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