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