This is a Mastermind game. You can click on the colour you want from the palette. And then use it to fill in the empty spaces. The first try is the top and the last try is at the bottom. The white pegs is for the pegs that you match with the answer but it is at the wrong place. The red pegs is for the pegs that you match with the answer and it is at the right place. Some Mastermind games might have used the black peg instead of the red pegs. There will be no duplicates for the answers. Please report any bugs or improvements in the comments below.