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