Quick answer: A shogi castle is a defensive structure made by moving the King, Golds, and Silvers over several turns. Choose it to fit your Rook position and the opponent’s attack, rather than treating one castle as universally best.
Best for: Beginners who know the pieces and want to choose a practical King structure for a real opening.
In This Lesson
- Match Mino and Anaguma with common ranging-Rook plans.
- Compare Boat and Yagura structures for static-Rook positions.
- Read four authentic Japanese-piece reference boards.
- Choose a structure by speed, safety, and likely attack direction.
Castle Comparison at a Glance
| Castle | Common fit | Main strength | Main caution |
|---|---|---|---|
| Mino | Ranging Rook | Fast, compact side defense | Watch attacks from above and edge pressure |
| Anaguma | Static or Ranging Rook | King is hard to check directly | Slow construction and few escape squares |
| Boat | Static Rook vs Ranging Rook | Quick to assemble | Usually a temporary structure, not a final fortress |
| Yagura | Double Static Rook | Strong coordinated defense against frontal play | Move order and current position matter |
Chess difference: shogi has no castling move. Every square in a castle must be reached by an ordinary legal move, and captured attackers can return as drops.
A shogi castle is a coordinated King-and-generals structure. It is built through ordinary moves; unlike chess castling, there is no special one-move rule. This guide uses Sente coordinates with Sente at the bottom.
Why Castle Choice Depends on the Opening
King safety matters because captured pieces can return as drops, but “finish the castle before attacking” is not an absolute rule. A quiet position may grant time for a deep structure. A forcing position may require a compact castle, immediate defense, or an attack before full construction.
Ranging-Rook Castles
Mino
A basic Sente Mino reference uses King 2h, Silver 3h, and Gold 4i. It is efficient and commonly paired with a Rook moved to the left side.
Study the verified Mino guide, then compare High Mino and Silver Crown.
Ranging-Rook Anaguma
A common Sente reference places the King on 1i after the Lance leaves that square, with Silver 2h and Gold 3h. It can make checks difficult to create, but construction is slow and the corner King may have few escape squares.
Static Rook Against Ranging Rook
Boat Castle
Boat Castle is a flexible starting structure, commonly with King 7h and the right Gold on 5h. From there, Static Rook may attack quickly or develop into Left Mino, Anaguma, or another system.
Study Boat Castle or compare Left Mino.
Double Static Rook
Yagura
A standard Sente reference has King 8h, Golds 7h and 6g, and Silver 7g. Yagura is a family of positions with move-order requirements, not a castle to complete automatically against every early attack.
A Practical Selection Checklist
- Identify whether the game is Double Static Rook, Static Rook versus Ranging Rook, or Double Ranging Rook.
- Check open Bishop diagonals and the opponent’s first forcing Pawn break.
- Choose the minimum King safety needed before your own plan becomes urgent.
- Recalculate during construction; a familiar final diagram does not justify an unsafe move order.
Use the Japan Shogi Association castle series as a primary Japanese reference, then use the English guides here for consistent coordinates and terminology.
