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