Lesson 1 of 2 · Openings

Opening Principles & Two Systems to Trust

You don't need 20 moves of memorised theory. You need four principles and one reliable setup for White, one for Black. That's enough to stop losing games in the first ten moves.

Why this matters for you: rust shows up hardest in the opening — you either freeze, or you play something you half‑remember and walk into trouble by move 8. A small, principle-based repertoire fixes that immediately.

The four principles

Every good opening move — in any opening — is doing at least one of these:

  1. Control the centre. Pawns or pieces bearing on d4/d5/e4/e5. The centre is where mobility comes from.
  2. Develop with a purpose. Get knights and bishops out before move 10, each to a square that does something — not just "off the back rank."
  3. King safety. Castle by around move 8–10 unless you have a concrete reason not to.
  4. Don't move the same piece twice (in the opening) without a real reason. Every extra tempo you spend is a tempo your opponent gets for free.
Rust check: the single most common mistake for returning players is grabbing a pawn early and ignoring development to defend it. If a pawn grab costs you 3+ tempi, it usually isn't worth it below master level.

One White system: the London System

A setup-based opening — you play roughly the same structure regardless of what Black does, so there's very little to memorise. That's exactly what you want while rebuilding.

Typical London setup for White — bishop out to f4/g3 before e3, pawns d4/c3/e3, knights to f3 and d2, castle short.

The moves, in order, regardless of Black's replies:

1. d4 2. Nf3 3. Bf4 4. e3 5. Bd3 (or Be2) 6. Nbd2 7. O-O 8. c3

That's it. You play roughly this shape against almost anything Black tries. The one thing to watch for: if Black plays an early ...Qb6 hitting your b2 pawn, respond with Qb3 or Qc1 rather than panicking — it's a known idea, not a refutation.

One Black defence: the Caro-Kann

Solid, low-theory, and forgiving of imprecision — good qualities for a defence you're relearning.

1. e4 c6 2. d4 d5 3. (Nc3 or Nd2 or e5) — meet with ...dxe4 (open lines) or ...Bf5 (Advance line) and develop naturally: Nf3-derived knight, e6, Be7/Bd6, O-O.

The idea, not the moves: Caro-Kann gives Black a solid pawn structure with no early weaknesses, and the light-squared bishop gets out before ...e6 locks it in — the exact mistake the French Defence tempts you into. If you forget the exact move order, just remember: solid centre, bishop out first, then castle.

Quick check

You're playing White with the London setup. Black plays an early ...Qb6 attacking b2. What's the calm response?

Reference

See Openings Cheat Sheet for the London and Caro-Kann move orders plus the four principles, formatted for quick review before a game.

Go deeper

Primary source: Chess.com — "Openings Resources for Beginners and Beyond" by Russ Bell. This curates free explainer content that focuses on the ideas behind opening moves rather than raw memorisation, which matches how this lesson is built.

Something unclear, or want a different opening because the London/Caro-Kann don't suit your style? Ask your agent — it's your teacher for this course and can adjust the repertoire to fit you.