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