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Chess Opening Theory/1. e4/1...e5/2. f4/2...exf4/3. Nf3/3...g5/4. h4/4...g4

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King's Knight Gambit
a b c d e f g h
8a8 black rookb8 black knightc8 black bishopd8 black queene8 black kingf8 black bishopg8 black knighth8 black rook8
7a7 black pawnb7 black pawnc7 black pawnd7 black pawne7 black kingf7 black pawng7 black kingh7 black pawn7
6a6 black kingb6 black kingc6 black kingd6 black kinge6 black kingf6 black kingg6 black kingh6 black king6
5a5 black kingb5 black kingc5 black kingd5 black kinge5 black kingf5 black kingg5 black kingh5 black king5
4a4 black kingb4 black kingc4 black kingd4 black kinge4 white pawnf4 black pawng4 black pawnh4 white pawn4
3a3 black kingb3 black kingc3 black kingd3 black kinge3 black kingf3 white knightg3 black kingh3 black king3
2a2 white pawnb2 white pawnc2 white pawnd2 white pawne2 black kingf2 black kingg2 white pawnh2 black king2
1a1 white rookb1 white knightc1 white bishopd1 white queene1 white kingf1 white bishopg1 black kingh1 white rook1
a b c d e f g h
Common moves:
5. Ne5 - Kieseritzky Gambit
5. Ng5 - Allgaier Gambit

White's knight is attacked. Although there are some King's Gambit positions where White can ignore this attack and carry on developing, this isn't one of them.

  • 5. Ne5 is the Kieseritzky Gambit, which can be considered the main line of the whole King's Gambit. White targets f7 and g4, in the hope of recovering the sacrificed pawn and leaving Black with weak pawns on f4, f7 and h7. However, as White is repeatedly moving the knight, Black can catch up on development with moves like ...d6 and ...Nf6. Even if Black does end up with doubled isolated f-pawns, the one on f4 will remain a thorn in White's side.
  • 5. Ng5 is the Allgaier Gambit. White allows Black to trap the knight with 5...h6, planning 6.Nxf7, weakening the Black king. It is considered unsound.

5.Nd4 and 5.Ng1 hinder White's development. 5.Nh2 leaves the h4-pawn undefended.

Theory table

[edit | edit source]
For explanation of theory tables, see theory table and for notation, see algebraic notation.

.

1.e4 e5 2.f4 exf4 3.Nf3 g5 4. h4 g4

5 6
Kieseritzky Gambit Ne5
Nf6
Allgaier Gambit Ng5
h6		 Nxf7
Kxf7
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References

[edit | edit source]
  • "The King's Gambit". The Gambiteer's Guild. Retrieved 25 Jul 2014.


v · t · e
Chess Opening Theory
1. e4 e5
Open games
2. Nf3
2...Nc6
3. Bb5
Spanish
3. Bc4
Italian
3. Nc3
Three knights
Other
2...Nf6
Russian
2...d6
Philidor
Other
2. f4
King's gambit
2...exf4
Accepted
Other
Declined
2. Nc3
Vienna
Other
1. e4 c5
Sicilian
2. Nf3
2...Nc6 3. d4 cxd4 4. Nxd4
2...Nc6 other
2...d6 3. d4 cxd4 4. Nxd4
2...d6 other
2...e6 3. d4 cxd4 4. Nxd4
2...e6 other
Others
Anti-Sicilians
1. e4 e6
French
1. e4 c6
Caro-Kann
1. e4 other
1. d4 d5
Closed games
2. c4
Queen's gambit
2. Nc3
2. other
1. d4 Nf6
Indian
2. c4 e6
2. c4 g6
2. c4 other
2. Nf3
2. other:
1. d4 f5
Dutch
1. d4 ...other:
1. Nf3
Zukertort
Flank
Unorthodox
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