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