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