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