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