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