Community variant

Minihouse Chess

A fast-paced, highly tactical adaptation of the popular Chess.com variant. Played on a compact 6x6 board, you command a specialized micro-army containing just a King, Rook, Knight, Bishop, and a single Pawn.

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: Hailstorm
Visibility: public
Status: active

Generated rule overview

This variant inherits its base rules from `crazyhouse` 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), rook (r), bishop (b), knight (n) and pawn (p).

Move rules

Pawn double-step moves are disabled.

Promotion

Promotions are available in the configured promotion zones. The the promotion region for White is all squares on rank 6.
The pieces that can promote are: pawn (p).
Promotion choices are both sides: knight (n), bishop (b) and rook (r).

Fairy-Stockfish rules

[minihouse2:crazyhouse]
# Set the official chess.com 6x6 board dimensions
maxRank = 6
maxFile = 6

# The exact starting position used on chess.com
# White starts with an aggressive King, Rook, Knight, Bishop, and Pawn structure
startFen = 2bnrk/5p/6/6/P5/KRNB2 w - - 0 1

# Disable the initial 2-square pawn jump (pawns only move 1 square at a time)
doubleStep = false

# In a 6x6 space, pawns promote immediately upon reaching the 6th rank
promotionRegionWhite = *6

# Pawns can only promote to Knights, Bishops, or Rooks (No Queens)
promotionPieceTypes = nbr