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