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