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