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