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