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