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