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