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