King's Gambit Accepted: Allgaier
1.e4 e5 2.f4 exf4 3.Nf3 g5 4.h4 g4 5.Ng5 Nf6
Allgaier
1.2.3.4.5.
What Is The Allgaier?
4...g4 attacks the f3 knight, and 5.Ng5 refuses to retreat: the knight sits on g5 to land on f7 and drag the black king into the open. The knight was never trapped, and retreating hands back the initiative for nothing. 5...Nf6 is the best prepared answer, because after 6.Nxf7 Kxf7 it already guards e4, d5 and h5, blunting the checks that give the Allgaier its bite.
White's payment for the piece is the centre, d4 and e4 together, the f-file after Bxf4, and a black king stuck on f7 with no shelter. Black wins by giving material back at the right moment and walking the king to g7. White wins by opening lines before that happens. Time, not material, settles it.
The Named Lines Of The Allgaier
| Line | Moves |
|---|---|
| Schlechter Defense | 1.e4 e5 2.f4 exf4 3.Nf3 g5 4.h4 g4 5.Ng5 Nf6 |
| Blackburne Gambit | 1.e4 e5 2.f4 exf4 3.Nf3 g5 4.h4 g4 5.Ng5 h6 6.Nxf7 Kxf7 7.Nc3 |
| Horny Defense | 1.e4 e5 2.f4 exf4 3.Nf3 g5 4.h4 g4 5.Ng5 h6 6.Nxf7 Kxf7 7.Qxg4 Nf6 8.Qxf4 Bd6 |
| Urusov Attack | 1.e4 e5 2.f4 exf4 3.Nf3 g5 4.h4 g4 5.Ng5 h6 6.Nxf7 Kxf7 7.Bc4+ d5 8.Bxd5+ Kg7 9.d4 |
| Cook Variation | 1.e4 e5 2.f4 exf4 3.Nf3 g5 4.h4 g4 5.Ng5 h6 6.Nxf7 Kxf7 7.d4 d5 8.Bxf4 dxe4 9.Bc4+ Kg7 10.Be5+ |