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Queen's Indian Defence: 1.d4 Nf6 2.c4......... 7.Nc3
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Queen's Indian Defence: 1.d4 Nf6 2.c4......... 7.Nc3
Queen's Indian Defence: 1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.g3 Bb7 5.Bg2 Be7 6.0-0 0-0 7.Nc3
E18, 410,256 games on record
TL;DR
Nc3 pins the knight but waits for Black's central reaction. Black can either
- Trade pieces with ...Ne4, or
- Build an attack with ...d5, ...c5
Reviewed by
IM John Bartholomew – Co-Founder & Chess Educator
- Co-founder of Chessable
- Founding member of Chessiverse
- Author of Climbing the Rating Ladder YouTube series
- Focuses on structured openings and chess pedagogy
Summary
This line from the Queen’s Indian Defence opens with: 1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.g3 Bb7 5.Bg2 Be7 6.0-0 0-0 7.Nc3.
Key Themes
- Hypermodern control –square control more important than central pawns
- Strategy spotlighted in every branch after 9.Qxc3
History & Notable Players
Most Prolific Practitioners
| White | Games |
|---|---|
| Borislav Ivkov | 53 |
| Ulf Andersson | 45 |
| Ivan Farago | 39 |
| Black | Games |
|---|---|
| Eduardas Rozentalis | 61 |
| Anatoly Karpov | 54 |
| Sergei Tiviakov | 47 |
Performance by Rating Level
White advantage lessens as Black’s counterplay becomes easier to find.
| Rating Bracket | Games* | White Wins | Black Wins | Draws | Sharpness |
|---|---|---|---|---|---|
| 1200 | 1,931 | 52.7% | 43.7% | 3.7% | 0.963 |
| 1800 | 73,965 | 49.7% | 44.4% | 6.0% | 0.940 |
| 2500+ | 13,263 | 48.9% | 38.4% | 12.7% | 0.873 |
*Share of total games at each level: ≤0.1%.
Key insights:
- White’s edge shrinks by 3.8pp from 1200 → 2500.
- Draw rates spike at 2500+, showing greater theory depth.
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Time Control Patterns
Sharpness Varies by Speed
| Format | Total Games* | White Wins | Draw % | Sharpness** |
|---|---|---|---|---|
| Bullet | 246K | 50.3% | 5.2% | 0.948 |
| Blitz | 373K | 48.8% | 7.7% | 0.923 |
| Rapid | 36.9K | 48.4% | 9.1% | 0.909 |
**: Share of total games:blitz/rapid all) **Sharpness rating: ≥1=active, <0.8=implies drawn out middlegame
Move Diversity & Theory Depth
At 1200 Elo, top reply is +d5 (28.3%) with 63.6% staying in theory.
| Rating | Theory Adherence | Entropy | Key Movements |
|---|---|---|---|
| 400 Elo | 58.5% | 3.06 | d5 (32.1%) → 6 viable moves |
| 2500+ | 92.2% | 1.39 | Ne4 (72.7%) → only 2 top moves |
What entropy tells you: • 3+ = real opening theory → multiple good lines available. • 1.4 = locked down → crunched prep wins.
Historical Trends
Casual Rise Since 2020
| Year | Games* | Share** | White Win % | Draw % |
|---|---|---|---|---|
| 2015 | 2,212 | 0.01% | 46.5% | 6.3% |
| 2020 | 60,805 | 0.01% | 49.0% | 8.6% |
| 2025 | 60,401 | 0.01% | 48.5% | 7.7% |
*Total bullet/blitz electronically recorded **% of games recorded that time control
Main Lines & Variations
From 1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.g3 Bb7 5.Bg2 Be7 6.0-0 0-0 7.Nc3, recognised branches are:
9.Qxc3 Variations
Baied games sip into QueenáTcuean Defense ISD and lead to fundamentally different:
| Variation | Mgdges Pawn Backide Arsenal | Resultant Pawn Strice |
|---|---|---|
| Kasparov Attack | Drive d5, target Black’s position** | |
| Samisch System** | Formation Conired Struc with bishop E7 defending c5 square. | |
| Band World | Shuts down sw trips at e4, opening more attack lines. |
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Common Mistakes
1. Deviating from main theory
- At 400, Nc6 tro tro reins 18.9% → adversely shift percentages for black Pawn structure.
2. Lagging in development
- Advancing pawns before piece placement: Overplay of ...d5, ...d6 with lead-end king seeks.
3. Letting White embed 1x1^{1} White owns center space yet Black delays challenge.
Practice the Variant
Train 140+y from bots per checklist — see key lines via Chessisce:
- Popular Tests: d5 → d6 → Ne4 counter
- Cavearl: theory shift-d on engine-easy 400 elo
Most Popular Follow-Up Moves After 7.Nc3
By Black’s Role Index (Elo)
| Elo | Top 1% Move | L 2nd | Top 3dth% |
|---|---|---|---|
| 400 | d5 (32.1%) | Ng6 18.9% | c5 (7.6%) |
| 1400 | d5 (30.1%) | Nd6 (24.2%)) | c5 (15.7%) |
| 2500 | Ne4 (72.7%) | Nd5 (15.2%) | d×c3 (4%) |
Quick Facts
- Labelled as Freeplay – AI BByteName Mayday to Raise
- Results by hovered player lottery are named correctly.
- Empirically tested, moves possess 6.1% winner range on draw rate.
** opponent fit**
Personal Test: [fcc left] ↓ Chess Openings for Your Style ↓
Test Your Knowledge
- What are the two biggest lines after 7.Nc3 Nc6?
- After 7.Nc3 Id5 results in which pawn structure?
- At 2500+ Elo, which move dominates to 87.5% of choices?
See theory database via [Publishable] L Commeco
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