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