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