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