"Aha! That's it," you exclaim, still holding the papers. "The answer is obviously [redacted]."
Having figured out the answer, you start looking over the rather bare-looking desk, still swiveling in the chair. Then, behind you, you hear a click. You stiffen. Slowly, you turn around, thinking uh-oh. Before you get all the way around, though, there's a loud SNAP and the legs on your chair snap.
You tumble on the floor, dropping the papers, covering your head with your hands. When nothing happens, you slowly stand up, looking all over the room. You don't see what may have made that click, but you do see that there is something on the ceiling.
You stand up and crane your neck. Squinting, you struggle to make it out. It appears to be a Sudoku board, along with four chess board. An odd combination, you think. Scanning the ceiling, you see a line of what appears to be instructions on the right:
What does chess have to do with sudoku? You'll see. Solve the sudoku, and then figure out what makes each chess board so... unique, let's say. I daresay that'll be impossibly, essentially. Can you figure out what you have to do after that? Good luck, Clue hunter.
Here are the chess boards and sudoku board: