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