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