Community variant

Torien Shogi

9x9 tori shogi game

This is a user-catalogued casual variant. Technical details such as board size, FEN, pieces, and hand rules are defined in the Fairy-Stockfish variants.ini block below.

Uploaded by: NoPlayers
Visibility: public
Status: active

Generated rule overview

This variant inherits its base rules from `torishogi` and overrides the settings shown below.

Board and setup

Default starting position

Pieces and movement

The piece set used on the board is: king (k), Right Quail (r), Pheasant (p), Crane (c), Falcon (f), Gull (u), Left Quail (l), Thrush (t), Duck (d) and Swallow (s).
Duck (d) is a custom piece with Betza movement `fBbF`.
Thrush (t) is a custom piece with Betza movement `fsRbW`.
Pigeon (i) is a custom piece with Betza movement `BvR`.
Chicken (h) is a custom piece with Betza movement `RbB`.
Gull (u) is a custom piece with Betza movement `WnD`.

Drops and hands

Pieces in hand can be dropped back onto the board. Droppable pieces are: king (k), Right Quail (r), Pheasant (p), Crane (c), Falcon (f), Gull (u), Left Quail (l), Thrush (t), Duck (d) and Swallow (s).

Promotion

Promotions are available in the configured promotion zones. The the promotion region for White is all the ranks from 7 to 9 and the promotion region for Black is all the ranks from 1 to 3.
The pieces that can promote are: Pheasant (p), Duck (d), Thrush (t), Swallow (s) and Falcon (f).
Fixed promotion mappings: p promotes to c, d promotes to i and t promotes to h.

Piece movement

These diagrams show custom pieces and known Fairy-Stockfish built-in fairy pieces from White's perspective on a compact preview board. Some special moves, especially hoppers and game-state-dependent moves, can still depend on blockers or game state.

Duck (D) movement

fBbF

Thrush (T) movement

fsRbW

Pigeon (I) movement

BvR

Chicken (H) movement

RbB

Gull (U) movement

WnD

move capture move or capture initial only hopper target

Fairy-Stockfish rules

[torienshogi2:torishogi]
# pychessPieces = s,+s,p,l,r,c,+p,f,+f,d,t,+d,+t,u,k
maxFile = 9
maxRank = 9
customPiece8 = d:fBbF
customPiece9 = t:fsRbW
customPiece10 = i:BvR
customPiece11 = h:RbB
customPiece12 = u:WnD
promotedPieceType = p:c d:i t:h
mandatoryPiecePromotion = false
promotionRegionWhite = *7 *8 *9
promotionRegionBlack = *1 *2 *3
startFen = rpuckcupl/1t2f2d1/sssssssss/9/3s1S3/9/SSSSSSSSS/1D2F2T1/LPUCKCUPR[-] w - - 0 1