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