E94 King’s Indian Defense: Orthodox Variation
E94 holds six named lines, all under the name King’s Indian Defense. It leaves E92, a position of the same name, with 7.O-O. Lines filed under E95 reach one of its named positions by a different move order. Both kings have castled by the end of the reference line, White on move 7 and Black on move 5. None of its six lines contains a capture.
| # | White | Black |
|---|---|---|
| 1 | d4 | Nf6 |
| 2 | c4 | g6 |
| 3 | Nc3 | Bg7 |
| 4 | e4 | d6 |
| 5 | Nf3 | O-O |
| 6 | Be2 | e5 |
| 7 | O-O |
The move that completes E94
The reference line of E95 plays all of these moves and continues beyond them; E94 is the position reached at 7.O-O.
- 7.O-O White castles kingside, opening a line for the queen on d1, guarding the pawn on g2.
Lines filed under E94
All six share the start 1.d4 Nf6 2.c4 and then split two ways at Black’s move 2.
| Name | After the shared start | Plies | At the end |
|---|---|---|---|
| King’s Indian Defense: Orthodox Variation | 2...g6 3.Nc3 Bg7 4.e4 d6 5.Nf3 O-O 6.Be2 e5 7.O-O | 13 | both castled |
| King’s Indian Defense: Orthodox Variation, Donner Defense | 2...g6 3.Nc3 Bg7 4.e4 d6 5.Nf3 O-O 6.Be2 e5 7.O-O c6 | 14 | both castled |
| King’s Indian Defense: Orthodox Variation, Glek Defense | 2...g6 3.Nc3 Bg7 4.e4 d6 5.Nf3 O-O 6.Be2 e5 7.O-O Na6 | 14 | both castled |
| King’s Indian Defense: Orthodox Variation, Positional Defense | 2...d6 3.Nc3 Nbd7 4.e4 e5 5.Nf3 g6 6.Be2 Bg7 7.O-O O-O | 14 | both castled |
| King’s Indian Defense: Orthodox Variation, Ukrainian Defense | 2...g6 3.Nc3 Bg7 4.e4 d6 5.Nf3 O-O 6.Be2 e5 7.O-O a5 | 14 | both castled |
| King’s Indian Defense: Orthodox Variation, Positional Defense, Closed Line | 2...g6 3.Nc3 Bg7 4.e4 d6 5.Nf3 O-O 6.Be2 Nbd7 7.O-O e5 8.d5 | 15 | both castled |
The road to E94
- 1.d4 … 5...O-Oeight earlier stops: A40, A45, A50, E60, E61, E70, E90
- 6.Be2E91 Orthodox Variation
- 6...e5E92 Orthodox Variation
- 7.O-OE94
The position after 7.O-O
White has brought out the knight on c3, knight on f3 and bishop on e2; Black the knight on f6 and bishop on g7. Black could capture with Nxe4, exd4. Black is to move and has 32 legal moves.
Codes that branch off from E94
The reference lines of two other codes leave E94 from two of its named positions; “From” gives the last part of that position’s name.
| Code | From | Moves | Reference line |
|---|---|---|---|
| E95 | Positional Defense | 8.Re1 | King’s Indian Defense: Orthodox Variation |
| E97 | Orthodox Variation | 7...Nc6 | King’s Indian Defense: Orthodox Variation, Aronin-Taimanov Defense |
Closest boards in other codes
| Code | Line | Differs on |
|---|---|---|
| E68 | King’s Indian Defense: Fianchetto Variation, Classical Variation | five squares: e2, g2, g3, d7, b8 |
| A73 | Benoni Defense: Classical Variation, Main Line | six squares: c4, d4, c5, d5, e5, c7 |
| E91 | King’s Indian Defense: Orthodox Variation | six squares: e1, f1, g1, h1, e5, e7 |
| E98 | King’s Indian Defense: Orthodox Variation, Classical System | six squares: e1, f3, d4, d5, e7, b8 |
| A76 | Benoni Defense: Classical Variation, Czerniak Defense | eight squares: c4, d4, c5, d5, e5, c7, e8, f8 |
| E65 | King’s Indian Defense: Fianchetto Variation, Yugoslav Variation | eight squares: e2, g2, g3, e4, c5, e5, c7, e7 |
| E93 | King’s Indian Defense: Petrosian Variation, Normal Defense | eight squares: e1, f1, g1, h1, d4, d5, d7, b8 |
Where lines continue from here
Thirteen named lines filed under other codes pass through the position after 7.O-O. Besides the codes above, they belong to E96, E98, E99.
Other move orders
- King’s Indian Defense: Orthodox Variation, Positional Defense is also reached inside E95 King’s Indian Defense: Orthodox Variation, whose order is 1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Nf3 O-O 6.Be2 e5 7.O-O Nbd7.