mscroggs.co.uk
mscroggs.co.uk

subscribe

Puzzles

Breaking Chocolate

You are given a bar of chocolate made up of 15 small blocks arranged in a 3×5 grid.
You want to snap the chocolate bar into 15 individual pieces. What is the fewest number of snaps that you need to break the bar? (One snap consists of picking up one piece of chocolate and snapping it into two pieces.)

Show answer

Archive

Show me a random puzzle
 Most recent collections 

Advent calendar 2019

Sunday Afternoon Maths LXVII

Coloured weights
Not Roman numerals

Advent calendar 2018

Sunday Afternoon Maths LXVI

Cryptic crossnumber #2

List of all puzzles

Tags

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

Archive

Show me a random puzzle
▼ show ▼
© Matthew Scroggs 2012–2020