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