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