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