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