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