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