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