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