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