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