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