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