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