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