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