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