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