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