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