Community variant
Solitaire
custom 8×8 chess variant featuring a unique back-line setup for White that replaces traditional major pieces with specialized fairy chess pieces defined by Betza notation.
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.
Generated rule overview
This variant inherits its base rules from `empire` and overrides the settings shown below.
Board and setup
Pieces and movement
- The piece set used on the board is: King (k), Queen (q), Rook (r), Bishop (b), Knight (n), Pawn (p), Club (c), Heart (h), Spade (s), Diamond (d), Jack (j) and Joker (t).
- Jack (j) is a custom piece with Betza movement `mWcF`.
- Joker (t) is a custom piece with Betza movement `NNAD`.
- Heart (h) is a custom piece with Betza movement `FD`.
- Diamond (d) is a custom piece with Betza movement `WD`.
- Spade (s) is a custom piece with Betza movement `FA`.
- Club (c) is a custom piece with Betza movement `WA`.
Promotion
- The pieces that can promote are: Pawn (p).
- Promotion choices are both sides: Queen (q).
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.
mWcF
NNAD
FD
WD
FA
WA
move
capture
move or capture
initial only
hopper target
Fairy-Stockfish rules
[solitaire:empire]
customPiece1 = j:mWcF
customPiece2 = t:NNAD
customPiece3 = h:FD
customPiece4 = d:WD
customPiece5 = s:FA
customPiece6 = c:WA
startFen = rnbqkbnr/pppppppp/8/8/8/8/PPPPPPPP/SDJQKCHT w kq - 0 1
promotionPawnTypes = p
promotionPieceTypes = q