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 

Sunday Afternoon Maths LXVII

Coloured weights
Not Roman numerals

Advent calendar 2018

Sunday Afternoon Maths LXVI

Cryptic crossnumber #2

Sunday Afternoon Maths LXV

Cryptic crossnumber #1
Breaking Chocolate
Square and cube endings

List of all puzzles

Tags

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

Archive

Show me a random puzzle
▼ show ▼
© Matthew Scroggs 2019