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