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