Theoria
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Queen's Indian Defense

Kasparov-Petrosian Variation, Andersson Variation

E12solidpositional

  1. 1.d4Nf6
  2. 2.c4e6
  3. 3.Nf3b6
  4. 4.a3Bb7
  5. 5.Nc3Ne4
265 games43%51%

Queen's Indian line where Black answers 4. a3 and 5. Nc3 with 5...Ne4, challenging the c3-knight at once and contesting e4 with pieces rather than pawns.

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About the Andersson Variation

With 5...Ne4 Black meets the Kasparov-Petrosian setup by occupying e4 before White can prepare e2-e4, offering to trade the c3-knight and easing the pressure on the center without committing a pawn to d5. White's main replies are 6. Qc2, challenging the outpost, and 6. Nxe4, after which Black recaptures with the bishop. Engines rate the position as close to balanced, and Black has scored well in the database.

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