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