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