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