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