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