Community variant

Vertical breakthrough

Chess but the tactics are vertical !

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: Rom142857
Visibility: public
Status: active

Generated rule overview

This variant is defined directly from a Fairy-Stockfish rule block. The text below is generated from the available configuration and may omit details that are only implicit in piece movement notation.

Board and setup

Default starting position

Pieces and movement

The piece set used on the board is: king (k), rook (r) and custom piece 1 (p).
custom piece 1 (p) is a custom piece with Betza movement `fWmnfDm`.
The royal piece king (k) uses custom Betza movement `W`.

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 (P) movement

fWmnfDm

Custom king (K) movement

W

move capture move or capture initial only hopper target

Fairy-Stockfish rules

[verticalbreakthrough]
customPiece1 = p:fWmnfDm
rook = r
king = k:W
startFen=rrrrrrrr/pppppppp/4k3/8/8/4K3/PPPPPPPP/RRRRRRRR w