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