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