On August 8 & 9, the 4th game of 47th Oui-sen between Oui Habu and Challenger Koichi Fukaura(8 dan) was held in Fukuoka prefecture. Fukaura was Sente player and won the game in 125 moves. The score is 3-1 led by Fukaura after the game.
The diagram above is the resignation diagram when Fukaura moves his promoted Rook to 6b. After the diagram, Gote's King will be mated immediately as followings;
P*6c G*5e K-7d Gx6e Kx6e +Rx6c P*6d B*7d(mate, replayable by clicking the arrow in the right direction under the diagram)
K-5d G*4d(mate)
K-7d G*6d K-8d +R-7c Kx9e S-8f(mate)
K-7d G*6d K-8c Nx7e K-8d +R-7c Kx9e S-8f(mate)
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