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