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