ecocodes
Volume E · Indian defenses‹ E16E18 ›
a1b2c3d4e5f6g7h8
Reference position · White to move

E17 Queen’s Indian Defense: Traditional Variation

E17 holds eight named lines, all under the name Queen’s Indian Defense. It leaves E15 (Queen’s Indian Defense: Fianchetto Variation, Traditional Line) with 5.Bg2 Be7. White, to move in that position, has 36 legal moves, the most of the 8 Queen’s Indian Defense codes. Lines of two other codes continue from its position, the third-widest spread of the 8 Queen’s Indian Defense codes. Its deepest line, Queen’s Indian Defense: Classical Variation, Polugaevsky Gambit, runs to 8.Nh4, the fourth-longest of the 8 Queen’s Indian Defense codes.

Score sheet
#WhiteBlack
1d4Nf6
2c4e6
3Nf3b6
4g3Bb7
5Bg2Be7

The move that completes E17

The reference line of E18 plays all of these moves and continues beyond them; E17 is the position reached at 5...Be7.

  1. 5...Be7 The bishop leaves f8 for e7, opening a line for the rook on h8.

Lines filed under E17

All eight share their first ten plies, the whole reference line and then split two ways at White’s move 6.

NameAfter the shared startPliesAt the end
Queen’s Indian Defense: Traditional Variation(the shared start itself)10
Queen’s Indian Defense: Anti-Queen’s Indian System6.Nc311
Queen’s Indian Defense: Classical Variation6.O-O11White castled
Queen’s Indian Defense: Euwe Variation6.O-O O-O 7.b313both castled
Queen’s Indian Defense: Fianchetto Variation, Kramnik Variation6.O-O O-O 7.Re113both castled
Queen’s Indian Defense: Opocensky Variation6.Nc3 Ne4 7.Bd213
Queen’s Indian Defense: Classical Variation, Polugaevsky Gambit6.O-O O-O 7.d5 exd5 8.Nh415Black +1, both castled
Queen’s Indian Defense: Classical Variation, Taimanov Gambit6.O-O O-O 7.d5 exd5 8.Nd415Black +1, both castled

The road to E17

  1. 1.d4 … 3...b6five earlier stops: A40, A45, A50, E10, E12
  2. 4.g3E15 Fianchetto Variation
  3. 4...Bb7E15 Traditional Line
  4. 5...Be7E17

The position after 5...Be7

White has brought out the knight on f3 and bishop on g2; Black the knight on f6, bishop on b7 and bishop on e7.

WhiteBlackMaterial (pawn units)3939Minor pieces developed23Moves spent on pawns32Pawns on d4, e4, d5, e510Squares attacked in the other half65not castlednot castled

Codes that branch off from E17

The reference lines of one other code leave E17 from the position after 6.O-O, each with its own moves.

CodeMovesReference line
E186...O-O 7.Nc3Queen’s Indian Defense: Classical Variation, Traditional Variation

Closest boards in other codes

CodeLineDiffers on
E16Queen’s Indian Defense: Capablanca Variationtwo squares: b4, e7
E05Catalan Opening: Open Defense, Classical Linefive squares: c4, b6, b7, d7, c8
E06Catalan Opening: Closedfive squares: d5, b6, b7, d7, c8
A91Dutch Defense: Classical Variationseven squares: g1, f3, f5, b6, b7, f7, c8
E04Catalan Opening: Open Defenseseven squares: c4, b6, b7, d7, e7, c8, f8
E12Queen’s Indian Defenseseven squares: f1, g2, g3, b7, e7, c8, f8
E10Indian Defense: Anti-Nimzo-Indianeight squares: f1, g2, g3, b6, b7, e7, c8, f8

Where lines continue from here

Besides the codes above, they belong to E19.

Volume E

  1. 00
  2. 01
  3. 02
  4. 03
  5. 04
  6. 05
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  100. 99

Open this line in the finderAll Queen’s Indian Defense codes