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