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