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