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