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