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