How to Play Correspondence Chess: Mail, Email & Server Play Guide

You're likely referring to Correspondence Chess (historically "Chess by Post"), not a variant called "Train Chess." Here's how it works:

Finding a Game

• Dedicated Servers: ICCF (official), Chess.com, Lichess, FICGS, SchemingMind – handle pairing, move validation, time controls, and ratings.
• Clubs/Orgs: National federations often run correspondence tournaments.
• Private Play: Email, messaging apps, or physical postcards with a friend.

Gameplay Mechanics

• Turn-Based, Asynchronous: Days/weeks per move. Typical time control: 30–60 days per 10 moves.
• Notation: Standard Algebraic Notation (e.g., 1. e4 e5 2. Nf3 Nc6).
• Engine Use: Varies by platform. ICCF allows engines; Chess.com/Lichess correspondence forbid engine assistance (treated as cheating). Always check the rules.
• Duration: Games last weeks to years.

Pros & Cons

Getting Started

Create a free account on Chess.com or Lichess, select "Correspondence" or "Daily" time control, and start a game. No special equipment needed.