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