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