Your goal is to find the secret four-color code. The following colors are possible: purple, brown, blue, pink, green, red.
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: ['blue', 'red', 'brown', 'purple']. Hint: two colors are in the correct positions.
Guess: ['purple', 'purple', 'brown', 'brown']. Hint: none of the guessed colors are present in the secret code.
Guess: ['pink', 'pink', 'blue', 'blue']. Hint: two colors are in the secret code but in the wrong positions.
Guess: ['blue', 'red', 'pink', 'green']. Hint: two colors are in the correct positions and two colors are in the secret code but in the wrong positions.
A B C D
blue, red, green, pink blue, red, pink, red brown, pink, brown, pink red, brown, green, green