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