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