Community variant

Atomic Cabalbanca

Capablanca Atomic Chess that combines the Capablanca Chess and Atomic Chess. To balance the intense tactical gameplay, all pawns start advanced one square forward.

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: Chesstester
Visibility: public
Status: active

Generated rule overview

This variant inherits its base rules from `atomic` 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 1 (a) and custom piece 2 (c).
custom piece 1 (a) is a custom piece with Betza movement `NB`.
custom piece 2 (c) is a custom piece with Betza movement `NR`.

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 (A) movement

NB

Custom piece 2 (C) movement

NR

move capture move or capture initial only hopper target

Fairy-Stockfish rules

[atomiccapashift2026:atomic]
maxFile = 10
maxRank = 8
customPiece1 = a:NB
customPiece2 = c:NR
startFen = rnbakqcbnr/10/pppppppppp/10/10/PPPPPPPPPP/10/RNBAKQCBNR w - - 0 1