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