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