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