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Advent calendar 2015
3 December
All 2015 advent puzzles
~
More information
In August, I wrote about
MENACE
, a machine learning robot built from matchboxes which plays noughts and crosses. How many matchboxes are needed to build MENACE?
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304
Tags:
menace
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triangles
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algebra
sum to infinity
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chocolate
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christmas
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gerrymandering
tangents
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star numbers
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chalkdust crossnumber
coins
unit fractions
advent
time
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mean
numbers
products
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triangle numbers
determinants
floors
geometric means
binary
even numbers
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odd numbers
lines
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median
irreducible numbers
clocks
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decahedra
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cube numbers
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rugby
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factorials
tiling
Archive
Show me a random puzzle
▼ show ▼
▲ hide ▲
Most recent collections
Advent calendar 2023
Advent calendar 2022
Advent calendar 2021
Advent calendar 2020
List of all puzzles
Tags
chess
digits
probability
factorials
sets
colouring
chocolate
christmas
crosswords
sport
circles
people maths
lines
coins
binary
hexagons
differentiation
percentages
cubics
range
geometry
parabolas
chalkdust crossnumber
scales
squares
multiplication
speed
partitions
regular shapes
quadrilaterals
money
combinatorics
sequences
polygons
tiling
floors
crossnumbers
even numbers
dates
cryptic crossnumbers
complex numbers
rectangles
taxicab geometry
geometric mean
menace
quadratics
unit fractions
expansions
shapes
bases
means
clocks
digital clocks
dodecagons
calculus
balancing
division
3d shapes
square numbers
triangles
tangents
indices
cards
angles
cube numbers
remainders
triangle numbers
algebra
digital products
tournaments
the only crossnumber
spheres
consecutive numbers
sum to infinity
pascal's triangle
irreducible numbers
consecutive integers
averages
numbers
matrices
planes
folding tube maps
ellipses
doubling
games
shape
multiples
arrows
sums
surds
determinants
perfect numbers
square roots
integration
graphs
albgebra
functions
crossnumber
odd numbers
prime numbers
dice
area
pentagons
addition
wordplay
elections
decahedra
cryptic clues
volume
dominos
number
gerrymandering
ave
factors
polynomials
products
perimeter
routes
symmetry
proportion
palindromes
geometric means
mean
coordinates
axes
advent
logic
books
probabilty
star numbers
integers
grids
time
rugby
fractions
trigonometry
median
2d shapes
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