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