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