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