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