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