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