On February 7 & 8, the 4th game of 56th Osho sen between Osho Habu and Challenger Kisei Sato was held in Oita prefecture, Japan. Habu won the game in 123 moves. Habu led the score by 3-1 with this victory. You may replay the game here.
The diagram above is the reginaition diagram when Habu moved his King from 7g to 8g in response to Sato's checking drop of N*6e. It's difficult for me to understand why Sato resigned the game without dropping his bishop on 6f in the diagram. Anyway, here might be the possible variations after the diagram.
B*6f N*8i Bx9i+ N*8e S*7g S*9c Lx9c Nx7c+ Nx7c +Px7b Kx7b S*6c K-8b G*7b K-9b G*8b(mate)
B*6f N*8i Bx9i+ N*8e S*7g S*9c Lx9c Nx7c+ Gx7c S*7a Kx7a +B-6a Kx6a G*6b(mate)
B*6f N*8i Bx9i+ N*8e S*7g S*9c Lx9c Nx7c+ Gx7c S*7a Kx7a +B-6a K-8b G*7b Gx7b +Bx7b K-9b G*8b(mate)
B*6f N*8i G7cx6c +Sx6c Gx6c +Bx6e Bx9i+ N*7e S*9h K-7h +Bx8i K-6i S*7d Nx6c+ Sx6c G*6b N*7a N*7e L*6d Nx8c+ Nx8c S*7a K-9c S*8b K-9b Sx8a= K-9c N*8e K-8f G*7e(mate, replayable in the diagram by clicking the arrow in the right direction)
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