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