Shogi no Watanabe-kun

Professional shogi players are representatives of humanity! They make a living by playing shogi. They study diligently, play about 50 matches a year, and if they win, they laugh; if they lose, it's their own fault. It's a world dominated solely by wins and losses, much like a microcosm of life. What kind of people are shogi players? What do they eat, and how many hours do they sleep?