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