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