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 Yagura is one of the most interesting foramtion in the shogi . I love this formation , and many professional shogi players love Yagura too . Yagrua is developed as several generation . First I show the changes of fashion . Chapter 1. Yagura evolution At first I show a Yagura of Oayama's young days. There are some features in Oayama's Yagura . First , both Black & White move Static Rook's Pawn in early stage . Second , both move 5th file Pawn afterward , or sometimes move 4th (6th as White ) file Pawn instead of 5th file Pawn . 1. P-7f P-8d 2. S-6h P-3d 3. S-7g S-6b 4. P-2f S-4b 5. S-4h G-3b 6. G-7h P-6d 7. P-5f S-6c 8. K-6i K-4a 9. P-2e S-3c 10. P-3f G-5b 11. G-5h S-5d 12. S-3g P-4d (diagram 3-1-1)  Diagram 3-1-1 is a typical example of Oyama's Yagura . Section 2 . Yagura nijuyonte-gumi ( Yagura 12 moves formation ) This style is used long time before Hisya-saki-futsuki Yagura appears . There is many fmous Yagura players in this age , Makoto Nakahara , Kunio Yonenaga , Hifumi Katou , Michio Ariyoshi , Tatsuya Futakami , etc . 1. P-7f P-8d 2. S-6h P-3d 3. S-7g S-6b 4. P-2f S-4b 5. S-4h G-3b 6. G-7h P-5d 7. P-5f K-4a 8. K-6i G-5b 9. P-3f P-4d 10. G-5h S-3c 11. B-7i B-3a 12. P-6f P-7d (diagram 3-1-2)  Diagram 3-1-2 is the formation of " Yagura nijuyonte-gumi . Section 3. Hisha-saki-futsuki Yagura ( Yagura without P-2f ) saki-futsuki Yagura in their young days . And now almost all (although Hifumi Katou is an exception) Yagura Players use Hisha-saki-futsuki Yagura . Standard Hisha-saki-futsuki Yagura 1. P-7f P-8d 2. S-6h P-3d 3. S-7g S-6b 4. P-5f P-5d 5. S-4h S-4b 6. G-(4i)5h G-3b 7. P-6f K-4a 8. G-6g P-7d 9. G-7h G-5b 10. K-6i S-3c 11. B-7i B-3a 12. P-3f P-4d (diagram 3-1-3 )  The moves showed above is relatively old today . Some variations which White attacks center is very effective against Black's Yagura foramtion with 3.S77 . Then many Yagura players selects another moves for using Yagura . Modern Hisha-saki-futsuki Yagura 1. P-7f P-8d 2. S-6h P-3d 3. P-6f S-6b 4. P-5f P-5d 5. S-4h S-4b 6. G-(4i)5h G-3b 7. G-7h K-4a 8. K-6i P-7d 9. G-(5h)6g G-5b 10. S-7g S-3c 11. B-7i B-3a 12. P-3f P-4d (same as diagram 3-1-3) Standard Hisha-saki-futsuki Yagura If Black wants to play Yagura , the game usually started with the moves 1. P-7f P-8d 2. S-6h (diagram 3-2-1). Yagura is relatively difficult to avoid for White . If White wants to avoid Yagura , he(or she) should move 1. . . P-3d and transposition to Yokofutori , Gote Furibisha or other openings . After 2. S-6h White can still avoid Yagura , but the opening of White is limited , for example Youdou-Furibisha , Sokkou-bougin , Migi-shiken-bisha , Kyuusen-Yagura .  After diagram 3-2-1 , White usually moves 2. . . P-3d , because 2. . . P-8e is too early to limit his (or her ) own shape if he (or she ) dose't play quick attack . After the diagram 3-2-1
(iii) Transposition to irregular Kakukawari . (iv) Transposition to Modern Hisha-saki-futsuki , Naka-bisha etc. After diagram3-2-2
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