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