Subway Rook
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Subway Rook vs
Bear-in-the-hole Fourth File Rook
Bear-in-the-hole Fourth File Rook
☖ pieces in hand: –
| 9 | 8 | 7 | 6 | 5 | 4 | 3 | 2 | 1 | |
| 王 | 桂 | 金 | 桂 | 香 | 1 | ||||
| 香 | 銀 | 金 | 飛 | 2 | |||||
| 歩 | 歩 | 歩 | 銀 | 角 | 歩 | 歩 | 3 | ||
| 歩 | 歩 | 歩 | 歩 | 4 | |||||
| 歩 | 歩 | 5 | |||||||
| 歩 | 角 | 歩 | 歩 | 歩 | 6 | ||||
| 歩 | 桂 | 歩 | 歩 | 桂 | 7 | ||||
| 香 | 銀 | 玉 | 金 | 金 | 銀 | 8 | |||
| 飛 | 香 | 9 |
☗ pieces in hand: –
Subway Rook (地下鉄飛車 chikatetsubisha) is an uncommon Static Rook shogi opening with the rook on the bottom rank 9 (or rank 1 for White) that supports an attack on the ninth file.
It may be useful against an opponent playing a Ranging Rook Bear-in-the-hole position.
The name comes from the way the rook moves from second file to the ninth file on the bottom rank as if it were an underground subway.
This bottom rank positioning of the rook is shared by a few other strategies such as the Pinwheel and Right King openings.