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