ECO A00–A99

 

A00 Irregular Openings

A01 Nimzovich

A02-A03 Bird

A04-A09 Réti

A10-A39 English

A40 Irregular Queen's Pawn

A41-A42 Modern

A43-A44 Old Benoni

A45-A50 Indian

A51-A52 Budapest

A53-A55 Old Indian

A56 Benoni

A57-A59 Benko Gambit

A60-A79 Modern Benoni

A80-A99 Dutch

A00 Irregular Openings

A00 Amar: 1.Nh3

1.d5 2.g3 e5 3.f4 Amar: Gambit

1.d5 2.g3 e5 3.f4 Bxh3 4.Bxh3 exf4 5.0-0 fxg3 6.hxg3 Amar: Gambit (Gent)

1.d5 2.f3 e5 3.e4 f5 Amar: Paris Gambit

A00 Anderssen: 1.a3

1.g6 2.g4 Anderssen: Spike

A00 Barnes: 1.f3

1.e5 2.Kf2 Barnes: Hammerschlag

A00 Benko: 1.g3

1.h5 Benko: Lasker

1.e5 2.Nf3 Benko: Alekhine

A00 Clemenz: 1.h3

1.e5 2.a3 Clemenz: Global

1.e5 2.a3 d5 Clemenz: Global (Creepy Crawly)

A00 Desprčs: 1.h4 Despris

A00 Dunst: 1.Nc3

1.c5 2.Rb1 Dunst: Twyble

1.c5 2.d4 cxd4 3.Qxd4 Nc6 4.Qh4 Dunst: Novosibirsk

1.e5 Dunst: Nimzovich

1.e5 2.a3 Dunst: Nimzovich (Battambang)

1.e5 2.Nf3 Nc6 3.d4 Dunst: Nimzovich (Napoleon)

1.e5 2.d4 exd4 3.Qxd4 Nc6 4.Qa4 Dunst: Nimzovich (Scandinavian)

1.d5 2.e4 dxe4 3.d3 Dunst: Gambit

1.f5 2.e4 fxe4 3.d3 Dunst: Kluver

1.g6 2.h3 Dunst: Anti-Pirc

1.Nf6 2.g4 Dunst: Tübingen

A00 Durkin: 1.Na3

1.e5 2.d3 Bxa3 3.bxa3 d5 4.e3 c5 5.Rb1 Durkin: Celadon

1.g6 2.g4 Durkin: Chenoboskian

A00 Grob: 1.g4

1.d5 2.Bg2 c6 3.g5 Grob: Spike

1.d5 2.Bg2 e5 3.c4 Grob: Hurst

1.d5 2.Bg2 Bxg4 Grob: Gambit

1.d5 2.Bg2 Bxg4 3.c4 Grob: Gambit (Fritz)

1.d5 2.Bg2 Bxg4 3.c4 d4 Grob: Gambit (Romford)

1.f5 Grob: Alessi

1.g5 Grob: Symmetrical

1.e5 2.h3 Grob: Macho

1.e5 2.h3 Nc6 Grob: Macho (London)

1.e5 2.h3 d5 3.Bg2 c6 Grob: Macho (Keene)

A00 Mieses: 1.d3

1.g6 2.g4 Mieses: Spike

1.e5 Mieses: Rat

1.e5 2.Nd2 Mieses: Rat (Valencia)

1.d5 2.Nc3 Nc6 3.g3 Mieses: Venezolana

A00 Saragossa: 1.c3

A00 Sokolsky: 1.b4

1.c5 Sokolsky: Birmingham

1.Nc6 Sokolsky: Aasum

1.c6 Sokolsky: Outflank

1.e5 2.a3 Sokolsky: Bugayev

1.e5 2.Bb2 c5 Sokolsky: Wolferts

1.e5 2.Bb2 f6 3.e4 Bxb4 Sokolsky: Tartakower

1.e5 2.Bb2 f6 3.e4 Bxb4 4.Bc4 Nc6 5.f4 Qe7 6.f5 g6 Sokolsky: Tartakower (Brinckmann)

1.Nh6 Sokolsky: Tübingen Tubigen

1.Nf6 2.Bb2 g6 3.g4 Sokolsky: Spike

A00 van't Kruijs: 1.e3

A00 Ware: 1.a4

1.b5 2.axb5 Bb7 Ware: Wing Gambit

1.e5 2.h4 Ware: Crab

1.e5 2.a5 d5 3.e3 f5 4.a6 Ware: Gambit

A01 Nimzovich: 1.b3

1.b5 Nimzovich: Polish

1.f5 Nimzovich: Dutch

1.f5 2.Bb2 e6 3.e4 Nimzovich: Dutch (Ringelbach)

1.d5 Nimzovich: Classical

1.Nf6 Nimzovich: Indian

1.Nf6 2.Bb2 g6 3.g4 Nimzovich: Indian (Spike)

1.e5 Nimzovich: Modern

1.e5 2.Bb2 Nc6 3.f4 Nimzovich: Modern (Pachmann)

1.c5 Nimzovich: English

1.b6 Nimzovich: Symmetrical

 

A02-A03 Bird

A02 Bird: 1.f4

1.Nf6 2.b4 Bird: Polish

1.Nf6 2.b4 g6 3.Nf3 Bird: Polish (Batavo)

1.Nh6 Bird: Horsefly

1.g5 Bird: Hobbs

1.f5 2.e4 Bird: Wagner

1.f5 2.e4 fxe4 3.Nc3 Nf6 4.g4 Bird: Wagner (Swiss)

1.e5 Bird: From

1.e5 2.fxe5 Nc6 Bird: From (Schlechter)

1.e5 2.fxe5 d6 3.exd6 Bxd6 4.Nf3 Nh6 5.d4 Bird: From (Lipke)

1.e5 2.fxe5 d6 3.exd6 Bxd6 4.Nf3 g5 Bird: From (Lasker)

A03 Bird: Dutch: 1.f4 d5

2.e3 Nf6 3.Nf3 c5 Bird: Dutch (Lasker)

2.e3 Nf6 3.Nf3 Bg4 Bird: Dutch (Schlechter)

2.c4 Bird: Dutch (Mujannah)

2.d4 Bird: Dutch (Canard)

2.d4 f5 Bird: Dutch (Double Duck)

2.e4 Bird: Williams

2.e4 dxe4 3.d3 Bird: Williams (Prokofiev)

 

A04-A09 Réti

A04 Réti: 1.Nf3

1.c5 2.Nc3 Réti: Two Knights

1.c5 2.Nc3 Nc6 3.d4 cxd4 4.Nxd4 Réti: Two Knights (Sicilian)

1.g5 Réti: HerrströmHerrstrom

1.d6 Réti: Wade

1.d6 2.e4 Bg4 Réti: Wade (Tartakower)

1.f5 Réti: Dutch

1.f5 2.e4 Réti: Lisitsin

1.f5 2.d3 Réti: Improved Lisitsin

1.f5 2.d3 Nf6 3.e4 Réti: Lisitsin Deferred

A05 Réti: Symmetrical: 1.Nf3 Nf6

2.b3 Réti: Symmetrical (Nimzovich)

2.g3 Réti: Symmetrical (King's Indian)

2.g3 g6 Réti: Symmetrical (Barcza)

2.g3 g6 3.b3 Bg7 4.Bb2 0-0 5.Bg2 d6 6.0-0 Réti: Symmetrical (Fianchetto)

2.g3 b5 Réti: Symmetrical (Spassky)

2.g3 g5 3.b4 Réti: Symmetrical (Smyslov)

A06 Réti: Zukertort: 1.Nf3 d5

2.Rg1 Réti: Zukertort (Ampel)

2.d3 Réti: Zukertort (Old Indian)

2.Nc3 Réti: Zukertort (Mexican)

2.b3 Réti: Zukertort (Nimzovich)

2.b3 c5 3.e4 Réti: Zukertort (Accelerated Norfolk)

2.b3 Nf6 3.Bb2 c5 4.e4 Réti: Zukertort (Norfolk)

2.b4 Réti: Zukertort (Santasiere)

2.e4 Réti: Zukertort (Tennison)

A07 Réti: King's Indian: 1.Nf3 d5 2.g3

2.Bg4 3.Bg2 Nd7 Réti: King's Indian (Keres)

2.g6 Réti: King's Indian (Barcza)

2.g6 3.Bg2 Bg7 4.0-0 e5 5.d3 Ne7 Réti: King's Indian (Pachmann)

2.Nf6 3.Bg2 c5 4.d4 Réti: King's Indian (Grünfeld)Gruenfeld

2.Nf6 3.Bg2 c6 4.0-0 Bg4 Réti: King's Indian (Yugoslav)

2.Nc6 3.Bg2 e5 4.d3 Réti: King's Indian (Pirc)

A08 Réti: King's Indian: 1.Nf3 d5 2.g3 c5

3.Bg2 Nc6 4.0-0 e6 5.d3 Nf6 6.Nbd2 Be7 7.e4 0-0 Réti: King's Indian (French)

A09 Réti: Gambit: 1.Nf3 d5 2.c4

2.dxc4 Réti: Gambit (Accepted)

2.dxc4 3.e3 Be6 Réti: Gambit (Keres)

2.d4 Réti: Gambit (Advance)

2.d4 3.b4 Réti: Gambit (Polonaise)

 

A10-A39 English

A10 English: 1.c4

1.g6 English: Snake

1.g6 2.e4 e5 English: Snake (Adorjan)

1.f5 English: Anglo-Dutch

1.f5 2.e4 English: Anglo-Dutch (Hickmann)

1.f5 2.b4 English: Anglo-Dutch (Polish)

1.f5 2.g4 English: Anglo-Dutch (Wade)

1.b5 English: Jaenisch

1.d5 English: Anglo-Scandinavian

1.d5 2.cxd5 e6 English: Anglo-Scandinavian (Löhn) Lohn

1.g5 English: Myers

A11 English: Anglo-Slav: 1.c4 c6

2.Nf3 d5 3.g3 Nf6 4.Bg2 g6 English: Anglo-Slav (Irregular)

A12 English: Bogolubov: 1.c4 c6 2.Nf3 d5 3.b3

3.Nf6 4.g6 English: Bogolubov (Bled)

3.Nf6 4.Bb2 Bf5 English: Bogolubov (New York)

3.Nf6 4.Bb2 Bg4 English: Bogolubov (Capablanca)

3.Nf6 4.g3 Bf5 English: Bogolubov (London)

3.Nf6 4.g3 Bf5 5.Bg2 e6 6.Bb2 Nbd7 English: Bogolubov (Réti)

3.Nf6 4.g3 Bg4 English: Bogolubov (Torre)

« A00-A99 Quick Links

A13 English: Agincourt: 1.c4 e6

2.Nf3 Nf6 3.g3 a6 English: Agincourt (Romanishin)

2.Nf3 d5 English: Agincourt (King's Knight)

2.Nf3 d5 3.b3 Nf6 4.Bb2 c5 5.e3 English: Agincourt (Whimpey)

2.Nf3 d5 3.g3 c6 English: Agincourt (Kurajica)

2.Nf3 d5 3.g3 Nf6 English: Neo-Catalan

2.Nf3 d5 3.g3 Nf6 4.Bg2 c5 5.b3 Nc6 6.0-0 Be7 English: Neo-Catalan (Tarrasch)

2.Nf3 d5 3.g3 Nf6 4.Bg2 Bd6 English: Neo-Catalan (Bogo-Catalan)

2.Nf3 d5 3.g3 Nf6 4.Bg2 dxc4 English: Neo-Catalan (Accepted)

A14 English: Neo-Catalan: 1.c4 e6 2.Nf3 d5 3.g3 Nf6 4.Bg2 Be7

5.0-0 English: Neo-Catalan (Declined)

5.b3 0-0 6.Bb2 a5 English: Neo-Catalan (Bogolubov)

A15 English: Anglo-Indian: 1.c4 Nf6

2.b4 English: Anglo-Indian (Polish)

2.Nf3 English: Anglo-Indian (King's Knight)

2.Nf3 g6 3.g3 Bg7 4.Bg2 0-0 English: Anglo-Indian (King's Fianchetto)

A16 English: Anglo-Indian (Queen's Knight): 1.c4 Nf 2.Nc3

2.d5 English: Anglo-GrünfeldGruenfeld

2.d5 3.cxd5 Nxd5 4.g3 g6 5.Bg2 Nb6 English: Anglo-Grünfeld (Czech)

2.d5 3.cxd5 Nxd5 4.g3 g6 5.Bg2 Nxc3 English: Anglo-Grünfeld (Smyslov)

2.d5 3.cxd5 Nxd5 4.g3 c5 5.Bg2 Nc7 English: Anglo-Grünfeld (Rubinstein)

2.d5 3.cxd5 Nxd5 4.Nf3 g6 5.g3 Bg7 6.Bg2 e5 English: Anglo-Grünfeld (Korchnoi)

« A00-A99 Quick Links

A17 English: Hedgehog: 1.c4 Nf6 2.Nc3 e6

3.Nf3 b6 English: Hedgehog (Queen's Indian)

3.Nf3 b6 4.e4 Bb7 5.Bd3 English: Hedgehog (Romanishin)

3.Nf3 Bb4 English: Hedgehog (Nimzovich)

A18 English: Mikenas: 1.c4 Nf6 2.Nc3 e6 3.e4

3.d5 English: Mikenas (French)

3.d5 4.e5 English: Mikenas (Flohr)

3.Nc6 English: Mikenas (Kevitz)

A19 English: Mikenas (Sicilian): 1.c4 Nf6 2.Nc3 e6 3.e4 c5

4.e5 Ng8 English: Mikenas (Nei)

A20 English: Sicilian: 1.c4 e5

2.g3 h5 English: Sicilian (Drill)

2.Nf3 English: Sicilian (Nimzovich)

2.Nf3 e4 English: Sicilian (Flohr)

2.Qa4 English: Sicilian (English Queen)

A21 English: Sicilian: 1.c4 e5 2.Nc3

2.Bb4 English: Sicilian (Vienna)

2.d6 3.g3 c6 English: Sicilian (Keres)

2.d6 3.Nf3 Bg4 English: Sicilian (Smyslov)

A22 English: Sicilian (Two Knights): 1.c4 e5 2.Nc3 Nf6

3.Nf3 e4 4.Ng5 b5 English: Sicilian (Bellón)Bellon

3.g3 English: Carls

3.g3 d5 English: Carls (Reversed Dragon)

3.g3 Bb4 English: Carls (Smyslov)

A23 English:Carls (Keres): 1.c4 e5 2.Nc3 Nf6 3.g3 c6

A24 English: Carls (Bremen): 1.c4 e5 2.Nc3 Nf6 3.g3 g6

4.Bg2 Bg7 5.d3 English: Carls (Closed)

4.Bg2 Bg7 5.e3 d6 6.Nge2 Be6 English: Carls (Hort)

A25 English: Closed Sicilian: 1.c4 e5 2.Nc3 Nc6

3.g3 g6 4.Bg2 Bg7 English: Closed Sicilian (Taimanov)

3.g3 g6 4.Bg2 Bg7 5.e3 d6 6.Nge2 Be6 English: Closed Sicilian (Hort)

3.g3 g6 4.Bg2 Be6 English: Closed Sicilian (Tröger)Troger

3.e3 Nf6 4.b3 d6 English: Closed Sicilian (Amsterdam)

A26 English: Closed Sicilian: 1.c4 e5 2.Nc3 Nc6 3.g3 g6 4.Bg2 Bg7 5.d3 5.d6 6.e4

5...d6 6.e4 English: Closed Sicilian (Botvinnik)

A27 English: Three Knights: 1.c4 e5 2.Nc3 Nc6 3.Nf3

3.f5 English: Three Knights (Dutch)

A28 English: Four Knights: 1.c4 e5 2.Nc3 Nc6 3.Nf3 Nf6

4.a3 English: Four Knights (Marini)

4.e4 English: Four Knights (Nimzovich)

4.d4 e4 English: Four Knights (Bradley Beach)

4.d4 exd4 5.Nxd4 Bb4 6.Bg5 h6 English: Four Knights (Nenarokov)

4.d3 English: Four Knights (Capablanca)

4.e3 Bb4 5.Qc2 0-0 6.Nd5 Re8 7.Qf5 English: Four Knights (Stean)

4.e3 Bb4 5.Qc2 Bxc3 English: Four Knights (Romanishin)

« A00-A99 A00-A99 Quick Links

A29 English: Four Knights (Fianchetto): 1.c4 e5 2.Nc3 Nc6 3.Nf3 Nf6 4.g3

A30 English: Symmetrical: 1.c4 c5

2.b4 English: Symmetrical (Wing Gambit)

2.Nf3 Nf6 3.g3 b6 4.Bg2 Bb7 5.0-0 e6 6.Nc3 Be7 English: Symmetrical (Hedgehog)

2.Nf3 Nf6 3.g3 b6 4.Bg2 Bb7 5.0-0 e6 6.Nc3 Be7

7.d4 cxd4 8.Qxd4 d6 9.Rd1 a6 10.b3 Nbd7 English: Symmetrical (Flexible Hedgehog)

A31 English: Anti-Benoni: 1.c4 c5 2.Nf3 Nf6 3.d4

A32 English: Anti-Benoni: 1.c4 c5 2.Nf3 Nf6 3.d4 cxd4 4.Nxd4 e6

A33 English: Anti-Benoni (Geller): 1.c4 c5 2.Nf3 Nf6 3.d4 cxd4 4.Nxd4 e6 5.Nc3 Nc6

A34 English: Asymmetrical: 1.c4 c5 2.Nc3

2.Nf6 3.g3 d5 4.cxd5 Nxd5 English: Asymmetrical (Rubinstein)

2.Nf6 3.Nf3 d5 4.cxd5 Nxd5 English: Asymmetrical (Three Knights)

2.Nf6 3.Nf3 d5 4.cxd5 Nxd5 5.g3 Nc6 6.Bg2 e6 7.0-0 Be7 English: Asymmetrical (Keres)

A35 English: Symmetrical (Two Knights): 1.c4 c5 2.Nc3 Nc6

3.Nf3 Nf6 English: Symmetrical (Four Knights)

A36 English: Symmetrical (Fianchetto): 1.c4 c5 2.Nc3 Nc6 3.g3

3.g6 4.Bg2 Bg7 English: Ultra-Symmetrical

3.g6 4.Bg2 Bg7 5.e4 English: Ultra-Symmetrical (Botvinnik)

3.g6 4.Bg2 Bg7 5.e3 e5 English: Ultra-Symmetrical (Reversed Botvinnik)

A37 English: Ultra-Symmetrical: 1.c4 c5 2.Nc3 Nc6 3.g3 g6 4.Bg2 Bg7 5.Nf3

5.e5 English: Ultra-Symmetrical (Russian)

A38 English: Ultra-Symmetrical: 1.c4 c5 2.Nc3 Nc6 3.g3 g6 4.Bg2 Bg7 5.Nf3 Nf6

6.0-0 0-0 7.b3 English: Ultra-Symmetrical (Double Fianchetto)

A39 English: Ultra-Symmetrical (Mecking): 1.c4 c5 2.Nc3 Nc6 3.g3 g6 4.Bg2 Bg7

5.Nf3 Nf6 6.0-0 0-0 7.d4

 

A40 Irregular Queen's Pawn: 1.d4

1.e5 Irregular Queen's Pawn: Charlick

1.e5 2.dxe5 f6 Irregular Queen's Pawn: Charlick (Soller)

1.e5 2.dxe5 Qh4 Irregular Queen's Pawn: Charlick (Mosquito)

1.e5 2.dxe5 d6 3.Bf4 Irregular Queen's Pawn: Charlick (Hartlaub)

1.e5 2.dxe5 Nc6 Irregular Queen's Pawn: Englund

1.e5 2.dxe5 Nc6 3.Nf3 Nge7 Irregular Queen's Pawn: Englund (Zilbermints)

1.e5 2.dxe5 Nc6 3.Nf3 Bc5 Irregular Queen's Pawn: Englund (Felbecker)

1.e5 2.dxe5 Nc6 3.Nf3 f6 Irregular Queen's Pawn: Englund (Soller)

1.e5 2.dxe5 Nc6 3.Nf3 Qe7 4.Qd5 Irregular Queen's Pawn: Englund (Stockholm)

1.b5 Irregular Queen's Pawn: Polish

1.b5 2.e4 Bb7 3.Bxb5 Irregular Queen's Pawn: Polish (Spassky)

1.Nc6 Irregular Queen's Pawn: Nimzovich

1.Nc6 2.c4 e5 3.dxe5 Nxe5 4.Nc3 Nxc4 Irregular Queen's Pawn: Nimzovich (Pozarek)

1.b6 Irregular Queen's Pawn: Owen

1.e6 Irregular Queen's Pawn: Franco-Indian

1.e6 2.c4 Bb4+ Irregular Queen's Pawn: Franco-Indian (Keres)

1.e6 2.c4 b6 Irregular Queen's Pawn: English

1.e6 2.c4 b6 3.e4 Bb7 4.f3 f5 Irregular Queen's Pawn: English (Poli)

1.e6 2.c4 b6 3.e4 Bb7 4.Nc3 f5 5.exf5 Nf6 Irregular Queen's Pawn: English (Hartlaub)

1.e6 2.c4 b6 3.e4 Bb7 4.Bd3 Nc6 Irregular Queen's Pawn: English (Perrin)

1.g5 Irregular Queen's Pawn: Borg

1.g6 Irregular Queen's Pawn: Kotov

1.g6 2.h4 Nf6 3.h5 Irregular Queen's Pawn: Kotov (Pirc-Diemer)

1.g6 2.c4 Bg7 Irregular Queen's Pawn: Kotov (Robatsch)

1.g6 2.c4 Bg7 3.e4 d5 4.exd5 c6 5.dxc6 Bxd4 Irregular Queen's Pawn: Kotov (Dunworthy)

1.g6 2.c4 Bg7 3.Nc3 c5 4.d5 Bxc3+ 5.bxc3 f5 Irregular Queen's Pawn: Kotov (Beefeater)

 

A41-A42 Modern

A41 Modern: 1.d4 d6

2.Nf3 Bg4 Modern: Tartakower

2.Nf3 Bg4 3.c4 Nd7 4.Qb3 Rb8 Modern: Tartakower (Chigorin)

2.c4 c6 Modern: Anglo-Slav

2.c4 g6 3.Nf3 Bg7 4.e4 Bg4 Modern: Rossilimo

A42 Modern: Averbakh: 1.d4 d6 2.c4 g6 3.Nc3 Bg7 4.e4

4.f5 Modern: Averbakh (Randspringer)

4.c5 5.Nf3 Qa5 Modern: Averbakh (Pterodactyl)

4.Nc6 Modern: Averbakh (Kotov)

 

A43-A44 Old Benoni

A43 Old Benoni: 1.d4 c5

2.dxc5 b6 Old Benoni: Cormorant

2.b4 Old Benoni: Nakamura

2.d5 f5 Old Benoni: Mujannah

2.d5 Na6 Old Benoni: Snail

2.d5 e6 3.e4 Old Benoni: Franco-Sicilian

2.d5 Nf6 Old Benoni: Indian

2.d5 Nf6 3.Nc3 Qa5 Old Benoni: Indian (Woozle)

2.d5 Nf6 3.Nf3 c4 Old Benoni: Indian (Habichd)

2.d5 d6 3.Nc3 g6 Old Benoni: Schmid

2.c4 e6 Old Benoni: Franco-Benoni

A44 Old Benoni: Pawn Thrust: 1.d4 c5 2.d5 e5

3.e4 d6 Old Benoni: Pawn Thrust (Blockade)

 

A45-A50 Indian

A45 Indian: 1.d4 Nf6

2.f3 Indian: Paleface

2.f3 d5 3.g4 Indian: Paleface (Gedult)

2.f3 d5 3.e4 Indian: Paleface (Blackmar)

2.f4 Indian: Canard

2.g4 Indian: Bronstein

2.g4 e5 Indian: Bronstein (Oshima)

2.g4 Nxg4 3.f3 Nf6 4.e4 Indian: Bronstein (Maltese Falcon)

2.g4 Nxg4 3.e4 d6 4.Be2 Nf6 5.Nc3 Indian: Bronstein (Stummer)

2.Nd2 e5 Indian: Lazard

2.Nc3 e5 Indian: Maddigan

2.Nc3 c5 3.dxc5 Indian: von Beivorseen

2.g3 e5 Indian: Psuedo-Budapest

2.Bg5 Indian: Trompowsky

2.Bg5 Ne4 3.Bf4 g5 Indian: Trompowsky (Borg)

2.Bg5 Ne4 3.h4 Indian: Trompowsky (Raptor)

A46 Indian: Knight: 1.d4 Nf6 2.Nf3

2.Ne4 Indian: Knight (Döry)

2.b5 Indian: Knight (Polish)

2.c6 Indian: Knight (Czech)

2.c5 Indian: Knight (Spielmann)

2.c5 3.d5 b5 Indian: Knight (Benko)

2.e6 3.e3 Indian: Knight (Rubinstein)

2.e6 3.Bf4 Indian: Knight (London)

2.e6 3.Bg5 Indian: Torre

2.e6 3.Bg5 h6 Indian: Torre (Nimzovich)

2.e6 3.Bg5 c5 4.e4 Indian: Torre (Wagner)

A47 Indian: Capablanca: 1.d4 Nf6 2.Nf3 b6

3.c3 e5 Indian: Capablanca (Schnepper)

3.g3 Bb7 4.Bg2 c5 Indian: Capablanca (Marienbad)

3.g3 Bb7 4.Bg2 c5 5.c4 cxd4 Qxd4 Indian: Capablanca (Berg)

3.Bg5 Indian: Capablanca (Torre)

A48 Indian: East Indian: 1.d4 Nf6 2.Nf3 g6

3.Bf4 Indian: East Indian (London)

3.Bg5 Indian: East Indian (Torre)

A49 Indian: East Indian (Przepiorka) 1.d4 Nf6 2.Nf3 g6 3.g3

A50 Indian: 1.d4 Nf6 2.c4

2.Nc6 Indian: Mexican

2.Nc6 3.d5 Ne5 4.f4 Indian: Mexican (Horsefly)

2.b6 Indian: Sämisch

2.b6 3.Nc3 Indian: Sämisch (Marienbad)

2.g5 Indian: Medusa

 

A51-A52 Budapest

A51 Budapest: 1.d4 Nf6 2.c4 e5

3.dxe5 Ne4 Budapest: Fajarowicz

3.dxe5 Ne4 4.Qc2 Budapest: Fajarowicz (Steiner)

3.dxe5 Ne4 4.a3 b6 Budapest: Fajarowicz (Bonsdorf)

A52 Budapest: 1.d4 Nf6 2.c4 e5 3.dxe5 Ng4

4.e4 Budapest: Alekhine

4.e4 d6 Budapest: Alekhine (Balogh)

4.e4 Nxe5 5.f4 Nec6 Budapest: Alekhine (Abonyi)

4.Nf3 Budapest: Adler

4.Bf4 Budapest: Rubinstein

 

A53-A55 Old Indian

A53 Old Indian: 1.d4 Nf6 2.c4 d6

3.Nf3 Bg4 Old Indian: Tartakower

3.Nc3 Bf5 Old Indian: Janowski

3.Nc3 e5 Old Indian: Ukrainian

3.Nc3 e5 4.e3 Nbd7 5.Bd3 Old Indian: Ukrainian (Dus Chotmirsky)

A54 Old Indian: Ukrainian (Two Knights): 1.d4 Nf6 2.c4 d6 3.Nc3 e5 4.Nf3

A55 Old Indian: Ukrainian (Two Knights): 1.d4 Nf6 2.c4 d6 3.Nc3 e5 4.Nf3 Nbd7 5.e4

 

A56 Benoni: 1.d4 Nf6 2.c4 c5

3.d5 Ne4 Benoni: Vulture

3.d5 d6 Benoni: Hromádka

3.d5 g6 Benoni: Fianchetto

3.d5 e5 Benoni: Czech

3.d5 e5 4.Nc3 d6 5.e4 g6 Benoni: Czech (King's Indian)

 

A57-A59 Benko Gambit

A57 Benko Gambit: 1.d4 Nf6 2.c4 c5 3.d5 b5

4.cxb5 a6 Benko Gambit: Half-Accepted

4.cxb5 a6 5.Nc3 Benko Gambit: Half-Accepted (Zaitsev)

4.cxb5 a6 5.Nc3 axb5 6.e4 b4 7.Nb5 d6 8.Bc4 Benko Gambit: Half-Accepted (Nescafé Frappe)

A58 Benko Gambit: Accepted: 1.d4 Nf6 2.c4 c5 3.d5 b5 4.cxb5 a6 5.bxa6

5.Bxa6 6.Nc3 d6 7.Nf3 g6 8.g3 Benko Gambit: Accepted (Fianchetto)

A59 Benko Gambit: Yugoslav: 1.d4 Nf6 2.c4 c5 3.d5 b5 4.cxb5 a6 5.bxa6 Bxa6 6.Nc3 d6 7.e4

7.Bxf1 8.Kxf1 g6 9.g3 Bg7 10.Kg2 0-0 11.Nf3 Benko Gambit: Yugoslav (King Walk)

 

A60-A79 Modern Benoni

A60 Modern Benoni: 1.d4 Nf6 2.c4 c5 3.d5 e6

4.Nc3 exd5 5.cxd5 Bd6 Modern Benoni: Snake

4.Nc3 exd5 5.cxd5 d6 6.Nf3 Be7 Modern Benoni: Kurz

A61 Modern Benoni: Knight's Tour: 1.d4 Nf6 2.c4 c5 3.d5 e6 4.Nc3 exd5 5.cxd5 d6 6.Nf3 g6

7.g3 Modern Benoni: Knight's Tour (Fianchetto)

7.Nd2 Modern Benoni: Knight's Tour (Nimzovich)

7.Bd2 Modern Benoni: Knight's Tour (Penrose)

7.Bg5 Modern Benoni: Knight's Tour (Uhlmann)

A62 Modern Benoni: Fianchetto: 1.d4 Nf6 2.c4 c5 3.d5 e6 4.Nc3 exd5 5.cxd5 d6 6.Nf3 g6 7.g3 Bg7

A63 Modern Benoni: Fianchetto (Hastings): 1.d4 Nf6 2.c4 c5 3.d5 e6 4.Nc3 exd5 5.cxd5 d6 6.Nf3 g6 7.g3 Bg7 8.Bg2 0-0 9.0-0 a6 10.a4 Nbd7

A64 Modern Benoni: Fianchetto (Hastings): 1.d4 Nf6 2.c4 c5 3.d5 e6 4.Nc3 exd5 5.cxd5 d6 6.Nf3 g6 7.g3 Bg7 8.Bg2 0-0 9.0-0 a6 10.a4 Nbd7 11.Nd2 Re8

A65 Modern Benoni: King's Pawn: 1.d4 Nf6 2.c4 c5 3.d5 e6 4.Nc3 exd5 5.cxd5 d6 6.e4

A66 Modern Benoni: Pawn Storm: 1.d4 Nf6 2.c4 c5 3.d5 e6 4.Nc3 exd5 5.cxd5 d6 6.e4 g6 7.f4 7.Bg7 8.e5 (Mikenas)

A67 Modern Benoni: Pawn Storm (Taimanov): 1.d4 Nf6 2.c4 c5 3.d5 e6 4.Nc3 exd5 5.cxd5 d6 6.e4 g6 7.f4 Bg7 8.Bb5+

A68 Modern Benoni: Pawn Storm (Four Pawns): 1.d4 Nf6 2.c4 c5 3.d5 e6 4.Nc3 exd5 5.cxd5 d6 6.e4 g6 7.f4 Bg7 8.Nf3 0-0

A69 Modern Benoni: Pawn Storm (Four Pawns): 1.d4 Nf6 2.c4 c5 3.d5 e6 4.Nc3 exd5 5.cxd5 d6 6.e4 g6 7.f4 Bg7 8.Nf3 0-0 9.Be2 Re8

A70 Modern Benoni: Classical: 1.d4 Nf6 2.c4 c5 3.d5 e6 4.Nc3 exd5 5.cxd5 d6 6.e4 g6 7.Nf3

A71 Modern Benoni: Classical: 1.d4 Nf6 2.c4 c5 3.d5 e6 4.Nc3 exd5 5.cxd5 d6 6.e4 g6 7.Nf3 Bg7 8.Bg5

A72* Modern Benoni: Classical: 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

A73 Modern Benoni: Classical: 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

A74 Modern Benoni: Classical: 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 a6

A75 Modern Benoni Classical (Argentine): 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 a6 10.a4 Bg4

A76 Modern Benoni: Classical (Czerniak): 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 Re8

A77 Modern Benoni: Classical (Czerniak): 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 Re8 10.Nd2

A78 Modern Benoni: Classical (Czerniak): 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 Re8 10.Nd2 Na6

A79 Modern Benoni: Classical (Czerniak): 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 Re8 10.Nd2 Na6 11.f3

 

A80-A99 Dutch

A80 Dutch: 1.d4 f5

2.h3 Dutch: Korchnoi

2.h3 Nf6 3.g4 Dutch: Korchnoi (Janzen)

2.g4 Dutch: Krejcik

2.g4 e5 Dutch: Krejcik (Hevendahl)

2.Bf4 e6 3.g4 Dutch: Senechaud

2.Bg5 Dutch: Hopton

2.Nc3 Dutch: Raphael

2.Nc3 d5 3.e4 Dutch: Raphael (Kingfisher)

2.Nc3 d5 3.g4 fxg4 4.e4 Dutch: Raphael (Tate)

2.Nc3 Nf6 3.g4 Dutch: Raphael (Spielmann)

2.Nf3 e6 3.e4 Dutch: Sjodin

2.Qd3 Dutch: Alapin

2.Qd3 e6 3.g4 Dutch: Alapin (von Pretzel)

A81 Dutch: Indian: 1.d4 f5 2.g3

2.Nf6 3.Bg2 e6 4.Nh3 Dutch: Indian (Blackburne)

2.Nf6 3.Bg2 g6 Dutch: Indian (Semi-Leningrad)

2.g6 Dutch: Indian (Leningrad)

2.g6 3.Bg2 Bg7 4.Nf3 c6 5.0-0 Nh6 Dutch: Indian (Basman)

2.g6 3.Bg2 Bg7 4.Nh3 Dutch: Indian (Carlsbad)

A82 Dutch: Staunton: 1.d4 f5 2.e4

2.d6 Dutch: Staunton (Balogh)

2.c6 Dutch: Staunton (Massachussets)

2.fxe4 3.Nd2 Dutch: Staunton (American)

2.fxe4 3.Nc3 Nf6 4.g4 Dutch: Staunton (Tartakower)

2.fxe4 3.Nc3 Nf6 4.f3 Dutch: Staunton (Diemer)

A83 Dutch: Staunton: 1.d4 f5 2.e4 fxe4 3.Nc3 Nf6 4.Bg5

4.b6 Dutch: Staunton (Nimzovich)

4.g6 5.h4 Dutch: Staunton (Alekhine)

4.g6 5.f3 Dutch: Staunton (Lasker)

4.c6 Dutch: Staunton (Chigorin)

A84 Dutch: 1.d4 f5 2.c4

2.e6 3.Nc3 Dutch: Rubinstein

2.e6 3.e4 Dutch: Staunton Gambit Deferred

2.Nf6 3.Nf3 g6 4.g3 Dutch: Russian

2.g6 3.Nc3 Nh6 Dutch: Bladel

A85 Dutch: Queen's Knight: 1.d4 f5 2.c4 Nf6 3.Nc3

3.d6 Dutch: Queen's Knight (Krause)

3.e6 4.Nf3 d5 5.e3 c6 6.Bd3 Ne4 Dutch: Queen's Knight (Stonewall)

A86 Dutch: Fianchetto: 1.d4 f5 2.c4 Nf6 3.g3

3.d6 4.Bg2 c6 5.Nc3 Qc7 Dutch: Fianchetto (Hort-Anotshin)

3.g6 Dutch: Leningrand

3.g6 4.Bg2 Bg7 5.Nh3 Dutch: Leningrand (Carlsbad)

A87 Dutch: Leningrad: 1.d4 f5 2.c4 Nf6 3.g3 g6 4.Bg2 Bg7 5.Nf3

A88 Dutch: Leningrad (Warsaw): 1.d4 f5 2.c4 Nf6 3.g3 g6 4.Bg2 Bg7 5.Nf3 0-0 6.0-0 d6 7.Nc3 c6

A89 Dutch: Leningrad (Matulovic): 1.d4 f5 2.c4 Nf6 3.g3 g6 4.Bg2 Bg7 5.Nf3 0-0 6.0-0 d6 7.Nc3 Nc6

A90 Dutch: Classical: 1.d4 f5 2.c4 Nf6 3.g3 e6

4.Bg2 Bb4- Dutch: Bogo-Indian

4.Bg2 Bb4- 5.Bd2 Be7 Dutch: Bogo-Indian (Alekhine)

4.Bg2 d5 5.Nf3 c6 6.O-O Bd6 Dutch: Classical (Stonewall)

A91 Dutch: Classical: 1.d4 f5 2.c4 Nf6 3.g3 e6 4.Bg2 Be7

A92 Dutch: Classical: 1.d4 f5 2.c4 Nf6 3.g3 e6 4.Bg2 Be7 5.Nf3 0-0

6.0-0 Ne4 Dutch: Classical (Alekhine)

6.0-0 d5 Dutch: Stonewall

A93 Dutch: Stonewall (Botvinnik): 1.d4 f5 2.c4 Nf6 3.g3 e6 4.Bg2 Be7 5.Nf3 0-0 6.0-0 d5 7.b3

A94 Dutch: Stonewall (Botvinnik): 1.d4 f5 2.c4 Nf6 3.g3 e6 4.Bg2 Be7 5.Nf3 0-0 6.0-0 d5 7.b3 c6 8.Ba3

A95 Dutch: Stonewall: 1.d4 f5 2.c4 Nf6 3.g3 e6 4.Bg2 Be7 5.Nf3 0-0 6.0-0 d5 7.Nc3 c6 8.Qc2 Qe8 9.Bg5 Dutch: Stonewall (Chekhover)

A96 Dutch: Classical: 1.d4 f5 2.c4 Nf6 3.g3 e6 4.Bg2 Be7 5.Nf3 0-0 6.0-0 d6

A97 Dutch: Ilyin-Genevsky: 1.d4 f5 2.c4 Nf6 3.g3 e6 4.Bg2 Be7 5.Nf3 0-0 6.0-0 d6 7.Nc3 Qe8 8.Re1 Dutch: Ilyin-Genevsky (Winter)

A98 Dutch: Ilyin-Genevsky: 1.d4 f5 2.c4 Nf6 3.g3 e6 4.Bg2 Be7 5.Nf3 0-0 6.0-0 d6 7.Nc3 Qe8 8.Qc2

A99 Dutch: Ilyin-Genevsky: 1.d4 f5 2.c4 Nf6 3.g3 e6 4.Bg2 Be7 5.Nf3 0-0 6.0-0 d6 7.Nc3 Qe8 8.b3