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