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