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