Logic

  • crossing the bridge
    problem
    Favourite

    Crossing the Bridge

    Age
    11 to 18
    Challenge level
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    Four friends must cross a bridge. How can they all cross it in just 17 minutes?

  • Circular circuitry
    problem
    Favourite

    Circular Circuitry

    Age
    16 to 18
    Challenge level
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    What will happen when you switch on these circular circuits?
  • Tom learns to cook
    problem

    Tom Learns to Cook

    Age
    7 to 11
    Challenge level
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    If Tom wants to learn to cook his favourite supper, he needs to make a schedule so that everything is ready at the same time.
  • Colouring curves game
    game

    Colouring Curves Game

    Age
    7 to 14
    Challenge level
    filled star empty star empty star
    In this game, try not to colour two adjacent regions the same colour. Can you work out a strategy?
  • flow chart
    problem

    Flow Chart

    Age
    11 to 14
    Challenge level
    filled star empty star empty star

    The flow chart requires two numbers, M and N. Select several values for M and try to establish what the flow chart does.

  • Coins
    problem

    Coins

    Age
    11 to 14
    Challenge level
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    A man has 5 coins in his pocket. Given the clues, can you work out what the coins are?

  • Not another NAND!
    problem

    Not Another NAND!

    Age
    14 to 18
    Challenge level
    filled star filled star empty star

    Prove that you can make any type of logic gate using just NAND gates.

  • Procedure solver
    problem

    Procedure Solver

    Age
    16 to 18
    Challenge level
    filled star empty star empty star

    Can you think like a computer and work out what this flow diagram does?

  • NOTty logic
    problem

    NOTty Logic

    Age
    16 to 18
    Challenge level
    filled star empty star empty star

    Have a go at being mathematically negative, by negating these statements.