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