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