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