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