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