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