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