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