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