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