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