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