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