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