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