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