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