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