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