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