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