Fukaura won the 4th game - 49th Oui-sen 4-win match

On August 6 and 7, the 4th game of 49th Oui-sen 4-win match between Oui Fukaura and Challenger Yoshiharu Habu took place at Banshoro in Nagasaki prefecture. Fukaura was Sente player and won the game in 123 moves. After the game, Fukaura leads the score in 3-1. From my point of view, this was a very unusual and strange game since Habu dropped a pawn only once in the game and Fukaura did not made any pawn move after 65th move and did not take any pawn after 55th move.

The diagram below is the resignation one when Sente dropped Lance on 4c. The mating lines after that would be as followings;

K-5b G*6b(mate)

P*4b Lx4b+ Kx4b S*4c K-3a G*3b(mate)

K-3a G*3b K-2b +L-1b(mate, replayable by clicking the arrow to the right direction)

In any case, Gote''s King would be mated