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