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