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