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