Community variant
Argess
I didn't invent this variant! See https://www.chessvariants.com/diffsetup.dir/argess.html. Note that this version is not guaranteed to be completely accurate to the rules given on chessvariants.com, but I believe the rules are essentially correctly represented as of the time of writing. The configuration code is from https://github.com/fairy-stockfish/Fairy-Stockfish/blob/master/src/variants.ini, where it is given as an example.
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 `chess` 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) and custom piece 1 (p).
- custom piece 1 (p) is a custom piece with Betza movement `mWcF`.
Move rules
- Castling is not allowed.
Promotion
- Promotions are available in the configured promotion zones. The the promotion region for White is squares g8, h8 and h7 and the promotion region for Black is squares a1, a2 and b1.
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
move
capture
move or capture
initial only
hopper target
Fairy-Stockfish rules
#https://www.chessvariants.com/diffsetup.dir/argess.html
[argess:chess]
pawnTypes = p
customPiece1 = p:mWcF
#yes, black moves first
startFen = rppppnbk/6qb/7n/7p/PPPP3p/RNPP3p/BQNP3p/KBRP3r b 0 1
castling = false
promotionRegionWhite = g8 h8 h7
promotionRegionBlack = a1 a2 b1