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