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

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

Archive

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