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