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