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