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