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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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doubling
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routes
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cryptic clues
multiplication
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consecutive integers
ave
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pentagons
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Archive
Show me a random puzzle
▼ show ▼
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Most recent collections
Advent calendar 2025
Advent calendar 2024
Advent calendar 2023
Advent calendar 2022
List of all puzzles
Tags
logic
determinants
chocolate
square grids
grids
bases
powers
angles
gerrymandering
addition
dates
even numbers
people maths
sport
prime factors
partitions
range
numbers
colouring
advent
graphs
doubling
christmas
cryptic clues
multiplication
folding tube maps
expansions
rectangles
quadrilaterals
pentagons
functions
dominos
triangle numbers
median
division
tiling
mean
polygons
triangles
star numbers
elections
cards
factors
time
products
unit fractions
irreducible numbers
axes
dice
perfect numbers
geometric mean
games
geometry
quadratics
crossnumbers
means
indices
menace
cryptic crossnumbers
geometric means
consecutive integers
prime numbers
scales
speed
combinatorics
planes
cube numbers
the only crossnumber
integers
complex numbers
sequences
balancing
routes
matrices
proportion
chalkdust crossnumber
spheres
digital products
cubics
floors
consecutive numbers
pascal's triangle
trigonometry
arrows
sum to infinity
calculus
perimeter
hexagons
decahedra
lines
algebra
binary
polynomials
medians
square numbers
squares
lists
crosswords
regular shapes
ellipses
odd numbers
chess
digits
sums
books
digital clocks
volume
integration
dodecagons
shapes
number
area
shape
clocks
probability
surds
taxicab geometry
wordplay
probabilty
palindromes
tournaments
percentages
circles
multiplaction squares
parabolas
fractions
ave
money
2d shapes
xor
tangents
coins
neighbours
symmetry
coordinates
square roots
sets
factorials
differentiation
remainders
3d shapes
averages
rugby
albgebra
multiples
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