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