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

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

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.

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

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

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

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

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

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

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

## Trace the Logic circuit puzzle

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.

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

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

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