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