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