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