Yamajunn's Basic Shogi Opening

Yonteme Hachi-Hachi Kaku nari senpou

Major lines of Yonteme Hachi-Hachi Kakunari senpou

(1)Kaku Koukan Shiken Bisha
(2)direct Mukai Bisha

(diagram 1)

1.P-7f P-3d
2. P-2f Bx8h+
(diagram 1)

The moves shown above is the beginning of Yonteme Hachi-Hachi Kaku nari senpou.

In this opening , Gote exchanges the Bishops inhis 2nd move . And after moves up the left Silver to 3c , decides the Rook's position .

After diagram 1 , Sente must capture the 8h-promoted Bishop with 3.Sx8h (--->diagram 2).

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(diagram 2)

Afterdiagram 1
3.Sx8h S-2b
4.S-4h S-3c
5.K-6h
(diagram 2)

After the Bishop exchange , Gote naturaly advances his left Silver to 3c . Sente starts making his Kakoi with 5.K-6h .

In diagram 2 , major 2 lines and some minor lines exist .

(1) 5...R-4b --->diagram 3
(2) 5...R-2b --->diagram 4

Gote can transpotion the opening toIttezonKakukawariwith following moves .
(3) 5...G-3b
(4) 5...P-8d
(5) 5...S-6b
(6) 5...K-4b

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(diagram 3)

Afterdiagram 2
5...R-4b
6.K-7h K-6b
(diagram 3)

Gote's Rook comes to 4b . The Rook protects 4c-square . And Gote starts making Kakoi .

Kaku koukan Shiken Bisha

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(diagram 4)

Afterdiagram 2
5...R-2b
(diagram 4)

In this line , Gote's Rook comes to 2b without protecting 4c-Square . You may think Sente can make a promoted Bishop by dropping a Bishop on 6e aiming at 4c and 8c squares .

The similar line has first appeared in SATO Yasumitsu's game . This line is so called "direct Mukai Bisha".

Direct Mukai Bisha; P-9c version

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