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