Your goal is to find the secret four-color code. The following colors are possible: purple, green, red, black, white, blue.
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: ['red', 'blue', 'black', 'green']. Hint: one color is in the correct position and one color is in the secret code but in the wrong position.
Guess: ['purple', 'green', 'black', 'green']. Hint: two colors are in the secret code but in the wrong positions.
Guess: ['red', 'black', 'white', 'purple']. Hint: two colors are in the secret code but in the wrong positions.
Guess: ['black', 'blue', 'purple', 'blue']. Hint: two colors are in the correct positions.
A B C D
purple, blue, purple, blue red, black, blue, white red, black, blue, purple green, blue, purple, white