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