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Advent calendar 2017
14 December
All 2017 advent puzzles
~
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There are
204 squares (of any size) in an 8×8 grid of squares
. Today's number is the number of squares in a 13×13 grid of squares
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819
Tags:
square numbers
,
squares
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Most recent collections
Advent calendar 2023
Advent calendar 2022
Advent calendar 2021
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List of all puzzles
Tags
decahedra
advent
matrices
indices
digits
tournaments
3d shapes
games
grids
parabolas
ellipses
dates
binary
people maths
colouring
shapes
square numbers
tangents
proportion
dice
bases
irreducible numbers
sum to infinity
sets
polynomials
volume
mean
remainders
taxicab geometry
crossnumber
clocks
calculus
area
surds
rectangles
menace
shape
prime numbers
dominos
ave
folding tube maps
chess
consecutive numbers
cube numbers
planes
differentiation
even numbers
angles
factorials
complex numbers
scales
chalkdust crossnumber
integers
square roots
crossnumbers
means
axes
consecutive integers
the only crossnumber
coins
determinants
sums
symmetry
sequences
numbers
crosswords
geometric means
cubics
spheres
coordinates
star numbers
digital clocks
range
doubling
multiples
chocolate
gerrymandering
averages
pascal's triangle
triangles
partitions
floors
hexagons
lines
christmas
number
cryptic clues
algebra
cards
perimeter
median
books
perfect numbers
multiplication
dodecagons
speed
time
geometry
odd numbers
pentagons
circles
logic
probabilty
quadrilaterals
routes
triangle numbers
geometric mean
rugby
trigonometry
polygons
percentages
addition
wordplay
graphs
factors
cryptic crossnumbers
money
squares
combinatorics
digital products
albgebra
products
functions
unit fractions
palindromes
division
elections
expansions
tiling
integration
sport
arrows
quadratics
balancing
fractions
2d shapes
probability
regular shapes
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