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