Community variant

Nocturnal Chess 65536

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: neroidtotale
Visibility: public
Status: active

Generated rule overview

This variant inherits its base rules from `chess` 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), queen (q), rook (r), bishop (b), knight (n), pawn (p), custom piece 4 (a), cannon (c), custom piece 3 (m), custom piece 1 (z) and custom piece 2 (d).
custom piece 1 (z) is a custom piece with Betza movement `QNN`.
custom piece 2 (d) is a custom piece with Betza movement `D`.
custom piece 3 (m) is a custom piece with Betza movement `K`.
custom piece 4 (a) is a custom piece with Betza movement `BN`.

Promotion

The pieces that can promote are: pawn (p).
Promotion choices are both sides: knight (n), bishop (b), rook (r) and 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.

Custom piece 1 (Z) movement

QNN

Custom piece 2 (D) movement

D

Custom piece 3 (M) movement

K

Custom piece 4 (A) movement

BN

move capture move or capture initial only hopper target

Fairy-Stockfish rules

[nightchess5:chess]

# Queen of the Night = Queen + Nightrider
customPiece1 = z:QNN

# Dabbaba = (2,0) leaper
customPiece2 = d:D

# Mann / Clown = non-royal King movement
customPiece3 = m:K

# Archbishop = Bishop + Knight
customPiece4 = a:BN

# Xiangqi cannon
cannon = c

# Standard pieces + cannon + our four custom pieces.
pieceToCharTable = .PNBRQ.....................C.........ZDMA......................K.pnbrq.....................c.........zdma......................k

# White normal chess army.
# Black: Cannon, Mann, QNN, King, Archbishop + 5 Dabbabas.
startFen = 1cmzka2/1ddddd2/8/8/8/8/PPPPPPPP/RNBQKBNR w KQ - 0 1

promotionPieceTypes = nbrq