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