Italian Game, Rousseau Gambit

Rousseau Gambit
abcdefgh
8
a8 black rook
c8 black bishop
d8 black queen
e8 black king
f8 black bishop
g8 black knight
h8 black rook
a7 black pawn
b7 black pawn
c7 black pawn
d7 black pawn
g7 black pawn
h7 black pawn
c6 black knight
e5 black pawn
f5 black pawn
c4 white bishop
e4 white pawn
f3 white knight
a2 white pawn
b2 white pawn
c2 white pawn
d2 white pawn
f2 white pawn
g2 white pawn
h2 white pawn
a1 white rook
b1 white knight
c1 white bishop
d1 white queen
e1 white king
h1 white rook
8
77
66
55
44
33
22
11
abcdefgh
Moves1.e4 e5 2.Nf3 Nc6 3.Bc4 f5
ECOC50
Origin19th century
Named afterEugène Rousseau
ParentItalian Game
SynonymPonziani Countergambit

The Rousseau Gambit (or Ponziani Countergambit after Domenico Lorenzo Ponziani) is a chess opening that begins with the moves:

1. e4 e5
2. Nf3 Nc6
3. Bc4 f5

The gambit is named after French chess master Eugène Rousseau. White can decline the gambit by supporting the e-pawn with 4.d3. The resulting position is similar to a King's Gambit Declined with colours reversed, and White's king bishop aiming at Black's weakened kingside. Black will have trouble castling kingside, and Ng5 is a likely threat. White's position is better, but still requires careful play.

Key themes for White are to attack Black's kingside and to avoid attempts by Black to simplify the position. Exchanges involving White's light-square bishop are particularly suspect.

White responses

Gambit Declined: 4.d3

White can decline the gambit and wait to capture the f-pawn. 4...Bc5 transposes to the Lucchini Gambit.

Gambit Accepted: 4.exf5

White still has a good game after the inferior 4.exf5, but the position is less clear. Black usually plays 4...e4, which White may meet by 5.Nd4! Nf6 (5...Nxd4? leads to trouble after 6.Qh5+) 6.Nxc6.

4.d4!

abcdefgh
8a8 black rookb8c8 black bishopd8 black queene8 black kingf8 black bishopg8 black knighth8 black rook8
7a7 black pawnb7 black pawnc7 black pawnd7 black pawne7f7g7 black pawnh7 black pawn7
6a6b6c6 black knightd6e6f6g6h66
5a5b5c5d5e5 black pawnf5 black pawng5h55
4a4b4c4 white bishopd4 white pawne4 white pawnf4g4h44
3a3b3c3d3e3f3 white knightg3h33
2a2 white pawnb2 white pawnc2 white pawnd2e2f2 white pawng2 white pawnh2 white pawn2
1a1 white rookb1 white knightc1 white bishopd1 white queene1 white kingf1g1h1 white rook1
abcdefgh
After 4.d4!

White gets a clear advantage with 4.d4!:

  • 4...fxe4 5.Nxe5 d5 6.Bb5 Ne7 7.0-0 a6 8.Bxc6+ bxc6 (8...Nxc6? 9.Qh5+) 9.f3 Bf5 10.Nc3 +/− (Bilguer Handbuch).[1][2]
  • 4...d6 and now:
    • 5.Ng5 Nh6 6.d5 Nb8 (6...Ne7 7.Nc3 f4 8.g3 Ng6 9.Bb5+ +/−; Maróczy) 7.Nc3 f4 8.h4 Bg4 9.f3 Bd7 10.g3 fxg3 11.f4 +/− (Sozin).
    • 5.dxe5 and now:
      • 5...fxe4 6.Qd5 Qe7 7.Bg5 Be6 8.Qxe4 +/− de Rivière–Anderssen, London 1862.[1]
      • 5...dxe5 6.Qxd8+ Nxd8 (6...Kxd8 7.Bg5+ Nf6 8.Nc3 +/− Morphy–Worrall, London 1859) 7.Nxe5 fxe4 8.Bd2 Bd6 9.Bc3 +/− Löwenthal & Medley vs. Morphy & Mongredien, London 1857.[1]
  • 4...Nf6 5.dxe5 Nxe4 6.0-0 Bc5 7.Nc3 Nxc3 8.bxc3 h6 9.Nd4 g6 10.Nb3 +/− (Bilguer).[1]

See also

References

  1. ^ a b c d T. D. Harding; G. S. Botterill (1977), The Italian Game, B. T. Batsford Limited, p. 128, ISBN 0-7134-3261-6
  2. ^ Kasparov, Gary; Keene, Raymond (1982), Batsford Chess Openings, American Chess Promotions, p. 308, ISBN 0-7134-2112-6
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