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