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