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