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