E77 King’s Indian Defense: Four Pawns Attack
E77 holds four named lines, all under the name King’s Indian Defense. It leaves E73 (King’s Indian Defense: Normal Variation, Standard Development) with 5...O-O 6.f4. That final move, by the f-pawn, covers e5 and g5. Of all other reference positions, the board of E78 (Four Pawns Attack, Fluid Attack) comes closest, four squares apart.
| # | White | Black |
|---|---|---|
| 1 | d4 | Nf6 |
| 2 | c4 | g6 |
| 3 | Nc3 | Bg7 |
| 4 | e4 | d6 |
| 5 | Be2 | O-O |
| 6 | f4 |
Lines filed under E77
All four share the start 1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 and then split two ways at White’s move 5.
| Name | After the shared start | Plies | At the end |
|---|---|---|---|
| King’s Indian Defense: Four Pawns Attack | 5.Be2 O-O 6.f4 | 11 | Black castled |
| King’s Indian Defense: Four Pawns Attack, Normal Attack | 5.f4 O-O 6.Nf3 c5 7.d5 e6 8.Be2 | 15 | Black castled |
| King’s Indian Defense: Four Pawns Attack, Florentine Gambit | 5.f4 O-O 6.Nf3 c5 7.d5 e6 8.Be2 exd5 9.e5 | 17 | Black +1, Black castled |
| King’s Indian Defense: Six Pawns Attack | 5.f4 O-O 6.Be2 c5 7.d5 e6 8.dxe6 fxe6 9.g4 Nc6 10.h4 | 19 | Black castled |
King’s Indian Defense: Four Pawns Attack, Normal Attack
- 5.f4 The f-pawn advances two squares to f4, covering e5 and g5.
- 5...O-O Black castles kingside, opening a line for the queen on d8, guarding the bishop on g7.
- 6.Nf3 The knight leaves g1 for f3, opening a line for the rook on h1.
- 6...c5 The c-pawn advances two squares to c5, covering b4 and d4, opening a line for the queen on d8.
- 7.d5 The d-pawn advances to d5, covering c6 and e6, opening a line for the queen on d1.
King’s Indian Defense: Four Pawns Attack, Florentine Gambit
- 5.f4 The f-pawn advances two squares to f4, covering e5 and g5.
- 5...O-O Black castles kingside, opening a line for the queen on d8, guarding the bishop on g7.
- 6.Nf3 The knight leaves g1 for f3, opening a line for the rook on h1.
- 6...c5 The c-pawn advances two squares to c5, covering b4 and d4, opening a line for the queen on d8.
- 7.d5 The d-pawn advances to d5, covering c6 and e6, opening a line for the queen on d1.
King’s Indian Defense: Six Pawns Attack
- 5.f4 The f-pawn advances two squares to f4, covering e5 and g5.
- 5...O-O Black castles kingside, opening a line for the queen on d8, guarding the bishop on g7.
- 6.Be2 The bishop leaves f1 for e2.
- 6...c5 The c-pawn advances two squares to c5, covering b4 and d4, opening a line for the queen on d8.
- 7.d5 The d-pawn advances to d5, covering c6 and e6, opening a line for the queen on d1.
The road to E77
- 1.d4 … 4.e4six earlier stops: A40, A45, A50, E60, E61, E70
- 4...d6E70 Normal Variation
- 5.Be2E73 Standard Development
- 6.f4E77
The position after 6.f4
White has brought out the knight on c3 and bishop on e2; Black the knight on f6 and bishop on g7. Black could capture with Nxe4. Black is to move and has 32 legal moves.
Closest boards in other codes
| Code | Line | Differs on |
|---|---|---|
| E81 | King’s Indian Defense: Sämisch Variation, Normal Defense | four squares: f1, e2, f3, f4 |
| E91 | King’s Indian Defense: Orthodox Variation | four squares: g1, f2, f3, f4 |
| E76 | King’s Indian Defense: Four Pawns Attack | six squares: f1, e2, e8, f8, g8, h8 |
| E92 | King’s Indian Defense: Orthodox Variation | six squares: g1, f2, f3, f4, e5, e7 |
| E79 | King’s Indian Defense: Four Pawns Attack, Exchange Variation | seven squares: c1, g1, e3, d4, c6, c7, b8 |
| E80 | King’s Indian Defense: Sämisch Variation | eight squares: f1, e2, f3, f4, e8, f8, g8, h8 |
| E82 | King’s Indian Defense: Sämisch Variation, Double Fianchetto | eight squares: c1, f1, e2, e3, f3, f4, b6, b7 |