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