Expert Mastermind 2

Set difficulty 2 to 8 where the difficulty is a matter of how many you have to guess

Guess Colours of hidden tiles
Markers are given once a row is complete
A black marker means you have the right colour in the right place
A white marker means you have the right colour but in the wrong place
No markers means no colour tiles are correct

You keep problem solving until you have all colour tiles in the right place