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