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