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