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