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