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