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