Chess Openings

1. Nf3 d5 2. e4 dxe4 3. Ng5

1. d4 Nf6 2. c4 g6 3. d5 b5

1. d4 Nf6 2. c4 g6 3. d5 b5

1. e4 e5 2. Ne2

1. e4 Nf6

(Brooklyn Defense)

1. e4 Nf6 2. e5 Ng8

(Exchange Variation)

1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. c4 Nb6 5. exd6

(Four pawns attack)

1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. c4 Nb6 5. f4

(Modern Variation)

1. e4 Nf6 2. e5 Nd5 3. d4 d6 4. Nf3

(Retreat Variation)

see Brooklyb Defense

(Two pawns attack)

1. e4 Nf6 2. e5 Nd5 3. c4 Nb6 4. c5 Nd5

See Queen's Gambit

1. Nh3 d5 2. g3 e5 3. f4 Bxh3 4. Bxh3 exf4 5. O-O

1. d4 d5 2. Qd3

1. d4 Nf6 2. c4 g6 3. f3

1. e4 a6

1. e4 g5

1. Nc3 2. a3

1. d4 Nf6 2. c4 c5 3. d5 b5

1. d4 Nf6 2. c4 c5 3. d5

1. d4 Nf6 2. c4 c5 3. d5 e5

(Four pawns attack)

1. d4 Nf6 2. c4 c5 3. d5 e6 4. Nc3 exd5 5. cxd5 d6 6. e4 g6 7. f4

(Knight's Tour Variation)

1. d4 Nf6 2. c4 c5 3. d5 e6 4. Nc3 exd5 5. cxd5 d6 6. Nf3 g6 7. Nd2

(Mikenas Attack)

1. d4 Nf6 2. c4 c5 3. d5 e6 4. Nc3 exd5 5. cxd5 d6 6. e4 g6 7. f4 Bg7 8. e5

(Old)

1. d4 c5 2. d5

(Taimanov Variation)

1. d4 Nf6 2. c4 c5 3. d5 e6 4. Nc3 exd5 5. cxd5 d6 6. e4 g6 7. f4 Bg7 8. Bb5+

1. f4

(From's Gambit)

1. f4 e5

(Swiss Gambit)

1. f4 f5 2. e4

1. e4 e5 2. Bc4

(Calabrian Gambit)

1. e4 e5 2. Bc4 f5

(Lewis)

1. e4 e5 2. Bc4 Bc5 3. c3 d5

(Lopez)

1. e4 e5 2. Bc4 Bc5 3. Qe2

1. d4 Nf6 2. c4 Nc6

1. d4 d5 2. e4 dxe4 3. Nc3 Nf6 4. f3

1. d4 Nf6 2. c4 e6 3. Nf3 c5 4. d5 b5

1. e4 e5 2. Nf3 Nf6 3. Bc4 Nxe4 4. Nc3

1. d4 Nf6 2. c4 e5

(Balogh Gambit)

1. d4 Nf6 2. c4 e5 3. dxe5 Ng4 4. e4 d6

(Fajarowicz Variation)

1. d4 Nf6 2. c4 e5 3. dxe5 Ne4

1. b4, 2. a3

1. e4 c6 2. d4 d5

(Advance Variation)

1. e4 c6 2. d4 d5 3. e5

(Bronstein-Larsen Variation)

1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Nf6 5. Nxf6+ gxf6

(Edinburgh Variation)

1. e4 c6 2. d4 d5 3. Nd2 Qb6

(Exchange Variation)

1. e4 c6 2. d4 d5 3. exd5 cxd5

(Fantasy Variation)

1. e4 c6 2. d4 d5 3. f3

(Goldman Variation)

1. e4 c6 2. Nc3 d5 3. Qf3

(Gurgenidze Variation)

1. e4 c6 2. d4 d5 3. Nc3 g6

(Main Line)

1. e4 c6 2. d4 d5 3. Nc3 dxe4 4. Nxe4 Bf5

(New)

1. e4 c6 2. d4 d5 3. Nd2 g6

(Panov Attack) 1. e4 c6 2. d4 d5 3. exd5 cxd5 4. c4

(Two Knights Variation

1. e4 c6 2. Nc3 d5 3. Nf3

1. d4 Nf6 2. c4 e6 3. g3 d5

(Classical Line) 1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 dxc4 5. Nf3 Be7

(Closed Variation)

1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 Be7 5. Nf3 O-O 6. O-O

(Open Variation)

1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2 dxc4

1. e4 d5

(Icelandic)

1. e4 d5 2. exd5 Nf6 3. c4 e6

(Mieses-Kotrc Gambit)

1. e4 d5 2. exd5 Qxd5 3. Nc3 Qa5 4. b4

(Scandinavian Gambit)

1. e4 d5 2. exd5 Nf6 3. c4 c6

1. e4 e5 2. d4 exd4 3. Qxd4

1. d4 e5

1. d4, 2. Nf3, 3. e3, 4. Bd3, 5. c3, 6. O-O, 7. Nbd2

1. e4 Nc6 2. Nf3 f5

1. g3 e5 2. Bg2 d5 3. b4

1. e4 e5 2. Nf3 f6

1. e4 e5 2. d4 exd4 3. c3

1. d4 Nf6 2. Nf3 e6 3. e3 Ne4

b3, Bb2, g3, Bg2

1. Nc3

1. d4 f5

(Balogh's Defense)

1. d4 f5 2. e4 d6

(Classical System)

1. d4 f5 2. g3 Nf6 3. Bg2 e6

(Ilyin-Genevsky System)

1. d4 f5 2. g3 Nf6 3. Bg2 e6 4. c4 Be7 5. Nf3 O-O 6. O-O d6

(Korchnoi Attack)

1. d4 f5 2. h3

(Krejcik Gambit)

1. d4 f5 2. g4

(Leningrad Variation)

1. d4 f5 2. c4 Nf6 3. g3 g6 4. Bg2 Bg7

(Manhattan Variation)

1. d4 f5 2. Qd3

(Nimzo-Indian)

1. d4 f5 2. c4 Nf6 3. Nf3 e6 4. Nc3 Bb4

(Reversed)

1. f4 d5

(Sjodin)

1. d4 e6 2. Nf3 f5 3. e4

(Spielmann Gambit)

1. d4 f5 2. Nc3 Nf6 3. g4

(Staunton Gambit)

1. d4 f5 2. e4

(Stonewall Formation)

1. d4 f5 2. c4 Nf6 3. g3 e6 4. Bg2 Be7 5. Nf3 O-O 6. O-O d5

1. d4 Nf6 2. c4 e6 3. Nf3 a6

1. e4 e5 2. Nf3 d5

1. d4 e6 2. c4 b6 3. e4 Bb7

1. c4

(Accelerated Fianchetto)

see English Opening (Carls' Bremen System)

(Adorjan Defense)

1. c4 g6 2. e4 e5

(Anglo-Polish Dutch)

1. c4 f5 2. b4

(Anglo-Slav)

1. c4 c6

(Basmaniac Gambit)

1. c4 c5 2. Nf3 h6

(Bellon Gambit)

1. c4 e5 2. Nc3 Nf6 3. Nf3 e4 4. Ng5 b5

(Carls' Bremen System)

1. c4 e5 2. Nc3 Nf6 3. g3

(Closed Variation)

1. c4 e5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7

(Double Fianchetto Defense)

1. c4 Nf6 2. Nf3 b6 3. g3 Bb7 4. Bg2 c5 5. O-O g6

(English Defense)

1. c4 b6 2. d4 e6

(Fischer's Gambit)

1. c4 e5 2. Nc3 Nc6 3. g3 f5 4. Bg2 Nf6 5. d3 Bc5 6. e3 f4

(Four Knights Variation)

1. c4 e5 2. Nc3 Nf6 3. Nf3 Nc6

(Great Snake)

1. c4 g6

(Grünfeld)

1. c4 Nf6 2. Nc3 d5

(Hedgehog Defense)

1. c4 c5 2. Nf3 Nf6 3. Nc3 e6 4. g3 b6

(Keres Defense)

1. c4 c5 2. Nf3 Nf6 3. Nc3 e6 4. g3 d5 5. cxd5 Nxd5 6. Bg2 Nc6 7. O-O Be7

(King's Indian)

1. c4 Nf6 2. Nc3 g6 3. g3 Bg7 4. Bg2 O-O

(Kurajica Defense)

1. c4 e6 2. Nf3 d5 3. g3 c6

(Nimzo-Indian)

1. c4 Nf6 2. Nc3 e6 3. Nf3 Bb4

(Orangutan)

1. c4 Nf6 2. b4

(Queen's Indian)

1. c4 Nf6 2. Nc3 e6 3. Nf3 b6

(Romanishin Variation)

1. c4 Nf6 2. Nf3 e6 3. g3 a6 4. Bg2 b5

(Rubinstein/Botvinnik Variation)

1. c4 c5 2. Nc3 Nf6 3. g3 d5 4. cxd5 Nxd5 5. Bg2 Nc7

(Slav Defense)

1. c4 Nf6 2. Nc3 c6

(Symmetrical Four Knights)

1. c4 c5 2. Nf3 Nf6 3. Nc3 Nc6

(Symmetrical Variation)

1. c4 c5

(Ultra-Symmetrical)

1. c4 c5 2. Nc3 Nc6 3. g3 g6 4. Bg2 Bg7

see Charlick Englund Gambit

1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6

(Belgrade Gambit)

1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. d4 exd4 5. Nd5

(Rubinstein Variation)

1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Nd4

(Scotch)

1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. d4

(Spanish)

1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5

(Svenonius Variation)

1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Bb4 5. O-O O-O 6. d3 d6

(Symmetrical Variation)

1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bb5 Bb4 5. O-O O-O 6. d3 d6

1. d4 e6 2. c4 Bb3+

1. e4 e6

(Advance Variation)

1. e4 e6 2. d4 d5 3. e5

(Alekhine-Chatard Attack)

1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 Be7 5. e5 Nfd7 6. h4

(Burn Variation)

1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 dxe4

(Chigorin Variation)

1. e4 e6 2. Qe2

(Classical Variation)

1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 Be7

(Exchange Variation)

1. e4 e6 2. d4 d5 3. exd5 exd5

(Extended Bishop Swap)

1. e4 e6 2. d4 d5 3. e5 c5 4. c3 Qb6 5. Nf3 Bd7 6. Be2 Bb5

(Franco-Benoni)

1. e4 e6 2. d4 c5 3. d5

(Guimard Variation)

1. e4 e6 2. d4 d5 3. Nd2 Nc6

(MacCutcheon Variation)

1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. Bg5 Bb4

(Marshall Defense)

1. e4 e6 2. d4 d5 3. Nc3 c5

(Milner-Barry Gambit)

1. e4 e6 2. d4 d5 3. e5 c5 4. c3 Nc6 5. Nf3 Qb6 6. Bd3 cxd4 7. cxd4 Bd7 8. O-O Nxd4 9. Nxd4 Qxd4

(Reti)

1. e4 e6 2. b3

(Reversed Philidor)

1. e4 e6 2. d3 d5 3. Nd2 Nf6 4. Ngf3 Nc6 5. Be2

(Rubinstein Variation)

1. e4 e6 2. d4 d5 3. Nc3 dxe4

(Steinitz Attack)

1. e4 e6 2. e5

(Steinitz Variation)

1. e4 e6 2. d4 d5 3. Nc3 Nf6 4. e5

(Tarrasch Variation)

1. e4 e6 2. d4 d5 3. Nd2

(Two Knights Variation)

1. e4 e6 2. Nf3 d5 3. Nc3

(Winawer Variation)

1. e4 e6 2. d4 d5 3. Nc3 Bb4

(Winawer Variation-Poisoned Pawn)

1. e4 e6 2. d4 d5 3. Nc3 Bb4 4. e5 c5 5. a3 Bxc3+ 6. bxc3 Ne7 7. Qg4 Qc7 8. Qxg7 Rg8 9. Qxh7 cxd4

(Wing Gambit)

1. e4 e6 2. Nf3 d5 3. e5 c5 4. b4

1. Nc3 f5 2. e4 fxe4 3. d3

1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5

(Canal Variation)

1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. d3 Nf6 5. Nc3 d6 6. Bg5

(Cracow Variation)

1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Nf6 5. d4 exd4 6. cxd4 Bb4+ 7. Kf1

(Evans Gambit)

1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. b4

(Evans Gambit-Compromised Defense)

1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. b4 Bxb4 5. c3 Ba5 6. d4 exd4 7. O-O dxc3

(Moller Attack)

1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Nf6 5. d4 exd4 6. cxd4 Bb4+ 7. Nc3 Nxe4 8. O-O Bxc3 9. d5

(Pianissimo)

1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3 Nf6 5. d3

(Rousseau)

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

See Spike

1. d4 Nf6 2. c4 g6 3. Nc3 d5

(Classical Line)

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. Qb3 dxc4 6. Qxc4 O-O 7. e4

(Exchange Variation)

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. cxd5 Nxd5 5. e4

(Neo-Grünfeld)

1. d4 Nf6 2. c4 g6 3. g3 Bg7 4. Bg2 d5

(Prins Variation)

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. Qb3 dxc4 6. Qxc4 O-O 7. e4 Bg4

(Reversed)

1. Nf3 d5 2. g3 c5 3. Bg2 Nc6 4. d4

(Smyslov Variation)

1. d4 Nf6 2. c4 g6 3. Nc3 d5 4. Nf3 Bg7 5. Qb3 dxc4 6. Qxc4 O-O 7. e4 Bg4

1. e4 b6 2. d4 Ba6

1. d4 Nf6 2. Nf3 e6 3. Bg5 c5 4. e4

...g6,...f6,...e6,...d6

see Black Knights' Tango

1. d4 g6

1. e4 e5 2. f4

(Accepted)

1. e4 e5 2. f4 exf4

(Algaier Gambit)

1. e4 e5 2. f4 exf4 3. Nf3 g5 4. h4 g4 5. Ng5

(Bertin)

1. e4 e5 2. f4 exf4 3. Nf3 g5 4. Bc4 Bh4+ 5. g3

(Breyer Gambit)

1. e4 e5 2. f4 exf4 3. Qf3

(Bryan)

1. e4 e5 2. f4 exf4 3. Bc4 Qh4+ 4. Kf1 b5

(Cunningham Variation)

1. e4 e5 2. f4 exf4 3. Qf3

(Declined)

1. e4 e5 2. f4 anything but 2....exf4

(Double Muzio)

1. e4 e5 2. f4 exf4 3. Nf3 g5 4. Bc4 g4 5. O-O gxf3 6. Qxf3 Qf6 7. e5 Qxe5 8. Bxf7+

(Falkbeer Counter Gambit)

1. e4 e5 2. f4 d5

(Fischer's Defense)

1. e4 e5 2. f4 exf4 3. Nf3 d6

(Ghulam Khassim)

1. e4 e5 2. f4 exf4 3. Nf3 g5 4. Bc4 g4 5. d4

(Hanstein Gambit)

1. e4 e5 2. f4 exf4 3. Nf3 g5 4. Bc4 g4 5. d4

(Keene Defense)

1. e4 e5 2. f4 Qh4+ 3. g3 Qe7

(Keres)

1. e4 e5 2. f4 exf4 3. Nc3

(Kieseritzky Gambit)

1. e4 e5 2. f4 exf4 3. Nf3 g5 4. h4 g4 5. Ne5

(King Knight's Gambit)

1. e4 e5 2. f4 exf4 3. Nf3

(King's Bishop Gambit)

1. e4 e5 2. f4 exf4 3. Bc4

(Lesser Bishop's Gambit)

1. e4 e5 2. f4 exf4 3. Be2

(Lopez-Gianutio)

1. e4 e5 2. f4 exf4 3. Bc4 f5

(McDonnell)

1. e4 e5 2. f4 exf4 3. Nf3 g5 4. Bc4 g4 5. Nc3

(Muzio Gambit)

1. e4 e5 2. f4 exf4 3. Nf3 g5 4. Bc4 g4 5. O-O

(Norwalde Variation)

1. e4 e5 2. f4 Qf6

(Pernau)

see King's Gambit (Keres)

(Philidor Gambit)

1. e4 e5 2. f4 exf4 3. Nf3 g5 4. Bc4 Bg7 5. h4 h6 6. d4 d6 7. c3

(Quaade)

1. e4 e5 2. f4 exf4 3. Nf3 g5 4. Nc3

(Rice Gambit)

1. e4 e5 2. f4 exf4 3. Nf3 g5 4. h4 g4 5. Ne5 Nf6 6. Bc4 d5 7. exd5 Bd6 8. O-O

(Rosentreter)

1. e4 e5 2. f4 exf4 3. Nf3 g5 4. d4 g4 5. Bf4

(Salvio)

1. e4 e5 2. f4 exf4 3. Nf3 g5 4. Bc4 g4 5. Ne5

(Sorensen)

1. e4 e5 2. f4 exf4 3. Nf3 g5 4. d4 g4 5. Ne5

(Willemson)

1. e4 e5 2. f4 exf4 3. d4

1. e4, 2. d3, 3. Nbd2, 4. Nf3, 5. g3, 6. Bg2, 7. O-O

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7

(Averbakh Variation)

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Be2 O-O 6. Bg5

(Classical Variation)

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 O-O 6. Be2

(Fianchetto System)

1. d4 Nf6 2. c4 g6 3. g3 Bg7 4. Bg2 O-O 5. Nc3 d6 6. Nf3

(Four Pawns Attack)

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f4

(Makogonov Variation)

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. h3

(Old Indian Defense)

1. d4 Nf6 2. c4 d6

(Panno Variation)

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 O-O 6. Be3 Nc6

(Reversed)

see King's Indian Attack

(Robatsch Defense)

see Modern Defense

(Sämisch Attack)

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3

(Sämisch-Orthodox Variation)

1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. f3 O-O 6. Be3 e5

(Yugoslav Line)

1. d4 Nf6 2. c4 g6 3. g3 Bg7 4. Bg2 O-O 5. Nc3 d6 6. Nf3 c5

1. b3

1. e4 e5 2. Nf3 f5

(Corkscrew)

1. e4 e5 2. Nf3 f5 3. Ne5 Nf6 4. Bc4 fxe4 5. Nxf7 Qe7 6. Nxh8 d5

1. e4 Na6

1. Nf3 f5 2. e4

1. d4 Nf6 2. c4 g6 3. Qc2

1. d3

1. e4 g6

(Pterodactyl)

1. e4 g6 2. d4 Bg7 3. c4 d6 4. Nc3 c5 5. Nf3 Qa5

(Randspringer Variation)

1. e4 g6 2. d4 Bg7 3. c4 d6 4. Nc3 f5

1. e4 g6 2. d4 Bg7 3. c4 d6 4. Nf3 Bg4

1. e4 e5 2. Qf3

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4

(Classical Variation)

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2

(Dutch)

see Dutch Defense (Nimzo-Indian)

(Fischer Variation)

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 b6

(Gligoric Variation)

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3 O-O 5. Bd3 d5 6. Nf3 c5 7. O-O

(Hübner Variation)

1. d4 Nf6 2. c4 e6 3. Nc3 bb4 4. e3 c5 5. Bd3 Nc6 6. Nf3 Bxc3+

(Leningrad Variation)

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Bg5

(Mikenas Attack)

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qd3

(Milner-Barry Variation)

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qc2 Nc6

(Rubinstein Variation)

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. e3

(Sämisch Variation)

1. d4 Nf6 2. c4 e6 3. Nc3 bb4 4. a3

(Spielmann Variation)

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 4. Qb3

1. e4 Nc6

(Marshall Gambit)

1. e4 Nc6 2. d4 d5 3. exd5 Qxd5 4. Nc3

see Sokolsky Opening

1. e4 b6

1. Nh3

1. e4 e5 2. Nf3 Nf6

(Cochrane Gambit)

1. e4 e5 2. Nf3 Nf6 3. Nxe5 d6 4. Nxf7

1. e4 e5 2. Nf3 d6

(Locock)

1. e4 e5 2. Nf3 d6 3. d4 Nf6 4. Ng5 h6 5. Nxf7

(Lopez Counter Gambit)

1. e4 e5 2. Nf3 d6 3. Bc4 f5

1. e4 d6

(Austrian Attack)

1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. f4

(Byrne Variation)

1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. Bg5

(Classical System)

1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. Nf3 Bg7

(Fianchetto Variation)

1. e4 d6 2. d4 Nf6 3. Nc3 g6 4. g3

(Reversed)

1. Nf3 d5 2. g3 Nc6 3. Bg2 e5 4. d3

see Sokolsky Opening

1. d4 b5

1. d4 d5 2. e4 dxe4 3. Nc3 Bf6 4. Bg5

1. e4 e5 2. Nf3 Nc6 3. c3

1. d4 d5 2. Bg5

1. d4 d5 2. c4

(Abrahams-Noteboom Variation)

1. d4 d5 2. c4 c6 3. Nc3 e6 4. Nf3 dxc4 5. a4 Bb4 6. e3 b5 7. Bd2 a5

(Accepted)

1. d4 d5 2. c4 dxc4

(Albin Counter Gambit)

1. d4 d5 2. c4 e5

(Anti-Meran Variation)

1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 e6 5. Bg5

(Cambridge Springs Defense)

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Nbd7 5. e3 c6 6. Nf3 Qa5

(Chigorin's Defense)

1. d4 d5 2. c4 Nc6

(Classical Variation)

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Nf3 Be7 5. Bf4

(Declined)

1. d4 d5 2. c4 anything but 2....dxc4

(Dutch Variation)

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 c5 6. cxd5 cxd4

(Exchange Variation)

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. cxd5 exd5

(Janowski Variation)

1. d4 d5 2. c4 e6 3. Nc3 a6

(Lasker's Defense)

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Be7 5. e3 O-O 6. Nf3 h6 7. Bh4 Ne4

(Manhattan Variation)

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Nbd7 5. e3 Bb4

(Marshall Gambit)

1. d4 d5 2. c4 e6 3. Nc3 c5 4. cxd5 exd5 5. e4

(Marshall Variation)

1. d4 d5 2. c4 Nf6

(Meran Variation)

1. d4 d5 2. c4 Nf6

(Orthodox Defense)

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Be7 5. e3 O-O 6. Nf3 Nbd7

(Peruvian)

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 c5

(Petrosian Variation)

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Be7 5. e3 O-O 6. Nf3 h6 7. Bxf6

(Ragozin System)

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Nf3 Bb4

(Reynolds Variation)

1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 e6 5. e3 Nbd7 6. Bd3 dxc4 7. Bxc4 b5 8. Bd3 a6 9. e4 c5 10. d5

(Romih Variation)

1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 e6 5. e3 Nbd7 6. Bd3 Bb4

(Sahovic Defense)

1. d4 d5 2. c4 Bf5

(Semi-Slav Defense)

1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nf3 c5

(Semi-Tarrasch Defense)

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Nf3 c5

(Slav Defense)

1. d4 d5 2. c4 c6

(Swedish Variation)

1. d4 d5 2. c4 e6 3. Nc3 c5 4. cxd5 exd5 5. Nf3 Nc6 6. g3

(Tarrasch Defense)

1. d4 d5 2. c4 e6 3. Nc3 c5

(Tarrasch-Rubinstein Variation)

1. d4 d5 2. c4 e6 3. Nc3 c5 4. cxd5 exd5 5. Nf3 Nc6 6. g3

(Tartakower Variation)

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5 Be7 5. e3 O-O 6. Nf3 h6 7. Bh4 b6

(Vienna Variation)

1. d4 d5 2. c4 e6 3. Nf3 Nf6 4. Bg5 Bb4+

(von Hennig-Schara Gambit)

1. d4 d5 2. c4 e6 3. Nc3 c5 4. cxd5 cxd4

(Winawer Counter Gambit)

1. d4 d5 2. c4 c6 3. Nc3 e5

1. d4 Nf6 2. c4 e6 3. Nf3 b6

(Petrosian System)

1. d4 Nf6 2. c4 e6 3. Nf3 b6 4. a3

1. d4 Nc6 2. c4

1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Bb5

1. Nf3 d5

(Barcza System)

1. Nf3 d5 2. g3

(Benoni Reversed)

1. Nf3 d5 2. c4 d4

(Gambit Accepted)

1. Nf3 d5 2. c4 dxc4

(Lasker System)

1. Nf3 d5 2. c4 c6 3. b3 Nf6 4. g3 Bf5

(Neo-Catalan)

1. Nf3 d5 2. c4 e6 3. g3

(Polonaise)

1. Nf3 d5 2. c4 d4 3. b4

1. d4 d5 2. Nc3

see Petrov's Defense

1. d4 Nf6 2. Bg5

1. e4 e5 2. Nf3 Nc6 3. Bb5

(Alapin Variation)

1. e4 e5 2. Nf3 Nc6 3. Bb5 Bb4

(Berlin Defense)

1. e4 e5 2. Nf3 Nc6 3. Bb5 Nf6

(Bird's Defense)

1. e4 e5 2. Nf3 Nc6 3. Bb5 Nd4

(Classical Defense)

1. e4 e5 2. Nf3 Nc6 3. Bb5 Bc5

(Closed Defense)

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7

(Closed-Chigorin Variation)

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. h3 Na5

(Closed-Smyslov Variation)

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 d6 8. c3 O-O 9. h3 Bb7

(Closed-Zaitsev)

(Cordel Defense)

see Ruy Lopez (Classical)

(Cozio Defense)

1. e4 e5 2. Nf3 Nc6 3. Bb5 Nge7

(Dilworth Attack)

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. d4 b5 7. Bb3 d5 8. dxe5 Be6 9. c3 Bc5 10. Nbd2 O-O 11. Bc2 Nxf2

(Exchange Variation)

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Bxc6

(Jaenisch Gambit)

see Ruy Lopex (Schliemann)

(Marshall Attack)

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Re1 b5 7. Bb3 O-O 8. c3 d5

(Modern Steinitz Defense)

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 d6

(Open Defense)

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4

(Open Defense-Harksen)

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Nxe4 6. d4 b5 7. Bb3 d5 8. c4

(Schliemann Gambit)

1. e4 e5 2. Nf3 Nc6 3. Bb5 f5

(Siesta Variation)

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 d6 5. c3 f5

(Steinitz Defense)

1. e4 e5 2. Nf3 Nc6 3. Bb5 d6

(Vinogradov)

1. e4 e5 2. Nf3 Nc6 3. Bb5 Qe7

(Worrall Attack)

1. e4 e5 2. Nf3 Nc6 3. Bb5 a6 4. Ba4 Nf6 5. O-O Be7 6. Qe2

1. Nf3 d5 2. b4

1. c3

1. e4 e5 2. Nf3 Nc6 3. d4

(Goring Gambit)

1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Bb5

(Relfsson)

1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Bb5

(Scotch Gambit)

1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Bc4

1. d4 Nf6 2. c4 e6 3. Bg5

1. e4 c5

(Action Extension)

1. e4 c5 2. Nf3 g6 3. c4 Bh6

(Boleslavsky Variation)

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Be2 e5

(Chameleon)

1. e4 c5 2. Ne2, 3) Nbc2 or 2) Nc3, 3) Nge2

(Closed Variation)

1 e4 c5 2. Nc3

(Dragon Variation)

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be2 Bg7 7 O-O O-O 8. Be3 Nc6 9. f4 Qb6 10. e5

(Dragon Variation-Zollner)

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be2 Bg7 7. O-O O-O 8. Be3 Nc6 9. f4 Qb6 10. e5

(Dragon-Accelerated)

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6

(Dragon-Classical)

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be2

(f4 Attack)

1. e4 c5 2. f4

(Four Knights Variation)

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6

(Goteborg Variation)

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 Nc6

(Kan Variation)

see Sicilian Defense (Paulsen)

(Keres Attack)

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. g4

(Larsen Grand Prix)

see Sicilian Defense (f4 Attack)

(Larsen Variation)

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Bg5 Bd7

(Lasker-Pelikan Variation)

see Sicilian Defense (Sveshnikov)

(Levenfish Variation)

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. f4

(Lowenthal Variation)

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 e5

(Maróczy Bind)

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 g6 5. c4

(Morra Gambit)

1. e4 c5 2. d4 cxd4 3. c3

(Morra Gambit-Accepted)

1. e4 c5 2. d4 cxd4 3. c3 dxc3

(Morra Gambit-Declined)

1. e4 c5 2. d4 cxd4 3. c3 anything but 3)...dxc3

Najdorf Variation)

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6

(Najdorf Variation-poisoned pawn)

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. f4 Qb6 8. Qd2 Qxb2

(Neo-Sveshnikov Variation)

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 e5 5. Ndb5 db

(Paulsen Variation)

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 a6

(Polugaevsky Variation)

1. e4 c5 2. Nf3 d6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 a6 6. Bg5 e6 7. f4 b5

(Quinteros Variation)

1. e4 c5 2. Nf3 Qc7

(Reversed)

1. c4 e5

(Richter-Rauser Variation)

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Bg5

(Rossolimo Attack)

1. e4 c5 2. Nf3 Nc6 3. Bb5

(Scheveningen Variation)

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Be2 Nc6

(Slow)

1. e4 c5 2. Be2

(Smith-Morra Gambit)

see Sicilian Defense (Morra Gambit)

(Snyder Variation)

1. e4 c5 2. b3

(Sozin)

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Bc4

(Stiletto Variation)

1. e4 c5 2. Nf3 Qa5

(Sveshnikov Variation)

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 e5

(Taimanov Variation)

1. e4 c5 2. Nf3 e6 3. d4 cxd4 4. Nxd4 Nc6

(Velimirovic Attack)

1. e4 c5 2. Nf3 Nc6 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 d6 6. Bc4 e6 7. Be3 Be7 8. Qe2

(Wing Gambit)

1. e4 c5 2. b4

(Wing Gambit-Marshall Variation)

1. e4 c5 2. b4 cxb4 3. a3

(Yugoslav Attack)

1. e4 c5 2. Nf3 d5 3. d4 cxd4 4. Nxd4 Nf6 5. Nc3 g6 6. Be3 Bg7 7. f3

1. b4

see Ruy Lopez

1. g4

1. e4 a6 2. d4 b5

1. e4 e5 2. Nf3 Nc6 3. Be2

see Abonyi Gambit

1. e4 e5 2. Nf3 Nc6 3. Nc3

1. d4 Nf6 2. Nf3 e6 3. Bg5

1. d4 Nf6 2. Bg5

1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6

(Canal Variation)

1. e4 e5 2. Nf3 Nf6 3. Bc4 Nf6 4. d4 exd4 5. O-O Nxe4 6. Re1 d5 7. Nc3

(Fried Liver Attack)

1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Ng5 d5 5. exd5 6. Nxf7

(Fritz Variation)

1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Ng5 d5 5. exd5 Nd4

(Max Lange Attack)

1. e4 d5 2. Nf3 Nc6 3. Bc4 Nf6 4. d4 exd4 5. O-O Bc5 6. e5

(Pinkus Variation)

1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Ng5 d5 5. exd5 Nxd5 6. d4 Bb4+

(Traxler Variation)

see Two Knights Defense (Wilkes-Barre Variation)

(Ulvestad Variation)

1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Ng5 d5 5. exd5 b5

(Wilkes-Barre Variation)

1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Ng5 Bc5

(Lolli)

1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 4. Ng5 d5 5. exd5 Nxd5 6. d4

1. e3

d3, Nc3, g3

1. e4 e5 2. Nc3

(Frankenstein-Dracula)

1. e4 e5 2. Nc3 Nf6 3. Bc4 Nxe4 4. Qh5 Nd 5. Bd3 Nc6 6. Nb5 g6 7. Qf3 f5 8. Qd5 Qe7 9. Nxc7+ Kd8 10. Nxa8

(Fyfe)

1. e4 e5 2. Nc3 Nc6 3. d4

(Hamppe-Allgaier Gambit)

1. e4 e5 2. Nc3 Nc6 3. f4 exf4 4. Nf3 g5 5. h4 g4 6. Ng5

(Hamppe-Muzio)

1. e4 e5 2. Nc3 Nc6 3. f4 exf4 4. Nf3 g5 5. Bc4 g4 6. O-O

(Pierce Gambit)

1. e4 e5 2. Nc3 Nc6 3. f4 exf4 4. Nf3 g5 5. d4

(Steinitz Gambit)

1. e4 e5 2. Nc3 Nc6 3. f4 exf4 4. d4 Qh4+ 5. Ke2

(Vienna Gambit)

1. e4 e5 2. Nc3 Nf6 3. f4

1. d4 c5 2. d5 Nf6 3. c4 Ne4

1. d4 c5 2. d5 Nf6 3. Nc3 Qa5