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