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