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