V. Romanchenko's chess is a variant played on a board with broken columns.

Romanchenko used this setup to train his pupils, to make them "think rather than imitate".

Differences from orthodox chess

Inital setup

The only difference with Orthodox chess is the board and the initial setup.

Features

Castling: yes.

"En passant" capture: yes.

Double move for Pawns (start): yes.

Promotion: yes.