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