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