Sugar is a Japanese shogi YouTuber who explains opening strategies and practical ways to approach the game. His videos include the “Kami Kenkyu” series, which introduces systems that viewers can incorporate into their own play. He devised the “Henachoko Kyusen,” a rapid-attack strategy for Static Rook players facing Ranging Rook openings. The system keeps defensive preparations compact and uses coordinated bishop and knight attacks to create opportunities for a breakthrough. Presenting this approach systematically, his first book, “Ichigeki! Tai-Furibisha Henachoko Kyusen,” published in 2024, is a guide to rapid attacks against Ranging Rook. It begins with the basic formation and attacking ideas before addressing Third-File Rook, Fourth-File Rook, Central Rook and Opposing Rook setups. A Boat Castle limits the moves spent on king protection, allowing the player to prepare an early attack. The book organizes its variations around a shared starting structure, helping amateur players connect individual moves with their strategic purpose. Across his videos and writing, Sugar focuses on explaining where pieces should go, how they work together and when to launch an attack.
