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