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