Berolina
Pawns advance diagonally and capture straight ahead.
Every pawn instinct is inverted: your chains point the other way and passed pawns are made on diagonals. Doubled pawns become strong and isolated pawns become common.
What changes
The board does not start the way standard chess does.
Standard chess: Classical chess. Checkmate the king.
1 augments run on this rule
- Berolina Pawns advance diagonally and capture straight ahead.