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