords
folding tube maps
coins
taxicab geometry
gerrymandering
geometry
indices
division
time
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calculus
rectangles
ellipses
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Archive
Show me a random puzzle
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Most recent collections
Advent calendar 2023
Advent calendar 2022
Advent calendar 2021
Advent calendar 2020
List of all puzzles
Tags
factors
time
palindromes
pentagons
dominos
perimeter
chalkdust crossnumber
clocks
polynomials
odd numbers
polygons
chess
people maths
surds
colouring
tangents
partitions
addition
books
geometry
area
multiplication
coordinates
averages
bases
menace
integration
sets
differentiation
shape
triangle numbers
remainders
indices
pascal's triangle
ave
3d shapes
volume
consecutive numbers
cube numbers
arrows
square roots
lines
elections
matrices
tiling
gerrymandering
range
probability
mean
algebra
speed
regular shapes
irreducible numbers
circles
percentages
rectangles
christmas
money
the only crossnumber
geometric mean
spheres
rugby
coins
dice
factorials
advent
sums
dates
tournaments
crossnumbers
probabilty
crossnumber
perfect numbers
graphs
sum to infinity
cryptic clues
sport
games
2d shapes
wordplay
cryptic crossnumbers
fractions
hexagons
balancing
trigonometry
geometric means
even numbers
star numbers
multiples
crosswords
cubics
prime numbers
ellipses
means
routes
digital clocks
scales
triangles
albgebra
digital products
folding tube maps
dodecagons
determinants
combinatorics
unit fractions
parabolas
quadrilaterals
grids
taxicab geometry
division
median
numbers
calculus
number
doubling
angles
functions
sequences
cards
axes
chocolate
logic
digits
integers
consecutive integers
planes
shapes
products
decahedra
complex numbers
floors
squares
expansions
proportion
binary
square numbers
symmetry
quadratics
© Matthew Scroggs 2012–2024