Skip over navigation
Cambridge University Faculty of Mathematics NRich logo
menu search
  • Teachers expand_more
    • Early years
    • Primary
    • Secondary
    • Post-16
    • Events
    • Professional development
  • Students expand_more
    • Primary
    • Secondary
    • Post-16
  • Parents expand_more
    • Early Years
    • Primary
    • Secondary
    • Post-16
  • Problem-Solving Schools
  • About NRICH expand_more
    • About us
    • Impact stories
    • Support us
    • Our funders
    • Contact us
  • search

Or search by topic

Number and algebra

  • The Number System and Place Value
  • Calculations and Numerical Methods
  • Fractions, Decimals, Percentages, Ratio and Proportion
  • Properties of Numbers
  • Patterns, Sequences and Structure
  • Algebraic expressions, equations and formulae
  • Coordinates, Functions and Graphs

Geometry and measure

  • Angles, Polygons, and Geometrical Proof
  • 3D Geometry, Shape and Space
  • Measuring and calculating with units
  • Transformations and constructions
  • Pythagoras and Trigonometry
  • Vectors and Matrices

Probability and statistics

  • Handling, Processing and Representing Data
  • Probability

Working mathematically

  • Thinking mathematically
  • Developing positive attitudes
  • Cross-curricular contexts

Advanced mathematics

  • Decision Mathematics and Combinatorics
  • Advanced Probability and Statistics
  • Mechanics
  • Calculus

For younger learners

  • Early Years Foundation Stage

Latin Lilies

Age 7 to 14
Challenge Level Yellow star
  • Problem
  • Teachers' Resources

Why play this game?

Latin Lilies can be used as an introduction to Latin squares. It offers an engaging context in which students are challenged to plan ahead and devise winning strategies.

Possible approach

Introduce the game using the interactivity with you playing against Computer 1 (the default setting). You could choose to play in silence and invite students to watch the game, and consider what the rules might be. Give them a chance to talk to a partner and then draw everyone together to share suggestions and clarify how to play.

Once the rules have been established, invite students to play in pairs against Computer 1 on a tablet or computer. Once they are confident they can beat Computer 1, they can be challenged to take on Computer 2 and then Computer 3.

If students do not have access to a tablet or computer, they could play the game against each other using paper and pencil.

In the plenary, you could ask students to articulate their strategies, perhaps in the context of offering advice to a friend about how to play the game, and/or invite students to test out their strategies by demonstrating they can beat Computer 3 or by playing against the whole class.

Key questions

Which of the five numbers is it best to place at the start?

How many columns are you going to try and win?

Can you ever block your opponent so that they cannot win that column?

Possible support

The task Three by Three will help students focus on the properties of Latin squares.

Possible extension

Tea Cups, Nine Colours and Latin Numbers could all be offered as challenging follow-up tasks.

You may also like

Geoboards

This practical challenge invites you to investigate the different squares you can make on a square geoboard or pegboard.

Polydron

This activity investigates how you might make squares and pentominoes from Polydron.

Multilink Cubes

If you had 36 cubes, what different cuboids could you make?

  • Tech help
  • Accessibility Statement
  • Sign up to our newsletter
  • Twitter X logo

The NRICH Project aims to enrich the mathematical experiences of all learners. To support this aim, members of the NRICH team work in a wide range of capacities, including providing professional development for teachers wishing to embed rich mathematical tasks into everyday classroom practice.

NRICH is part of the family of activities in the Millennium Mathematics Project.

University of Cambridge logo NRICH logo