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