Meridian

A quiet board

Every rule.
Every move.

Castling, en passant, promotion, pins, and mate — played correctly, against a machine or across the table.

The set

Ivory and ebony

1 king · 1 queen · 2 rooks · 2 bishops · 2 knights · 8 pawns

Ivory

PawnPawnPawnPawnPawnPawnPawnPawn
RookKnightBishopQueenKingBishopKnightRook

Ebony

RookKnightBishopQueenKingBishopKnightRook
PawnPawnPawnPawnPawnPawnPawnPawn

Versus the machine

You play one color. The engine answers with full rules, including the rare ones.

Sit down

Castling

King and rook in one motion — never through check.

En passant

A two-step pawn can still be taken on the square it skipped.

Promotion

Queens, or the knight that actually wins.