The 4th game of 20th Ryuo-sen seven-wins match between Ryuo Watanabe and Challenger Sato on November 21 & 22. The Sente player of this game is Watabane. Watanabe won it in 101 moves. The score after the game is 3-1 led by Watanabe.
The diagram above is the resignation diagram. After the diagram, Gote's King would be mated as below;
K-8b G*7c K-7a N*6c K-6a G*6b(mate)
K-7d G*6e K-8d G*7e(mate)
K-8d N*7f K-7e G*6e K-8f Sx8g Kx8g G-7h K-7f G*8g(mate)
K-8d N*7f K-7e G*6e Kx7f Sx8g Kx7g G-7h(mate)
K-8d N*7f K-7e G*6e Kx7f Sx8g K-6g G-6h(mate)
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