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