Chess

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Laws of Chess

Openings

Abonyi Gambit (aka Lvov Gambit or Polish Gambit or Tennyson Gambit)
1. Nf3 d5
2. e4.

Alapin's Opening
1. e4 e5
2. Ne2.

Alekhine's Defense
1. e4 Nf6.

Alekhine's Defense / Alekhine's Variation for White
1.e4 Nf6
2.e5 Nd5
3.d4 d6
4.Nf3 Bg4
5.c4.

Alekhine's Defense / Exchange Variation
1.e4 Nf6
2.e5 Nd5
3.c4 Nc6
4.d4 d6
5.exd6.

Alekhine's Defense / Four Pawns Attack
1.e4 Nf6
2.e5 Nd5
3.d4 d6
4.c4 Nc6
5.f4.

Alekhine's Defense / Larsen Variation
1.e4 Nf6
2.e5 Nd5
3.d4 d6
4.Nf3 dxe5.

Alekhine's Defense / Panov Variation
1.e4 Nf6
2.e5 Nd5
3.d4 d6
4.Nf3 Bg4
5.h3.

Alekhine's Defense / Tartakower Variation
1.e4 Nf6
2.e5 Nd5
3.d4 d6
4.c4 Nb6
5.f4 dxe5
6.fxe5 Nc6
7.Be3 Bf5
8.Nc3 e6
9.Nf3 Qd7.

Alekhine's Defense / Trifunovic Variation
1.e4 Nf6
2.e5 Nd5
3.d4 d6
4.c4 Nb6
5.f4 Bf5.

Anderssen's Opening
1. e3.

Balogh's Defense
1. e4 d6
2. d4 f5.

Benko Gambit (aka Volga Gambit)
1. d4 Nf6
2. c4 c5
3. d5 b5
4. cxb5 a6
5. bxa6 Bxa6.

Benko Opening (aka King's Fianchetto Opening)
1. g3.

Benoni Defense
1.d4 Nf6
2.c4 c5
3.d5 e6.
4.Nc3 exd5
5.cxd5 d6
6.e4 g6
7.Nf3 Bg7
8.Be2 0-0
9.0-0.

Benoni Defense / Fianchetto Variation
1.d4 Nf6
2.c4 c5
3.d5 e6.
4.Nc3 exd5
5.cxd5 d6
6.Nf3 g6
7.g3.

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

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

Bird's Opening
1. f4.

Bishop's Opening
1.e4 e5
2.Bc4.

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

Bogoljubow Defense (aka Bogoljubow-Indian Defense or Bogo-Indian Defense)
1.d4 Nf6
2.c4 e6
3.Nf3 Bb4+.

Caro-Kann Defense
1. e4 c6.

Caro-Kann Defense / Advance Variation
1.e4 c6
2.d4 d5
3.e5.

Caro-Kann Defense / Breyer Variation
1.e4 c6
2.d3.

Caro-Kann Defense / Classical System
1.e4 c6
2.d4 d5
3.Nc3 dxe4
4.Nxe4 Bf5.

Caro-Kann Defense / English Variation
1.e4 c6
2.c4.

Caro-Kann Defense / Exchange Variation
1.e4 c6
2.d4 d5
3.exd5 cxd5.

Caro-Kann Defense / Gurgenidze System
1.e4 c6
2.d4 d5
3.Nc3 g6.

Caro-Kann Defense / Panov-Botvinnik Attack
1.e4 c6
2.d4 d5
3.exd5 cxd5
4.c4 Nf6.

Caro-Kann Defense / Tartakower Variation
1.e4 c6
2.d4 d5
3.Nc3 dxe4
4.Nxe4 Nf6
5. Nxf6+ exf.

Caro-Kann Defense / Two Knights Variation
1.e4 c6
2.Nc3 d5
3.Nf3.

Catalan Opening
1.d4 Nf6
2.c4 e6
3.g3.

Center Counter Defense (aka Scandinavian Defense)
1. e4 d5.

Damiano's Defense
1.e4 e5
2.Nf3 f6.

Danish Gambit
1. e4 e5
2. d4 exd4
3. c3.

Dory's Defense
1.d4 Nf6
2.c4 e6
3.Nf3 Ne4.

English Opening
1. c4.

English Opening / English Defense
1.c4 e6
2.d4 b6.

English Opening / English Four Knights
1.c4 e5
2.Nc3 Nf6
3.Nf3 Nc6.

English Opening / English Two Knights
1.c4 e5
2.Nf3 Nf6
3.d4 cxd4
4.Nxd4.

English Opening / Exchange Variation
1.c4 Nf6
2.Nc3 d5
3.cxd5 Nxd5.

English Opening / Keres-Parma System
1.c4 c5
2.Nc3 Nf6
3.g3 e6
4.Nf3 Nc6.

English Opening / Symmetrical Variation
1.c4 c5
2.Nc3 Nc6
3.g3 g6
4.Bg2 Bg7.

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

Four Knights Game
1. e4 e5
2. Nf3 Nc6
3. Nc3 Nf6.

Four Knights Game / Belgrade Gambit
1.e4 e5
2.Nf3 Nc6
3.Nc3 Nf6
4.d4 exd4
5.Nd5.

Four Knights Game / Marøczy System
1.e4 e5
2.Nf3 Nc6
3.Nc3 Nf6
4.Bb5 Bb4
5.0-0 0-0
6.d3 d6
7.Ne2.

French Defense
1. e4 e6.

French Defense / Advance Variation
1.e4 e6
2.d4 d5
3.e5.

French Defense / Albin-Chatard Attack
1.e4 e6
2.d4 d5
3.Nc3 Nf6
4.Bg5 Be7
5.e5 Nfd7
6.h4.

French Defense / Alekhine Variation
1.e4 e6
2.d4 d5
3.Nc3 Nf6
4.Nge2.

French Defense / Alekhine-Chatard Attack
1.e4 e6
2.d4 d5
3.Nc3 Nc6
4.Bg5 Be7
5.e5 Nfd7
6.h4.

French Defense / Anderssen Attack
1.e4 e6
2.d4 d5
3.Nc3 Nf6
4.Bg5 Be7
5.Bxf6 Bxf6
6.e5 Be7
7.Qg4.

French Defense / Bogoljubow Variation
1.e4 e6
2.d4 d5
3.Nc3 Bb4
4.e5 c5
5.Bd2.

French Defense / Burn Variation
1.e4 e6
2.d4 d5
3.Nc3 Nf6
4.Bg5 dxe4.

French Defense / Exchange Variation
1.e4 e6
2.d4 d5
3.exd5 exd5.

French Defense / Exchange Winawer
1.e4 e6
2.d4 d5
3.Nc3 Nf6
4.Bg5.

French Defense / Guimard Variation
1.e4 e6
2.d4 d5
3.Nd2 Nc6.

French Defense / MacCutcheon Variation
1.e4 e6
2. d4 d5
3.Nc3 Nf6
4. Bg5 Bb4.

French Defense / 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.Nc3 Nxd4
9.Nxd4 Qxd4
10.0-0.

French Defense / Müller-Zhuravlev Gambit
1.e4 e6
2.d4 d5
3.Nc3 Nf6
4.Bd2.

French Defense / Rubinstein System
1.e4 e6
2.Nf3 d5
3.Nc3 d4.

French Defense / Winawer Variation (sometimes called Nimzowitsch Variation)
1.e4 e6
2.d4 d5
3.Nc3 Bb4.

French Defense / Svenonius Variation
1.e4 e6
2.d4 d5
3.exd5 exd5
4.Nc3 Nf6.

French Defense / Swiss Variation
1.e4 e6
2.d4 d5
3.Nc3 Bb4
4.e5 c5
5.a3 Ba5.

French Defense / Tarrasch Variation
1.e4 e6
2.d4 d5
3.Nd2.

French Defense / Wade Variation
1.e4 e6
2.d4 d5
3.e5 c5
4.c3 Qb6
5.Nf3 Bd7.

From Gambit
1. f4 e5.

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

Grünfeld Defense / Boleslavsky System
1.d4 Nf6
2.c4 g6
3.Nc3 d5
4.Nf3 Bg7
5.Qb3 dxc4
6.Qxc4 0-0
7.e4 c6.

Grünfeld Defense / Exchange Variation
1.d4 Nf6
2.c4 g6
3.Nc3 d5
4.cxd5 Nxd5
5.e4.

Grünfeld Defense / Russian System
1.d4 Nf6
2.c4 g6
3.Nc3 d5
4.Qb3.

Grünfeld Defense / Simagin’s Improved Variation
1.d4 Nf6
2.c4 g6
3.Nc3 d5
4.cxd5 Nxd5
5.e4 Nxc3
6.bxc3 Bg7
7.Bc4 0-0
8.Ne2 Nc6.

Grünfeld Defense / Simagin’s Lesser Variation
1.d4 Nf6
2.c4 g6
3.Nc3 d5
4.cxd5 Nxd5
5.e4 Nxc3
6.bxc3 Bg7
7.Bc4 0-0
8.Ne2 b6.

Grünfeld Defense / Smyslov System
1.d4 Nf6
2.c4 g6
3.g3 Bg7
4.Nf3 Bg7
5.Qb3.

King's Gambit
1.e4 e5
2.f4.

King's Gambit / Allgaier Gambit
1.e4 e5
2.f4 exf4
3.Nf3 g5
4.h4 g4
5.Ng5.

King's Gambit / Anti-Kieseritzky System
1.e4 e5
2.f4 exf4
3.Nf3 h6.

King's Gambit / Berlin Defense
1.e4 e5
2.f4 exf4
3.Nf3 g5
4.h4 g4
5.Ne5 Nf6.

King's Gambit / Breyer Gambit
1.e4 e5
2.f4 exf4
3.Qf3.

King's Gambit / Classical Defense
1.e4 e5
2.f4 exf4
3.Nf3 g5.

King's Gambit / Cunningham Gambit
1.e4 e5
2.f4 exf4
3.Nf3 Be7.

King's Gambit / Falkbeer Counter Gambit
1.e4 e5
2.f4 d5.

King's Gambit / Ghulam-Kassim Gambit
1.e4 e5
2.f4 exf4
3.Nf3 g5
4.Bc4 g4
5.d4.

King's Gambit / Green Variation
1.e4 e5
2.f4 exf4
3.Nf3 g5
4.h4 g4
5.Ne5 d6.

King's Gambit / Keres Gambit (aka Mason Gambit)
1.e4 e5
2.f4 exf4
3.Nc3.

King's Gambit / Kieseritzky Gambit
1.e4 e5
2.f4 exf4
3.Nf3 g5
4.h4 g4
5.Ne5.

King's Gambit / King's Bishop Gambit
1.e4 e5
2.f4 exf4
3.Bc4.

King's Gambit / King's Knight Gambit
1.e4 e5
2.f4 exf4
3.Nf3.

King's Gambit / MacDonnell Gambit
1.e4 e5
2.f4 exf4
3.Nf3 g5
4.Nc3 g4
5.Bc4.

King's Gambit / Muzio Gambit
1.e4 e5
2.f4 exf4
3.Nf3 g5
4.Bc4 g4
5.0-0.

King's Gambit / Philidor Gambit
1.e4 e5
2.f4 exf4
3.Nf3 g5
4.Bc4 Bg7
5.h4.

King's Gambit / Rice Gambit
1.e4 e5
2.f4 exf4
3.Nf3 g5
4.h4 g4
5.Ne5 Nf6
6.Bc4 d5
7.exd Bd6
8.d4.

King's Gambit / Salvio Gambit
1.e4 e5
2.f4 exf4
3.Nf3 g5
4.Bc4 g4
5.Ne5.

King's Gambit / Scandinavian Variation
1.e4 e5
2.f4 exf4
3.Nf3 d5.

King's Gambit Declined
1.e4 e5
2.f4 Bc5.

King's Indian Defense
1.d4 Nf6
2.c4 g6
3.g3 Bg7
4.Bg2 0-0
5.Nc3 d6
6.Nf3.

King's Indian Defense / Averbakh Variation
1.d4 Nf6
2.c4 g6
3.Nc3 Bg7
4.e4 d6
5.Be2 0-0
6.Bg5.

King's Indian Defense / Classical Line
1.d4 Nf6
2.c4 g6
3.Nc3 Bg7
4.e4 d6
5.Nf3 0-0
6.Be2 e5
7.0-0.

King's Indian Defense / Exchange Yugoslav Variation
1.d4 Nf6
2.c4 g6
3.Nc3 Bg7
4.Nf3 d6
5.g3 0-0
6.Bg2 c5
7.0-0 Nc6
8.dxc5 dxc5.

King's Indian Defense / Fianchetto Variation
1.d4 Nf6
2.c4 g6
3.Nc3 Bg7
4.Nf3 d6
5.g3 0-0
6.Bg2.

King's Indian Defense / Four Pawns Attack
1.d4 Nf6
2.c4 g6
3.Nc3 Bg7
4.e4 d6
5.f4 0-0.

King's Indian Defense / Makagonov System
1.d4 Nf6
2.c4 g6
3.Nc3 Bg7
4.e4 d6
5.h3.

King's Indian Defense / Mar del Plata Variation
1.d4 Nf6
2.c4 g6
3.Nc3 Bg7
4.e4 d6
5.Nf3 0-0
6.Be2 e5
7.0-0 Nc6
8.d5.

King's Indian Defense / Panno
1.d4 Nf6
2.c4 g6
3.Nc3 Bg7
4.Nf3 d6
5.g3 0-0
6.Bg2 Nc6
7.0-0 a6.

King's Indian Defense / Petrosyan System
1.d4 Nf6
2.c4 g6
3.Nc3 Bg7
4.e4 d6
5.Nf3 0-0
6.Be2 e5
7.d5.

King's Indian Defense / Smyslov System
1.d4 Nf6
2.c4 g6
3.Nc3 Bg7
4.Nf3 d6
5.Bg5.

King's Indian Defense / Sämisch Variation
1.d4 Nf6
2.c4 g6
3.Nc3 Bg7
4.e4 d6
5.f3.

Légal's Mate
1.e4 e5
2.Bc4 d6
3.Nf3 Bg4
4.Nc3 g6
5.Nxe5 Bxd1
6.Bxf7+ Ke7
7. Nd5 mate.

Neo-Grünfeld Defense
1.d4 Nf6
2.c4 g6
3.g3 Bg7
4.Bg2 d5
5.cxd5 Nxd5.

Nimzo-Indian Defense
1. d4 Nf6
2. c4 e6
3. Nc3 Bb4.

Nimzo-Indian Defense / Botvinnik Variation
1.d4 Nf6
2.c4 e6
3.Nc3 Bb4
4.Qc2 d5
5.a3 Bxc3+
6.Qxc3 Nc6.

Nimzo-Indian Defense / Classical Variation
1.d4 Nf6
2.c4 e6
3.Nc3 Bb4
4.Qc2.

Nimzo-Indian Defense / Hübner Variation
1.d4 Nf6
2.c4 e6
3.Nc3 Bb4
4.e3 c5.

Nimzo-Indian Defense / Leningrad Variation
1.d4 Nf6
2.c4 e6
3.Nc3 Bb4
4.Bg5.

Nimzo-Indian Defense / Nimzowitsch Line
1.d4 Nf6
2.c4 e6
3.Nc3 Bb4
4.e3 b6.

Nimzo-Indian Defense / Pirc Variation
1.d4 Nf6
2.c4 e6
3.Nc3 Bb4
4.Qd2 c5
5.dxc5 0-0.

Nimzo-Indian Defense / Rubinstein
1.d4 Nf6
2.c4 e6
3.Nc3 Bb4
4.e3.

Nimzo-Indian Defense / Spielmann Variation
1.d4 Nf6
2.c4 e6
3.Nc3 Bb4
4.Qb3.

Nimzo-Indian Defense / Sämisch Variation
1.d4 Nf6
2.c4 e6
3.Nc3 Bb4
4.a3.

Nimzo-Indian Defense / Taimanov Variation
1.d4 Nf6
2.c4 e6
3.Nc3 Bb4
4.e3 Nc6.

Nimzo-Indian Defense / Zürich Variation
1.d4 Nf6
2.c4 e6
3.Nc3 Bb4
4.Qc2 Nc6.

Nimzowitsch Attack (aka Larsen Attack or Queen's Fianchetto Opening)
1.b3.

Nimzowitsch Defense
1. e4 Nc6.

Petroff's Defense
1.e4 e5
2.Nf3 Nf6.

Petroff's Defense / Boden's Gambit
1.e4 e5
2.Nf3 Nf6
3.Bc4 Nxe4
4.Nc3.

Petroff's Defense / Cochrane's Gambit
1.e4 e5
2.Nf3 Nf6
3.Nxe5 d6
4.Nxf7.

Petroff's Defense / Damiano Variation
1.e4 e5
2.Nf3 Nf6
3.Nxe5 Nxe4.

Petroff's Defense / Lopez Variation
1.e4 e5
2.Nf3 Nf6
3.Nxe5 Qe7.

Petroff's Defense / Pillsbury Variation
1.e4 e5
2.Nf3 Nf6
3.d4 exd4
4.e5 Ne4
5.Qxd4 d5
6.exd5 Nxd6
7.Nc3 Nc6
8.Qf4 Bf5.

Petroff's Defense / Steinitz Variation
1.e4 e5
2.Nf3 Nf6
3.d4 exd4
4.e5 Ne4
5.Qe2.

Philidor's Defense
1.e4 e5
2.Nf3 d6.

Pirc Defense
1. e4 d6
2. d4 Nf6
3. Nc3 g6.

Pirc Defense / Austrian Attack
1.e4 d6
2.d4 Nf6
3.Nc3 g6
4.f4.

Pirc Defense / Chinese Variation
1.e4 d6
2.d4 Nf6
3.Nc3 g6
4.Be2 Bg7
5.g4.

Pirc Defense / Classical Variation
1.e4 d6
2.d4 Nf6
3.Nc3 g6
4.Nf3 Bg7
5.Be2.

Pirc Defense / Opatija Variation (aka Panov Variation)
1.e4 d6
2.d4 Nf6
3.Nc3 g6
4. Bg5.

Polish Defense
1.d4 Nf6
2.Nf3 b5.

Polish Opening (aka Orangutan or Sokolsky's Opening)
1.b4.

Ponziani's Opening
1.e4 e5
2.Nf3 Nc6
3.c3.

Queen's Gambit
1.d4 d5
2.c4.

Queen's Gambit / Albin Counter-Gambit
1.d4 d5
2.c4 e5
3.dxe5 d4.

Queen's Gambit / Chigorin Defense
1.d4 d5
2.c4 Nc6.

Queen's Gambit / Mannheim Variation
1.d4 d5
2.c4 dxc4
3.Nf3 Nf6
4.Qa4+.

Queen's Gambit / Westphalia Defense
1.d4 d5
2.c4 e6
3.Nf3 Nf6
4.Nc3 Nbd7
5.Bg5 Bb4
6.cxd5 exd5
7.e3 c5.

Queen's Gambit Declined
1.d4 d5
2.c4 e6.

Queen's Gambit Declined / Anti-Neo-Orthodox Variation
1.d4 d5
2.c4 e6
3.Nc3 Nf6
4.Bg5 Be7
5.e3 0-0
6.Rc1 h6
7.Bh4.

Queen's Gambit Declined / Canal's Variation
1.d4 d5
2.c4 e6
3.Nc3 Nf6
4.Bg5 c5
5.cxd5 Qb6.

Queen's Gambit Declined / Exchange Variation
1.d4 d5
2.c4 e6
3.Nc3 Nf6
4.cxd5 exd5.

Queen's Gambit Declined / Lasker Defense
1.d4 d5
2.c4 e6
3.Nc3 Nf6
4.Bg5 Be7
5.e3 0-0
6.Nf3 h6
7.Bh4 Ne4.

Queen's Gambit Declined / Lasker's Defense
1.d4 d5
2.c4 e6
3.Nc3 Nf6
4.Bg5 Be7
5.e3 0-0
6.Nf3 h6
7.Bh4 Ne4
8.Bxe7 Qxe7.

Queen's Gambit Declined / Makagonov-Bondarevsky (aka Tartakower System)
1.d4 d5
2.c4 e6
3.Nc3 Nf6
4.Bg5 Be7
5.e3 0-0
6.Nf3 h6
7.Bh4 b6.

Queen's Gambit Declined / Manhattan Variation
1.d4 d5
2.c4 e6
3.Nc3 Nf6
4.Bg5 Nbd7
5.Nf3 Bb4.

Queen's Gambit Declined / Marshall Defense
1.d4 d5
2.c4 Nf6.

Queen's Gambit Declined / Orthodox Variation
1.d4 d5
2.c4 e6
3.Nc3 Nf6
4.Bg5 Be7
5.e3 0-0
6.Nf3 Nbd7.

Queen's Gambit Declined / Pillsbury Attack
1.d4 d5
2.c4 e6
3.Nc3 Nf6
4.Bg5 Be7
5.e3 0-0
6.Nf3 Nbd7
7.Qc2 b6
8.cxd5 exd5
9.Bd3 Bb7
10.0-0 a6
11.Ne5 c5
12.f4.

Queen's Gambit Declined / Ragozin
1.d4 d5
2.c4 e6
3.Nc3 Nf6
4.Nf3 Bb4.

Queen's Gambit Declined / 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.

Queen's Indian Defense (aka Neo-Indian Defense)
1. d4 Nf6
2. c4 e6
3. Nf3 b6.

Queen's Indian Defense / Marienbad System
1.d4 Nf6
2.Nf3 b6
3.g3 Bb7
4.Bg2 c5.

Queen's Pawn Counter-Gambit
1.e4 e5
2.Nf3 d5.

Reti's Opening
1. Nf3 d5.

Reti's Opening / Alfred Wolf Gambit (aka Landstrasse Gambit)
1.Nf3 d5
2.c4.

Reti's Opening / Reti Gambit
1.Nf3 d5
2.b4.

Richter Attack
1.d4 Nf6
2.Nc3 d5
3.Bg5.

Ruy Lopez (aka Spanish Game)
1. e4 e5
2. Nf3 Nc6
3. Bb5.

Ruy Lopez / Alapin's Defense
1.e4 e5
2.Nf3 Nc6
3.Bb5 Bb4.

Ruy Lopez / Anti-Marshall
1.e4 e5
2.Nf3 Nc6
3.Bb5 a6
4.Ba4 Nf6
5.0-0 Be7
6.Re1 b5
7.Bb3 0-0
8.a4.

Ruy Lopez / Archangelsk Variation
1.e4 e5
2.Nf3 Nc6
3.Bb5 a6
4.Ba4 Nf6
5.d4 b5.

Ruy Lopez / Baguio Variation
1.e4 e5
2.Nf3 Nc6
3.Bb5 a6
4.Ba4 Nf6
5.0-0 Nxe4
6.d4 b5
7.Bb3 d5
8.dxe5 Be6
9.c3 Bc5
10.Nbd2 0-0
11.Bc2 Bf5.

Ruy Lopez / Bird's Defense
1.e4 e5
2.Nf3 Nc6
3.Bb5 Nd4.

Ruy Lopez / Breslau Variation
1.e4 e5
2.Nf3 Nc6
3.Bb5 a6
4.Ba4 Nf6
5.0-0 Nxe4
6.d4 b5
7.Bb3 d5
8.dxe5 Be6
9.c3 Be7
10.Re1 0-0
11.Nd4 Nxe5.

Ruy Lopez / Breyer Variation
1.e4 e5
2.Nf3 Nc6
3.Bb5 a6
4.Ba4 Nf6
5.0-0 Be7
6.Re1 b5
7.Bb3 d6
8.c3 0-0
9.h3 Nb8.

Ruy Lopez / Chigorin Defense
1.e4 e5
2.Nf3 Nc6
3.Bb5 a6
4. Ba4 Nf6
5.0-0 Be7
6.Re1 b5
7.Bb3 d6
8.c3 0-0
9.h3 Na5
10.Bc2 c5
11.d4 Qc7.

Ruy Lopez / Classical Defense
1.e4 e5
2.Nf3 Nc6
3.Bb5 Bc5.

Ruy Lopez / Closed Defense
1.e4 e5
2.Nf3 Nc6
3.Bb5 a6
4.Ba4 Nf6
5.0-0 Be7
6.Re1 b5
7.Bb3 d6
8.c3 0-0
9.h3.

Ruy Lopez / Cozio Defense
1.e4 e5
2.Nf3 Nc6
3.Bb5 Nge7.

Ruy Lopez / Ekstrom Variation
1.e4 e5
2.Nf3 Nc6
3.Bb5 a6
4.Ba4 Nf6
5.0-0 Nxe4
6.d4 b5
7.Bb3 d5
8.dxe5 Be6
9.Qe2 Be7
10.Rd1 0-0
11.c4 bxc4
12.Bxc4 Qd7.

Ruy Lopez / Exchange Variation
1.e4 e5
2.Nf3 Nc6
3.Bb5 a6
4.Bxc6.

Ruy Lopez / Fianchetto Defense
1.e4 e5
2.Nf3 Nc6
3.Bb5 g6.

Ruy Lopez / Jänisch Defense (aka Schliemann Defense)
1.e4 e5
2.Nf3 Nc6
3.Bb5 f5.

Ruy Lopez / Kholmov's Line
1.e4 e5
2.Nf3 Nc6
3.Bb5 a6
4.Ba4 Nf6
5.0-0 Be7
6.Re1 b5
7.Bb3 d6
8.c3 0-0
9.h3 Be6.

Ruy Lopez / Marshall Attack
1.e4 e5
2.Nf3 Nc6
3.Bb5 a6
4.Ba4 Nf6
5.0-0 Be7
6.Re1 b5
7.Bb3 0-0
8.c3 d5.

Ruy Lopez / Marshall Counterattack
1.e4 e5
2.Nf3 Nc6
3.Bb5 a6
4.Ba4 Nf6
5.0-0 Be7
6.Re1 b5
7.Bb3 0-0
8.c3 d5.

Ruy Lopez / Morphy's Defense
1.e4 e5
2.Nf3 Nc6
3.Bb5 a6.

Ruy Lopez / Motzko Variation
1.e4 e5
2.Nf3 Nc6
3.Bb5 a6
4.Ba4 Nf6
5.0-0 Nxe4
6.d4 b5
7.Bb3 d5
8.dxe5 Be6
9.c3 Bc5
10.Qd3.

Ruy Lopez / Nuremberg Variation
1.e4 e5
2.Nf3 Nc6
3.Bb5 f6.

Ruy Lopez / Open Defense (aka Tarrasch Defense)
1.e4 e5
2.Nf3 Nc6
3.Bb5 a6
4.Ba4 Nf6
5.0-0 Nxe4.

Ruy Lopez / Riga Variation
1.e4 e5
2.Nf3 Nc6
3.Bb5 a6
4.Ba4 Nf6
5.0-0 Nxe4
6.d4 exd4.

Ruy Lopez / Smyslov Defense
1.e4 e5
2.Nf3 Nc6
3.Bb5 g6.

Ruy Lopez / Symslov's System
1.e4 e5
2.Nf3 Nc6
3.Bb5 a6
4.Ba4 Nf6
5.0-0 Be7
6.Re1 b5
7.Bb3 d6
8.c3 0-0
9.h3 h6.

Ruy Lopez / Steinitz Defense
1.e4 e5
2.Nf3 Nc6
3.Bb5 d6.

Ruy Lopez / Steinitz Defense Deferred
1.e4 e5
2.Nf3 Nc6
3.Bb5 a6
4.Ba4 d6.

Scotch Game
1.e4 e5
2.Nf3 Nc6
3.d4 exd4.

Scotch Game / Mieses Variation
1.e4 e5
2.Nf3 Nc6
3.d4 exd4
4.Nxd4 Nf6
5.Nxc6 bxc6
6.e5.

Scotch Game / Romanishin Variation
1.e4 e5
2.Nf3 Nc6
3.d4 exd4
4.Nxd4 Bc5
5.Nb3 Bb4+.

Scotch Game / Steinitz Variation
1.e4 e5
2.Nf3 Nc6
3.d4 exd4
4.Qh4.

Semi-Slav Defense
1. d4 d5
2. c4 c6
3. Nf3 Nf6
4. Nc3 e6
5. e3 Nbd7
6. Bd3 dxc4
7. Bxc4 b5
8. Bd3.

Semi-Slav Defense / Abrahams Variation
1.d4 d5
2.c4 c6
3.Nc3 e6
4.Nf3 dxc4.

Semi-Slav Defense / Meran Variation
1.d4 d5
2.c4 c6
3.Nf3 Nf6
4.Nc3 e6
5.e3 Nbd7
6.Bd3 dxc4
7.b5.

Semi-Slav Defense / Anti-Meran System
1.d4 d5
2.c4 c6
3.Nf3 NNf6
4.Nc3 e6.

Semi-Slav Defense / Marshall Gambit
1.d4 d5
2.c4 c6
3.Nc3 e6
4.e4.

Sicilian Defense
1. e4 c5.

Sicilian Defense / Accelerated Fianchetto
1.e4 c5
2.Nf3 Nc6
3.d4 cxd4
4.Nxd4 g6.

Sicilian Defense / Alapin Attack (aka Alapin-Sveshnikov Variation)
1.e4 c5
2.c3.

Sicilian Defense / Bird Variation
1.e4 c5
2.Nf3 Nc6
3.d4 cxd4
4.Nxd4 Nf6
5.Nc3 e5
6.Ndb5 d6
7.Bg5 a6
8.Na3 Be6.

Sicilian Defense / Boleslavsky Variation
1.e4 c5
2.Nf3 Nc6
3.d4 cxd4
4.Nxd4 Nf6
5.Nc3 d6
6.Be2 e5.

Sicilian Defense / Chelyabinsk Variation
1.e4 c5
2.Nf3 Nc6
3.d4 cxd4
4.Nxd4 Nf6
5.Nc3 e5
6.Ndb5 d6
7.Bg5 a6
8.Na3 b5.

Sicilian Defense / Closed Sicilian
1.e4 c5
2.Nc3 Nc6
3.g3.

Sicilian Defense / Dragon Variation
1.e4 c5
2.Nf3 d6
3.d4 cxd4
4.Nxd4 Nf6
5.Nc3 g6.

Sicilian Defense / Four Knights Sicilian
1.e4 c5
2.Nf3 e6
3.d4 cxd4
4.Nxd4 Nf6
5.Nc3 Nc6.

Sicilian Defense / Lasker-Pelikan Sicilian (aka Sveshnikov Sicilian)
1.e4 c5
2.Nf3 Nc6
3.d4 cxd4
4.Nd4 Nf6
5.Nc3 e5.

Sicilian Defense / Löwenthal Variation
1.e4 c5
2.Nf3 Nc6
3.d4 cxd4
4.Nxd4 e5.

Sicilian Defense / Magnus Smith Trap
1.e4 c5
2.Nf3 Nc6
3.d4 cxd4
4.Nxd4 Nf6
5.Nc3 g6
6.Bc4 d6
7.Nxc6 bxc6
8.e5.

If Black plays:
8...dxe5

the queen may be lost after:
9.Bxf7+ Kxf7
10.Qxd8.

Sicilian Defense / Morra Gambit
1.e4 c5
2.d4 cxd4
3.c3.

Sicilian Defense / Najdorf Variation
1.e4 c5
2.Nf3 d6
3.d4 cxd4
4.Nxd4 Nf6
5.Nc3 a6.

Sicilian Defense / Richter-Rauzer
1.e4 c5
2.Nf3 d6
3.d4 cxd4
4.Nxd4 Nf6
5.Nc3 Nc6
6.Bg5.

Sicilian Defense / Scheveningen
1.e4 c5
2.Nf3 e6
3.d4 cxd4
4.Nxd4 Nf6
5.Nc3 d6.

Sicilian Defense / Scheveningen / Classical Scheveningen
1.e4 c5
2.Nf3 e6
3.d4 cxd4
4.Nxd4 Nf6
5.Nc3 d6
6.Be2 Be7
7.0-0 0-0
8.f4.

Sicilian Defense / Scheveningen / Keres Attack
1.e4 c5
2.Nf3 e6
3.d4 cxd4
4.Nxd4 Nf6
5.Nc3 d6
6.g4 a6.

Sicilian Defense / Taimanov Sicilian
1.e4 c5
2.Nf3 e6
3.d4 cxd4
4.Nxd4 Nc6.

Sicilian Defense / Two Knight's Formation
1.e4 c5
2.Nf3 d6
3.d4 cxd4
4.Nxd4 Nf6
5.Nc3 Nc6.

Sicilian Defense / Velimirovic Attack (aka Sozin Attack)
1.e4 c5
2.Nf3 d6
3.d4 cxd4
4.Nxd4 Nf6
5.Nc3 Nc6
6.Bc4.

Slav Accepted
1. d4 d5
2. c4 c6
3. Nf3 Nf6
4. Nc3 dxc4
5. a4 Bf5
6. e3.

Slav Defense
1. d4 d5
2. c4 c6.

Slav Defense / Accelerated Meran
1.d4 d5
2.c4 c6
3.Nf3 Nf6
4.Nc3 e6
5.e3 a6.

Slav Defense / Czech System or Czech Variation
1.d4 d5
2.c4 c6
3.Nf3 Nf6
4.Nc3 dxc4
5.a4 Bf5.

Slav Defense / Exchange Variation
1.d4 d5
2.c4 c6
3.cxd5 cxd5.

Slav Declined
1. d4 d5
2. c4 c6
3. Nf3 Nf6
4. e3.

St. George's Defense
1.e4 a6.

Stonewall System
1.d4 d5
2.e3 c5
3.c3 Nf6
4.Bd3 g6
5.f4.

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

Tarrasch Defense / Swedish Variation
1.d4 d5
2.c4 e6
3.Nc3 c5
4.cxd5 exd5
5.Nf3 Nc6
6.g3 c4.

Tarrasch Defense / von Hennig-Schara Gambit
1.d4 d5
2.c4 e6
3.Nc3 c5
4.cxd5 cxd5.

Three Knights Game
1.e4 e5
2.Nf3 Nc6
3.Nc3.

Three Knights Game / Gothic Defense
1.e4 e5
2.Nf3 Nc6
3.Nc3 f5.

Torre Attack
1.d4 Nf6
2.Nf3 e6
3.Bg5.

Two Knights Defense
1. e4 e5
2. Nf3 Nc6
3. Bc4 Nf6.

Two Knights Defense / Berliner Variation
1.e4 e5
2.Nf3 Nc6
3.Bc4 Nf6
4.Ng5 d5
5.exd5 Nd4
6.c3 b5
7.Bf1 Nxd5
8.Ne4 Qh4.

Two Knights Defense / Canal Variation
1.e4 e5
2.Nf3 Nc6
3.Bc4 Nf6
4.d4 exd4
5.0-0 Nxe4
6.Re1 d5
7.Nc3.

Two Knights Defense / Colman's Defense
1.e4 e5
2.Nf3 Nc6
3.Bc4 Nf6
4.Ng5 d5
5.exd5 Na5
6.Bb5+ c6
7.dxc6 bxc6
8.Qf3 Rb8.

Two Knights Defense / Fried Liver Attack
1.e4 e5
2.Nf3 Nc6
3.Bc4 Nf6
4.Ng5 d5
5.exd5 Nxd5
6.Nxf7 Kxf7.

Two Knights Defense / Fritz Variation
1.e4 e5
2.Nf3 Nc6
3.Bc4 Nf6
4.Ng5 Nd4.

Two Knights Defense / Polerio Variation
1.e4 e5
2.Nf3 Nc6
3.Bc4 Nf6
4.Ng5 d5
5.exd5 Na5
6.Bb5+.

Two Knights Defense / Steinitz Variation
1.e4 e5
2.Nf3 Nc6
3.Bc4 Nf6
4.d4 exd4
5.0-0 Bc5
6.e5 Ng4.

Two Knights Defense / Wilkes-Barre (aka Traxler Counterattack)
1.e4 e5
2.Nf3 Nc6
3.Bc4 Nf6
4.Ng5 Bc5.

Ufimtsev Defense
1.e4 g6
2.d4 Bg7.

Van't Kruijs Opening
1. e3.

Vienna Game
1.e4 e5
2.Nc3.

Vienna Game / Adams Gambit
1.e4 e5
2.Nc3 Nf6
3.Bc4 Nxe4
4.Qh5 Nd6
5.Bb3 Nc6
6.d4.

Vienna Game / Mengarini's Opening
1.e4 e5
2.Nc3 Nf6
3.a3.

Vienna Game / Steinitz Gambit
1.e4 e5
2.Nc3 Nc6
3.f4 exf4
4.d4.