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