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