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