ecocodes
Volume E · Indian defenses‹ E13E15 ›
a1b2c3d4e5f6g7h8
Reference position · Black to move

E14 Queen’s Indian Defense: Spassky System

E14 holds 22 named lines, all under the name Queen’s Indian Defense. It leaves E12 (Queen’s Indian Defense) with 4.e3. With 22 named lines it is the largest code of the 8 Queen’s Indian Defense codes. Its deepest line, Queen’s Indian Defense: Spassky System3, runs to 9...Nxd5, the longest of the 8 Queen’s Indian Defense codes. White’s pieces and pawns attack five squares in Black’s half, the fewest of the 8 Queen’s Indian Defense codes.

Score sheet
#WhiteBlack
1d4Nf6
2c4e6
3Nf3b6
4e3

Moves only E14 plays

Same as E12 up to 3...b6, then:

  1. 4.e3 The e-pawn advances to e3, covering d4 and f4, opening a line for the queen on d1 and the bishop on f1.

Lines filed under E14

They begin with two different first moves.

NameAfter the shared startPliesAt the end
Queen’s Indian Defense: Spassky System1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.e37
Queen’s Indian Defense: Spassky System1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.e3 Bb78
Queen’s Indian Defense: Spassky System1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.e3 Bb7 5.Bd39
Queen’s Indian Defense, with e31.d4 Nf6 2.c4 e6 3.Nf3 d5 4.e3 b6 5.Nc3 Bb710
Queen’s Indian Defense, with e3, Bb4+ Line1.d4 Nf6 2.c4 e6 3.Nf3 Bb4+ 4.Nbd2 b6 5.e3 Bb710
Queen’s Indian Defense: Spassky System1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.e3 Bb7 5.Bd3 d510
Queen’s Indian Defense: Spassky System31.d4 Nf6 2.c4 e6 3.Nf3 b6 4.e3 Bb7 5.Bd3 c510
Queen’s Indian Defense, with e31.d4 Nf6 2.Nf3 e6 3.e3 b6 4.Bd3 Bb7 5.O-O c5 6.c411White castled
Queen’s Indian Defense, with e31.d4 Nf6 2.c4 e6 3.Nf3 d5 4.e3 b6 5.Nc3 Bd6 6.Bd311
Queen’s Indian Defense, with e31.d4 Nf6 2.Nf3 e6 3.e3 b6 4.Bd3 Bb7 5.O-O c5 6.c4 Be712White castled
Queen’s Indian Defense, with e31.d4 Nf6 2.Nf3 e6 3.e3 b6 4.Bd3 Bb7 5.O-O c5 6.c4 g612White castled
Queen’s Indian Defense, with e31.d4 Nf6 2.c4 e6 3.Nf3 d5 4.e3 Be7 5.Nc3 O-O 6.b3 b612Black castled
Queen’s Indian Defense, with e31.d4 Nf6 2.c4 e6 3.Nf3 d5 4.e3 Be7 5.b3 O-O 6.Bd3 b612Black castled
Queen’s Indian Defense, with e31.d4 Nf6 2.Nf3 e6 3.e3 b6 4.Bd3 Bb7 5.O-O Be7 6.c4 O-O 7.Nc313both castled
Queen’s Indian Defense, with e31.d4 Nf6 2.c4 e6 3.Nf3 Bb4+ 4.Nbd2 b6 5.a3 Bxd2+ 6.Qxd2 Bb7 7.e313
Queen’s Indian Defense, with e31.d4 Nf6 2.c4 e6 3.Nf3 d5 4.e3 b6 5.Nc3 Bd6 6.Bd3 O-O 7.O-O Bb714both castled
Queen’s Indian Defense, with e31.d4 Nf6 2.c4 e6 3.Nf3 d5 4.e3 Be7 5.b3 O-O 6.Bb2 b6 7.Nbd2 Bb7 8.Bd315Black castled
Queen’s Indian Defense, with e31.d4 Nf6 2.Nf3 e6 3.e3 b6 4.Bd3 Bb7 5.Nbd2 c5 6.b3 Be7 7.Bb2 d6 8.O-O O-O 9.c417both castled
Queen’s Indian Defense, with e31.Nf3 d5 2.e3 Nf6 3.c4 e6 4.Nc3 Be7 5.d4 O-O 6.b3 b6 7.cxd5 exd5 8.Bb2 Bb7 9.Bd317Black castled
Queen’s Indian Defense, with e31.d4 Nf6 2.Nf3 d5 3.c4 e6 4.e3 b6 5.b3 Bb7 6.Bd3 Nbd7 7.O-O Bd6 8.Bb2 O-O 9.Nbd217both castled
Queen’s Indian Defense: Averbakh Variation1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.e3 Bb7 5.Bd3 c5 6.O-O Be7 7.b3 O-O 8.Bb2 cxd4 9.Nxd417both castled
Queen’s Indian Defense: Spassky System31.d4 Nf6 2.c4 e6 3.Nf3 b6 4.e3 Bb7 5.Bd3 c5 6.Nc3 cxd4 7.exd4 Be7 8.O-O d5 9.cxd5 Nxd518White castled

The road to E14

  1. 1.d4 … 2...e6three earlier stops: A40, A45, A50
  2. 3.Nf3E10 Anti-Nimzo-Indian
  3. 3...b6E12 Queen’s Indian Defense
  4. 4.e3E14

The position after 4.e3

White has brought out the knight on f3; Black the knight on f6. Black is to move and has 29 legal moves.

WhiteBlackMaterial (pawn units)3939Minor pieces developed11Moves spent on pawns32Pawns on d4, e4, d5, e510Squares attacked in the other half54not castlednot castled

Closest boards in other codes

CodeLineDiffers on
D26Queen’s Gambit Accepted: Normal Variation, Traditional Systemfour squares: c4, b6, b7, d7
E10Indian Defense: Anti-Nimzo-Indianfour squares: e2, e3, b6, b7
E15Queen’s Indian Defense: Fianchetto Variationfour squares: e2, g2, e3, g3
A47Pseudo Queen’s Indian Defensesix squares: c2, e2, e3, c4, e6, e7
D05Queen’s Pawn Game: Colle Systemsix squares: c2, c4, d5, b6, b7, d7
D25Queen’s Gambit Accepted: Normal Variationsix squares: c4, b6, e6, b7, d7, e7
E11Bogo-Indian Defensesix squares: e2, e3, b4, b6, b7, f8

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