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