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