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