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