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