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