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