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