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