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