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