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