Community variant

Nutty Knights Mirror

Betza's Chess with Different Armies Nutty Knights Mirror match. Both players’ pieces, except Kings and Pawns, are replaced with new ones, illustrated below, always in this order: Rook, then Knight, then Bishop, then Queen replacement. Please read the variant definition.ini definition for detailed rules.

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: Watermelonely
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), pawn (p), custom piece 3 (h), custom piece 1 (g), custom piece 2 (i) and custom piece 4 (o).
custom piece 1 (g) is a custom piece with Betza movement `fsRbK`.
custom piece 2 (i) is a custom piece with Betza movement `FvN`.
custom piece 3 (h) is a custom piece with Betza movement `fhNbKsW`.
custom piece 4 (o) is a custom piece with Betza movement `KfsRfhN`.

Promotion

The pieces that can promote are: pawn (p).
Promotion choices are both sides: custom piece 1 (g), custom piece 2 (i), custom piece 3 (h) and custom piece 4 (o).

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 (G) movement

fsRbK

Custom piece 2 (I) movement

FvN

Custom piece 3 (H) movement

fhNbKsW

Custom piece 4 (O) movement

KfsRfhN

move capture move or capture initial only hopper target

Fairy-Stockfish rules

# Rules are the same as in Chess with the following exceptions: 

# Both players’ pieces, except Kings and Pawns, are replaced with new ones.
# For detailed piece descriptions, please read: https://www.chessvariants.com/unequal.dir/cwda.html

[knightsmirror:chess]
customPiece1 = g:fsRbK
customPiece2 = i:FvN
customPiece3 = h:fhNbKsW
customPiece4 = o:KfsRfhN
promotionPieceTypes = g i h o
castlingRookPieces = g
startFen = gihokhig/pppppppp/8/8/8/8/PPPPPPPP/GIHOKHIG w KQkq - 0 1