Logic Gate Puzzles

Are you a logical thinker?

Try out our online logic gate puzzles to test your knowledge about logic gates and logic circuits.

There are 2 types of puzzles available, which should get you thinking about logic gate functions, their inputs and their outputs.

Theory

What are Logic Gates?

Not sure what logic gates are or how they work? Take a look at the theory behind these puzzles and understand them.

Build the Logic circuit puzzle

Randomised Build the Logic circuit (KS3&KS4)

In this randomised puzzle you are given either a description of a circuit or it’s Truth Table and you must draw out the correct logic gate to match it. Suitable for KS3&KS4 using AND, OR and NOT gates. Click refresh on the page to try a different logic circuit.

Build the Logic circuit Puzzle 1

Can you build the correct logic circuit that fits the truth table that has been given?

Build the Logic circuit Puzzle 2

Can you build the correct logic circuit that fits the truth table that has been given?

Build the Logic circuit Puzzle 3

Can you build the correct logic circuit that fits the truth table that has been given?

Build the Logic circuit Puzzle 4

Can you build the correct logic circuit that fits the truth table that has been given?

Build the Logic circuit Puzzle 5

Can you build the correct logic circuit that fits the truth table that has been given?

Build the Logic circuit Puzzle 6

Can you build the correct logic circuit that fits the truth table that has been given?

Build the Logic circuit Puzzle 7

Can you build the correct logic circuit that fits the truth table that has been given?

Trace the Logic circuit puzzle

Randomised Trace the Logic Circuit Inputs and Outputs

In this puzzle you are given a randomised but fully drawn logic circuit and you must fill in the values for inputs and outputs throughout the circuit.

Trace the Logic circuit Puzzle 1