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