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