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