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