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