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