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