Your goal is to find the secret four-color code. The following colors are possible: purple, black, green, white, blue, red.
Some guesses have already been made. I will provide feedback for each guess made with which it is possible to unambigiously determine the secret code.

Previous Guesses:
Guess: ['black', 'green', 'purple', 'white']. Hint: one color is in the correct position and two colors are in the secret code but in the wrong position.
Guess: ['purple', 'green', 'blue', 'green']. Hint: two colors are in the correct positions.
Guess: ['black', 'black', 'blue', 'red']. Hint: two colors are in the secret code but in the wrong positions.
Guess: ['purple', 'green', 'black', 'black']. Hint: three colors are in the correct positions.
A B C D
purple, green, red, black purple, red, red, purple purple, red, purple, black white, purple, red, blue