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Grünfeld Defense

Give up the center, then tear it down: pure hypermodernism with 1...Nf6 and 3...d5

6 Chapters · 26 exercises

Origin

The defense is named after the Austrian Ernst Grünfeld, who played it against Alekhine in Vienna in 1922, when handing the center to the opponent still sounded heretical. Smyslov and Botvinnik folded it into the Soviet repertoire, and Fischer used it in critical games. Kasparov made it a central weapon in his matches with Karpov, and Svidler has defended it at the top level for decades.

Why it works

After 1.d4 Nf6 2.c4 g6 3.Nc3 d5, Black invites 4.cxd5 Nxd5 5.e4 Nxc3 6.bxc3, handing White a big pawn center on c3, d4 and e4 — and then immediately shoots at it with c5, Bg7, Nc6 and Qa5 or Bg4. The g7 bishop is no ornament: it eyes the long diagonal precisely where White's center will crack. If White gets in d4-d5 and holds the pawns, he keeps a space edge; if the center falls, the c3 pawn becomes a permanent weakness and endgames favor Black. It is a defense of concrete counterattack, with recurring structures that reward understanding the plan rather than memorizing loose moves.

In its favour

  • +Black gets a clear plan from move three: pressure d4 with c5, Bg7 and Nc6 instead of waiting.
  • +White's c3 pawn often becomes a long-term weakness, giving Black a good endgame in many lines.
  • +The structures repeat, so study effort converts into understanding that transfers across variations.
  • +It is a fighting answer to 1.d4 that plays for a win without risky gambit lines.

The price

  • −The theory is dense: the Exchange, the Russian System and the Bf4 lines demand concrete knowledge, not just principles.
  • −If White's center is not attacked in time, d4-d5 cramps Black and the g7 bishop bites on granite.
  • −Black spends several moves before getting queen and rooks into play; a move-order slip can cost the game early.
  • −The black king sits behind a fianchetto that often has to survive direct h4-h5 attacks.

Chapters

  1. 1The Opening Moves and Why They ExistHere you see the backbone: 1.d4 Nf6 2.c4 g6 3.Nc3 d5 and White's three most common replies — capturing on d5, fianchettoing with g3, or entering via 1.Nf3. The goal is to grasp the basic trade: Black concedes space in order to attack the center afterwards.0/4
  2. 2Quiet Systems and the c6 SetupNot every White player enters the theoretical brawl: 4.Bf4, 5.e3 and 5.Bd2 aim for solid positions without the big center. You learn to react with fast development and a well-timed break, and also see the structure where Black supports d5 with c6.0/4
  3. 3The Exchange Variation — Heart of the GrünfeldAfter 4.cxd5 Nxd5 5.e4 Nxc3 6.bxc3 comes the structure that defines the opening: White's c3-d4-e4 center against c5, Bg7 and pressure on d4. This covers the setups with 7.Bc4, 7.Be3, 7.Nf3 and 8.Rb1, plus the gambit line with Bd2.0/6
  4. 4The Russian System (5.Qb3)With 5.Qb3 White regains the c4 pawn with the queen and builds an imposing center. You study the classical answers — 7...Bg4 pressuring d4, Smyslov's 7...Na6 and the modern ...a6 plan — and learn when to trade pieces and when to strike with ...c5.0/5
  5. 5Bf4, Bg5, Early Qb3 and the FianchettoWhite can also dodge the exchange: develop the bishop to f4 or g5, play an early 4.Qb3, or fianchetto with 5.g3. Each changes the nature of the position, and here you nail down the right answer to each attempt, including the aggressive Bf4 and e3 setup.0/5
  6. 6Modern Exchange and the Seville LineThe most demanding material in the course: the Modern Exchange, where White delays the knight's development to reinforce the center, and the Ne2 line made famous in the Kasparov–Karpov Seville match. These are long variations where a single move out of order changes the assessment.0/2
Keep training →Play this opening against the computer from its main line, with the best moves on hand when you need them.