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