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