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