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