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