E63 King’s Indian Defense: Fianchetto Variation, Panno Variation
E63 holds four named lines, all under the name King’s Indian Defense. It leaves E60 (King’s Indian Defense: Fianchetto Variation) with 4...O-O 5.Bg2 d6 6.O-O Nc6 7.Nc3 a6. Its deepest line, King’s Indian Defense: Fianchetto Variation, Panno Variation, Donner Line, runs to 13...Bh6, the second-longest of the 39 King’s Indian Defense codes. Both kings have castled by the end of the reference line, White on move 6 and Black on move 4.
| # | White | Black |
|---|---|---|
| 1 | d4 | Nf6 |
| 2 | c4 | g6 |
| 3 | Nf3 | Bg7 |
| 4 | g3 | O-O |
| 5 | Bg2 | d6 |
| 6 | O-O | Nc6 |
| 7 | Nc3 | a6 |
Moves only E63 plays
Same as E65 up to 6.O-O, then:
- 6...Nc6 The knight leaves b8 for c6, opening a line for the rook on a8.
- 7.Nc3 The knight leaves b1 for c3, opening a line for the rook on a1.
- 7...a6 The a-pawn advances to a6, covering b5, opening a line for the rook on a8.
Lines filed under E63
All four share their first 14 plies, the whole reference line and then split two ways at White’s move 8.
| Name | After the shared start | Plies | At the end |
|---|---|---|---|
| King’s Indian Defense: Fianchetto Variation, Panno Variation | (the shared start itself) | 14 | both castled |
| King’s Indian Defense: Fianchetto Variation, Panno Variation, Korchnoi Line | 8.h3 Rb8 9.Be3 b5 10.Nd2 | 19 | both castled |
| King’s Indian Defense: Fianchetto Variation, Panno Variation, Blockade Line | 8.d5 Na5 9.Nd2 c5 10.Qc2 e5 | 20 | both castled |
| King’s Indian Defense: Fianchetto Variation, Panno Variation, Donner Line | 8.d5 Na5 9.Nd2 c5 10.Qc2 Rb8 11.b3 b5 12.Bb2 bxc4 13.bxc4 Bh6 | 26 | both castled |
King’s Indian Defense: Fianchetto Variation, Panno Variation, Korchnoi Line
- 8.h3 The h-pawn advances to h3, covering g4.
- 8...Rb8 The rook goes from a8 to b8.
- 9.Be3 The bishop leaves c1 for e3, opening a line for the rook on a1 and the queen on d1.
- 9...b5 The b-pawn advances two squares to b5, covering a4 and c4, opening a line for the rook on b8 and the bishop on c8.
- 10.Nd2 The knight goes from f3 to d2, opening a line for the bishop on g2, guarding the pawn on c4.
King’s Indian Defense: Fianchetto Variation, Panno Variation, Blockade Line
- 8.d5 The d-pawn advances to d5, covering c6 and e6, opening a line for the queen on d1, attacking the knight on c6.
- 8...Na5 The knight goes from c6 to a5.
- 9.Nd2 The knight goes from f3 to d2, opening a line for the bishop on g2, guarding the pawn on c4.
- 9...c5 The c-pawn advances two squares to c5, covering b4 and d4, opening a line for the queen on d8.
- 10.Qc2 The queen goes from d1 to c2, opening a line for the rook on f1.
King’s Indian Defense: Fianchetto Variation, Panno Variation, Donner Line
- 8.d5 The d-pawn advances to d5, covering c6 and e6, opening a line for the queen on d1, attacking the knight on c6.
- 8...Na5 The knight goes from c6 to a5.
- 9.Nd2 The knight goes from f3 to d2, opening a line for the bishop on g2, guarding the pawn on c4.
- 9...c5 The c-pawn advances two squares to c5, covering b4 and d4, opening a line for the queen on d8.
- 10.Qc2 The queen goes from d1 to c2, opening a line for the rook on f1.
The road to E63
One of the six named positions on the way are reached by a move order other than their own.
- 1.d4 … 2...g6four earlier stops: A40, A45, A50, E60
- 3.Nf3E60 King’s Knight Variation by another order
- 4.g3E60 Fianchetto Variation
- 7...a6E63
The position after 7...a6
White has brought out the knight on c3, knight on f3 and bishop on g2; Black the knight on c6, knight on f6 and bishop on g7. White is to move and has 37 legal moves.
Closest boards in other codes
| Code | Line | Differs on |
|---|---|---|
| A89 | Dutch Defense: Leningrad Variation, Matulovic Variation | four squares: f5, a6, a7, f7 |
| A39 | English Opening: Symmetrical Variation, Mecking Variation | six squares: c5, a6, d6, a7, c7, d7 |
| E66 | King’s Indian Defense: Fianchetto Variation, Yugoslav Variation, Advance Line | six squares: d4, c5, d5, a6, a7, c7 |
| A88 | Dutch Defense: Leningrad Variation, Warsaw Variation | seven squares: f5, a6, c6, a7, c7, f7, b8 |
| D77 | Neo-Grünfeld Defense: Classical Variation | eight squares: b1, c3, d5, a6, c6, d6, a7, b8 |
| E67 | King’s Indian Defense: Fianchetto Variation, Debrecen Defense | eight squares: e1, f1, g1, h1, a6, c6, a7, d7 |
| E68 | King’s Indian Defense: Fianchetto Variation, Classical Variation | eight squares: e2, e4, e5, a6, c6, a7, d7, e7 |