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