How to Enjoy the 棋王戦 Championship: A Complete Guide The 棋王戦 (Kiou-sen) Championship is an annual professional shogi tournament held in Japan. It attracts shogi enthusiasts from all over the world who gather to witness the battle of the finest players in the game. If you are interested in attending this prestigious event and want to make the most out of your experience, this comprehensive guide will provide you with all the necessary information.