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King's Pawn Game · II. Semi-Open Game

Alekhine's Defense

The Alekhine's Defense epitomizes the style of hypermodern chess: Black will allow White to establish a formidable center by chasing the f6 knight around, hoping to later prove that White has overextended their pawns.

Side
black

Characteristics

  • ✨ HypermodernAllows the opponent central space early, then aims to undermine that center with piece pressure.
  • ⚔ TacticalSharp opening that creates concrete positions with immediate tactical demands.
  • ⏳ TheoreticalNeeds concrete preparation, but not necessarily the extreme depth of the heaviest theory openings.
  • 💎 UncommonLess common in practice, which can reduce opponent familiarity.
  • 🍂 Very AttainableAppears extremely often relative to other openings, so practice opportunities are abundant.

Strategic guide

Plans and motifs

  • After White has played Nf3, Black usually follows with the pin Bg4, temporarily immobilizing the piece responsible for defending White's center pawns on d4 and e5.
  • The pawn push c4 is often a committal move for White, who may want to put a bishop on c4 instead.
  • Black may get in serious trouble early on if White knows more theory.
  • For example, White can quickly assemble a dangerous attack on f7 with moves such as Bc4, Nf3-Ng4, Qf3, and the pawn advance to e6.

Theory map

Common lines

  • After main line 2.e5 Nd5 3.d4 d6:
  • After 4.c4 Nb6:
  • 5.exd6 — Exchange Variation
  • 5.f4 — Four Pawns Attack
  • 4.Nf3 — Modern Variation