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