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