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