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