Aperturas de ajedrez Desde internet, de Petru (picu682002[at]yahoo.com). Incluidos los enlaces a la pagina web original. Pido perdon para los errores (eventuales) de traduccion. Uso UTF-8 sin diacriticos (ñ, ç, ó), hoy 24 agosto 2016.

Codigos ECO

Los codigos ECO (Encyclopaedia of Chess Openings) son una sistema de clasificacion para lasjugadas de las aperturas de ajedrez. A continuacion adjunto la lista (completa, digo yo) de las aperturas de ajedrez organizadas bajo codigos ECO (Encyclopaedia of Chess Openings). Las aperturas estan divididas en cinco volumenes , desde “A” hasta “E” cada una con sus subvariantes adiacentes. Solo hay que dar clic sobre cada enlace . ¡disfrutadlo!! :)

• A00 Polish (Sokolsky) opening

1. b4• A00 Polish, Tuebingen variation

1. b4 Nh6 • A00 Polish, Outflank variation

1. b4 c6 • A00 Benko's opening

1. g3• A00 Lasker simul special

1. g3 h5 • A00 Benko's opening, reversed Alekhine

1. g3 e5 2. Nf3• A00 Grob's attack

1. g4• A00 Grob, spike attack

1. g4 d5 2. Bg2 c6 3. g5• A00 Grob, Fritz gambit

1. g4 d5 2. Bg2 Bxg4 3. c4• A00 Grob, Romford counter-gambit

1. g4 d5 2. Bg2 Bxg4 3. c4 d4 • A00 Clemenz (Mead's, Basman's or de Klerk's) opening

1. h3• A00 Global opening

1. h3 e5 2. a3• A00 Amar (Paris) opening

1. Nh3• A00 Amar gambit

1. Nh3 d5 2. g3 e5 3. f4 Bxh3 4. Bxh3 exf4 • A00 Dunst (Sleipner, Heinrichsen) opening

1. Nc3• A00 Dunst (Sleipner,Heinrichsen) opening

1. Nc3 e5 • A00 Battambang opening

1. Nc3 e5 2. a3• A00 Novosibirsk opening

1. Nc3 c5 2. d4 cxd4 3. Qxd4 Nc6 4. Qh4• A00 Anderssen's opening

1. a3• A00 Ware (Meadow Hay) opening

1. a4• A00 Crab opening

1. a4 e5 2. h4• A00 Saragossa opening

1. c3• A00 Mieses opening

1. d3• A00 Mieses opening

1. d3 e5 • A00 Valencia opening

1. d3 e5 2. Nd2• A00 Venezolana opening

1. d3 c5 2. Nc3 Nc6 3. g3• A00 Van't Kruijs opening

1. e3• A00 Amsterdam attack

1. e3 e5 2. c4 d6 3. Nc3 Nc6 4. b3 Nf6 • A00 Gedult's opening

1. f3• A00 Hammerschlag (Fried fox/Pork chop opening)

1. f3 e5 2. Kf2• A00 Anti-Borg (Desprez) opening

1. h4• A00 Durkin's attack

1. Na3• A01 Nimzovich-Larsen attack

1. b3• A01 Nimzovich-Larsen attack, modern variation

1. b3 e5 • A01 Nimzovich-Larsen attack, Indian variation

1. b3 Nf6 • A01 Nimzovich-Larsen attack, classical variation

1. b3 d5 • A01 Nimzovich-Larsen attack, English variation

1. b3 c5 • A01 Nimzovich-Larsen attack, Dutch variation

1. b3 f5 • A01 Nimzovich-Larsen attack, Polish variation

1. b3 b5 • A01 Nimzovich-Larsen attack, symmetrical variation

1. b3 b6 • A02-A03 Bird's opening

1. f4• A04-A09 Reti opening

1. Nf3• A10-A39 English opening

1. c4• A40-A41 Queen's pawn

1. d4• A42 Modern defence, Averbakh system

1. d4 d6 2. c4 g6 3. Nc3 Bg7 4. e4• A42 Pterodactyl defence

1. d4 d6 2. c4 g6 3. Nc3 Bg7 4. e4 c5 5. Nf3 Qa5 • A42 Modern defence, Averbakh system, Randspringer variation

1. d4 d6 2. c4 g6 3. Nc3 Bg7 4. e4 f5 • A42 Modern defence, Averbakh system, Kotov variation

1. d4 d6 2. c4 g6 3. Nc3 Bg7 4. e4 Nc6 • A43-A44 Old Benoni defence

1. d4 c5 • A45-A46 Queen's pawn game

1. d4 Nf6 • A47 Queen's Indian defence

1. d4 Nf6 2. Nf3 b6 • A47 Queen's Indian, Marienbad system

1. d4 Nf6 2. Nf3 b6 3. g3 Bb7 4. Bg2 c5 • A47 Queen's Indian, Marienbad system, Berg variation

1. d4 Nf6 2. Nf3 b6 3. g3 Bb7 4. Bg2 c5 5. c4 cxd4 6. Qxd4• A48-A49 King's Indian, East Indian defence

1. d4 Nf6 2. Nf3 g6 • A50 Queen's pawn game

1. d4 Nf6 2. c4• A50 Kevitz-Trajkovich defence

1. d4 Nf6 2. c4 Nc6 • A50 Queen's Indian accelerated

1. d4 Nf6 2. c4 b6 • A51-A52 Budapest defence

1. d4 Nf6 2. c4 e5 • A53-A55 Old Indian defence

1. d4 Nf6 2. c4 d6 • A56 Benoni defence

1. d4 Nf6 2. c4 c5 • A56 Benoni defence, Hromodka system

1. d4 Nf6 2. c4 c5 3. d5 d6 • A56 Vulture defence

1. d4 Nf6 2. c4 c5 3. d5 Ne4 • A56 Czech Benoni defence

1. d4 Nf6 2. c4 c5 3. d5 e5 • A56 Czech Benoni, King's Indian system

1. d4 Nf6 2. c4 c5 3. d5 e5 4. Nc3 d6 5. e4 g6 • A57-A59 Benko gambit

1. d4 Nf6 2. c4 c5 3. d5 b5 • A60-A79 Benoni defence

1. d4 Nf6 2. c4 c5 3. d5 e6 • A80-A99 Dutch

1. d4 f5 • B00 King's pawn opening

1. e4• B00 Hippopotamus defence

1. e4 Nh6 2. d4 g6 3. c4 f6 • B00 Corn stalk defence

1. e4 a5 • B00 Lemming defence

1. e4 Na6 • B00 Fred

1. e4 f5 • B00 Barnes defence

1. e4 f6 • B00 Fried fox defence

1. e4 f6 2. d4 Kf7 • B00 Carr's defence

1. e4 h6 • B00 Reversed Grob (Borg/Basman defence/macho Grob)

1. e4 g5 • B00 St. George (Baker) defence

1. e4 a6 • B00 Owen defence

1. e4 b6 • B00 Guatemala defence

1. e4 b6 2. d4 Ba6 • B00 KP, Nimzovich defence

1. e4 Nc6 • B00 KP, Nimzovich defence, Wheeler gambit

1. e4 Nc6 2. b4 Nxb4 3. c3 Nc6 4. d4• B00 KP, Nimzovich defence

1. e4 Nc6 2. Nf3• B00 KP, Colorado counter

1. e4 Nc6 2. Nf3 f5 • B00 KP, Nimzovich defence

1. e4 Nc6 2. d4• B00 KP, Nimzovich defence, Marshall gambit

1. e4 Nc6 2. d4 d5 3. exd5 Qxd5 4. Nc3• B00 KP, Nimzovich defence, Bogolyubov variation

1. e4 Nc6 2. d4 d5 3. Nc3• B00 KP, Neo-Mongoloid defence

1. e4 Nc6 2. d4 f6 • B01 Scandinavian (centre counter) defence

1. e4 d5 • B01 Scandinavian defence, Lasker variation

1. e4 d5 2. exd5 Qxd5 3. Nc3 Qa5 4. d4 Nf6 5. Nf3 Bg4 6. h3• B01 Scandinavian defence

1. e4 d5 2. exd5 Qxd5 3. Nc3 Qa5 4. d4 Nf6 5. Nf3 Bf5 • B01 Scandinavian defence, Gruenfeld variation

1. e4 d5 2. exd5 Qxd5 3. Nc3 Qa5 4. d4 Nf6 5. Nf3 Bf5 6. Ne5 c6 7. g4• B01 Scandinavian, Anderssen counter-attack

1. e4 d5 2. exd5 Qxd5 3. Nc3 Qa5 4. d4 e5 • B01 Scandinavian, Anderssen counter-attack orthodox attack

1. e4 d5 2. exd5 Qxd5 3. Nc3 Qa5 4. d4 e5 5. dxe5 Bb4 6. Bd2 Nc6 7. Nf3• B01 Scandinavian, Anderssen counter-attack, Goteborg system

1. e4 d5 2. exd5 Qxd5 3. Nc3 Qa5 4. d4 e5 5. Nf3• B01 Scandinavian, Anderssen counter-attack, Collijn variation

1. e4 d5 2. exd5 Qxd5 3. Nc3 Qa5 4. d4 e5 5. Nf3 Bg4 • B01 Scandinavian, Mieses-Kotrvc gambit

1. e4 d5 2. exd5 Qxd5 3. Nc3 Qa5 4. b4• B01 Scandinavian, Pytel-Wade variation

1. e4 d5 2. exd5 Qxd5 3. Nc3 Qd6 • B01 Scandinavian defence

1. e4 d5 2. exd5 Nf6 • B01 Scandinavian, Icelandic gambit

1. e4 d5 2. exd5 Nf6 3. c4 e6 • B01 Scandinavian gambit

1. e4 d5 2. exd5 Nf6 3. c4 c6 • B01 Scandinavian defence

1. e4 d5 2. exd5 Nf6 3. d4• B01 Scandinavian, Marshall variation

1. e4 d5 2. exd5 Nf6 3. d4 Nxd5 • B01 Scandinavian, Kiel variation

1. e4 d5 2. exd5 Nf6 3. d4 Nxd5 4. c4 Nb4 • B01 Scandinavian, Richter variation

1. e4 d5 2. exd5 Nf6 3. d4 g6 • B02-B05 Alekhine's defence

1. e4 Nf6 • B06 Robatsch (modern) defence

1. e4 g6 • B06 Norwegian defence

1. e4 g6 2. d4 Nf6 3. e5 Nh5 4. g4 Ng7 • B06 Robatsch (modern) defence

1. e4 g6 2. d4 Bg7 • B06 Robatsch defence, three pawns attack

1. e4 g6 2. d4 Bg7 3. f4• B06 Robatsch defence

1. e4 g6 2. d4 Bg7 3. Nc3• B06 Robatsch defence, Gurgenidze variation

1. e4 g6 2. d4 Bg7 3. Nc3 c6 4. f4 d5 5. e5 h5 • B06 Robatsch (modern) defence

1. e4 g6 2. d4 Bg7 3. Nc3 d6 • B06 Robatsch defence, two knights variation

1. e4 g6 2. d4 Bg7 3. Nc3 d6 4. Nf3• B06 Robatsch defence, two knights, Suttles variation

1. e4 g6 2. d4 Bg7 3. Nc3 d6 4. Nf3 c6 • B06 Robatsch defence, Pseudo-Austrian attack

1. e4 g6 2. d4 Bg7 3. Nc3 d6 4. f4• B07-B09 Pirc defence

1. e4 d6 2. d4 Nf6 3. Nc3• B10-B19 Caro-Kann defence

1. e4 c6 • B20-B99 Sicilian defence

1. e4 c5 • C00-C19 French defence

1. e4 e6 • C20 King's pawn game

1. e4 e5 • C20 KP, Indian opening

1. e4 e5 2. d3• C20 KP, Mengarini's opening

1. e4 e5 2. a3• C20 KP, King's head opening

1. e4 e5 2. f3• C20 KP, Patzer opening

1. e4 e5 2. Qh5• C20 KP, Napoleon's opening

1. e4 e5 2. Qf3• C20 KP, Lopez opening

1. e4 e5 2. c3• C20 Alapin's opening

1. e4 e5 2. Ne2• C21-C22 Centre game

1. e4 e5 2. d4 exd4 • C23-C24 Bishop's opening

1. e4 e5 2. Bc4• C25-C29 Vienna game

1. e4 e5 2. Nc3• C30-C39 King's gambit

1. e4 e5 2. f4• C40 King's knight opening

1. e4 e5 2. Nf3• C40 Gunderam defence

1. e4 e5 2. Nf3 Qe7 • C40 Greco defence

1. e4 e5 2. Nf3 Qf6 • C40 Damiano's defence

1. e4 e5 2. Nf3 f6 • C40 QP counter-gambit (elephant gambit)

1. e4 e5 2. Nf3 d5 • C40 QP counter-gambit, Maroczy gambit

1. e4 e5 2. Nf3 d5 3. exd5 Bd6 • C40 Latvian counter-gambit

1. e4 e5 2. Nf3 f5 • C40 Latvian, Nimzovich variation

1. e4 e5 2. Nf3 f5 3. Nxe5 Qf6 4. d4 d6 5. Nc4 fxe4 6. Ne3• C40 Latvian, Fraser defence

1. e4 e5 2. Nf3 f5 3. Nxe5 Nc6 • C40 Latvian gambit, 3.Bc4

1. e4 e5 2. Nf3 f5 3. Bc4• C40 Latvian, Behting variation

1. e4 e5 2. Nf3 f5 3. Bc4 fxe4 4. Nxe5 Qg5 5. Nf7 Qxg2 6. Rf1 d5 7. Nxh8 Nf6 • C40 Latvian, Polerio variation

1. e4 e5 2. Nf3 f5 3. Bc4 fxe4 4. Nxe5 d5 • C40 Latvian, corkscrew counter-gambit

1. e4 e5 2. Nf3 f5 3. Bc4 fxe4 4. Nxe5 Nf6 • C41 Philidor's defence

1. e4 e5 2. Nf3 d6 • C41 Philidor, Steinitz variation

1. e4 e5 2. Nf3 d6 3. Bc4 Be7 4. c3• C41 Philidor, Lopez counter-gambit

1. e4 e5 2. Nf3 d6 3. Bc4 f5 • C41 Philidor, Lopez counter-gambit, Jaenisch variation

1. e4 e5 2. Nf3 d6 3. Bc4 f5 4. d4 exd4 5. Ng5 Nh6 6. Nxh7• C41 Philidor's defence

1. e4 e5 2. Nf3 d6 3. d4• C41 Philidor, Philidor counter-gambit

1. e4 e5 2. Nf3 d6 3. d4 f5 • C41 Philidor, Philidor counter-gambit, del Rio attack

1. e4 e5 2. Nf3 d6 3. d4 f5 4. dxe5 fxe4 5. Ng5 d5 6. e6• C41 Philidor, Philidor counter-gambit, Berger variation

1. e4 e5 2. Nf3 d6 3. d4 f5 4. dxe5 fxe4 5. Ng5 d5 6. e6 Bc5 7. Nc3• C41 Philidor, Philidor counter-gambit, Zukertort variation

1. e4 e5 2. Nf3 d6 3. d4 f5 4. Nc3• C41 Philidor, exchange variation

1. e4 e5 2. Nf3 d6 3. d4 exd4 • C41 Philidor, Boden variation

1. e4 e5 2. Nf3 d6 3. d4 exd4 4. Qxd4 Bd7 • C41 Philidor, exchange variation

1. e4 e5 2. Nf3 d6 3. d4 exd4 4. Nxd4• C41 Philidor, Paulsen attack

1. e4 e5 2. Nf3 d6 3. d4 exd4 4. Nxd4 d5 5. exd5• C41 Philidor, exchange variation

1. e4 e5 2. Nf3 d6 3. d4 exd4 4. Nxd4 Nf6 • C41 Philidor, Berger variation

1. e4 e5 2. Nf3 d6 3. d4 exd4 4. Nxd4 Nf6 5. Nc3 Be7 6. Be2 O-O 7. O-O c5 8. Nf3 Nc6 9. Bg5 Be6 10. Re1

• C41 Philidor, Larsen variation

1. e4 e5 2. Nf3 d6 3. d4 exd4 4. Nxd4 g6 • C41 Philidor, Nimzovich (Jaenisch) variation

1. e4 e5 2. Nf3 d6 3. d4 Nf6 • C41 Philidor, Improved Hanham variation

1. e4 e5 2. Nf3 d6 3. d4 Nf6 4. Nc3 Nbd7

• C41 Philidor, Nimzovich, Sozin variation

1. e4 e5 2. Nf3 d6 3. d4 Nf6 4. Nc3 Nbd7 5. Bc4 Be7 6. O-O O-O 7. Qe2 c6 8. a4 exd4

• C41 Philidor, Nimzovich, Larobok variation

1. e4 e5 2. Nf3 d6 3. d4 Nf6 4. Nc3 Nbd7 5. Bc4 Be7 6. Ng5 O-O 7. Bxf7+• C41 Philidor, Nimzovich variation

1. e4 e5 2. Nf3 d6 3. d4 Nf6 4. dxe5• C41 Philidor, Nimzovich, Sokolsky variation

1. e4 e5 2. Nf3 d6 3. d4 Nf6 4. dxe5 Nxe4 5. Nbd2• C41 Philidor, Nimzovich, Rellstab variation

1. e4 e5 2. Nf3 d6 3. d4 Nf6 4. dxe5 Nxe4 5. Qd5• C41 Philidor, Nimzovich, Locock variation

1. e4 e5 2. Nf3 d6 3. d4 Nf6 4. Ng5• C41 Philidor, Nimzovich, Klein variation

1. e4 e5 2. Nf3 d6 3. d4 Nf6 4. Bc4• C41 Philidor, Hanham variation

1. e4 e5 2. Nf3 d6 3. d4 Nd7 • C41 Philidor, Hanham, Krause variation

1. e4 e5 2. Nf3 d6 3. d4 Nd7 4. Bc4 c6 5. O-O• C41 Philidor, Hanham, Steiner variation

1. e4 e5 2. Nf3 d6 3. d4 Nd7 4. Bc4 c6 5. O-O Be7 6. dxe5• C41 Philidor, Hanham, Kmoch variation

1. e4 e5 2. Nf3 d6 3. d4 Nd7 4. Bc4 c6 5. Ng5• C41 Philidor, Hanham, Berger variation

1. e4 e5 2. Nf3 d6 3. d4 Nd7 4. Bc4 c6 5. Ng5 Nh6 6. f4 Be7 7. O-O O-O 8. c3 d5 • C41 Philidor, Hanham, Schlechter variation

1. e4 e5 2. Nf3 d6 3. d4 Nd7 4. Bc4 c6 5. Nc3• C41 Philidor, Hanham, Delmar variation

1. e4 e5 2. Nf3 d6 3. d4 Nd7 4. Bc4 c6 5. c3• C42-C43 Petrov's defence

1. e4 e5 2. Nf3 Nf6 • C44 King's pawn game

1. e4 e5 2. Nf3 Nc6 • C44 Irish (Chicago) gambit

1. e4 e5 2. Nf3 Nc6 3. Nxe5 Nxe5 4. d4• C44 Konstantinopolsky opening

1. e4 e5 2. Nf3 Nc6 3. g3• C44 Dresden opening

1. e4 e5 2. Nf3 Nc6 3. c4• C44 Inverted Hungarian

1. e4 e5 2. Nf3 Nc6 3. Be2• C44 Inverted Hanham

1. e4 e5 2. Nf3 Nc6 3. Be2 Nf6 4. d3 d5 5. Nbd2• C44 Tayler opening

1. e4 e5 2. Nf3 Nc6 3. Be2 Nf6 4. d4• C44 Ponziani opening

1. e4 e5 2. Nf3 Nc6 3. c3• C44 Ponziani, Caro variation

1. e4 e5 2. Nf3 Nc6 3. c3 d5 4. Qa4 Bd7 • C44 Ponziani, Leonhardt variation

1. e4 e5 2. Nf3 Nc6 3. c3 d5 4. Qa4 Nf6 • C44 Ponziani, Steinitz variation

1. e4 e5 2. Nf3 Nc6 3. c3 d5 4. Qa4 f6 • C44 Ponziani, Jaenisch counter-attack

1. e4 e5 2. Nf3 Nc6 3. c3 Nf6 • C44 Ponziani, Fraser defence

1. e4 e5 2. Nf3 Nc6 3. c3 Nf6 4. d4 Nxe4 5. d5 Bc5 • C44 Ponziani, Reti variation

1. e4 e5 2. Nf3 Nc6 3. c3 Nge7 • C44 Ponziani, Romanishin variation

1. e4 e5 2. Nf3 Nc6 3. c3 Be7 • C44 Ponziani counter-gambit

1. e4 e5 2. Nf3 Nc6 3. c3 f5 • C44 Ponziani counter-gambit, Schmidt attack

1. e4 e5 2. Nf3 Nc6 3. c3 f5 4. d4 d6 5. d5• C44 Ponziani counter-gambit, Cordel variation

1. e4 e5 2. Nf3 Nc6 3. c3 f5 4. d4 d6 5. d5 fxe4 6. Ng5 Nb8 7. Nxe4 Nf6 8. Bd3 Be7 • C44 Scotch opening

1. e4 e5 2. Nf3 Nc6 3. d4• C44 Scotch, Lolli variation

1. e4 e5 2. Nf3 Nc6 3. d4 Nxd4 • C44 Scotch, Cochrane variation

1. e4 e5 2. Nf3 Nc6 3. d4 Nxd4 4. Nxe5 Ne6 5. Bc4 c6 6. O-O Nf6 7. Nxf7• C44 Scotch, Relfsson gambit ('MacLopez')

1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Bb5• C44 Scotch, Goering gambit

1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. c3• C44 Scotch, Sea-cadet mate

1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. c3 dxc3 5. Nxc3 d6 6. Bc4 Bg4 7. O-O Ne5 8. Nxe5 Bxd1 9. Bxf7+ Ke7 10. Nd5+

• C44 Scotch, Goering gambit

1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. c3 dxc3 5. Nxc3 Bb4 • C44 Scotch, Goering gambit, Bardeleben variation

1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. c3 dxc3 5. Nxc3 Bb4 6. Bc4 Nf6

• C44 Scotch gambit

1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Bc4• C44 Scotch gambit, Anderssen (Paulsen, Suhle) counter-attack

1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Bc4 Bc5 5. O-O d6 6. c3 Bg4 • C44 Scotch gambit

1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Bc4 Bc5 5. Ng5• C44 Scotch gambit, Cochrane-Shumov defence

1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Bc4 Bc5 5. Ng5 Nh6 6. Nxf7 Nxf7 7. Bxf7+ Kxf7 8. Qh5+ g6 9. Qxc5 d5

• C44 Scotch gambit, Vitzhum attack

1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Bc4 Bc5 5. Ng5 Nh6 6. Qh5• C44 Scotch gambit

1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Bc4 Bb4+ • C44 Scotch gambit, Hanneken variation

1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Bc4 Bb4+ 5. c3 dxc3 6. O-O cxb2 7. Bxb2 Nf6 8. Ng5 O-O 9. e5 Nxe5

• C44 Scotch gambit

1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Bc4 Bb4+ 5. c3 dxc3 6. bxc3• C44 Scotch gambit, Cochrane variation

1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Bc4 Bb4+ 5. c3 dxc3 6. bxc3 Ba5 7. e5• C44 Scotch gambit, Benima defence

1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Bc4 Be7 • C44 Scotch gambit, Dubois-Reti defence

1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Bc4 Nf6 • C45 Scotch game

1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4• C45 Scotch, Ghulam Kassim variation

1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Nxd4 5. Qxd4 d6 6. Bd3• C45 Scotch, Pulling counter-attack

1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Qh4 • C45 Scotch, Horwitz attack

1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Qh4 5. Nb5• C45 Scotch, Berger variation

1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Qh4 5. Nb5 Bb4+ 6. Nd2 Qxe4+ 7. Be2 Qxg2 8. Bf3 Qh3 9. Nxc7+ Kd8 10. Nxa8 Nf6 11. a3

• C45 Scotch game

1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Qh4 5. Nb5 Bb4+ 6. Bd2• C45 Scotch, Rosenthal variation

1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Qh4 5. Nb5 Bb4+ 6. Bd2 Qxe4+ 7. Be2 Kd8 8. O-O Bxd2 9. Nxd2 Qg6

• C45 Scotch, Fraser attack

1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Qh4 5. Nf3

• C45 Scotch, Steinitz variation

1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Qh4 5. Nc3• C45 Scotch, Schmidt variation

1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Nf6 • C45 Scotch, Mieses variation

1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Nf6 5. Nxc6 bxc6 6. e5• C45 Scotch, Tartakower variation

1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Nf6 5. Nxc6 bxc6 6. Nd2• C45 Scotch game

1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Bc5 • C45 Scotch, Blackburne attack

1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Bc5 5. Be3 Qf6 6. c3 Nge7 7. Qd2• C45 Scotch, Gottschall variation

1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Bc5 5. Be3 Qf6 6. c3 Nge7 7. Qd2 d5 8. Nb5Bxe3 9. Qxe3 O-O 10. Nxc7 Rb8 11. Nxd5 Nxd5 12. exd5 Nb4

• C45 Scotch, Paulsen attack

1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Bc5 5. Be3 Qf6 6. c3 Nge7 7. Bb5• C45 Scotch, Paulsen, Gunsberg defence

1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Bc5 5. Be3 Qf6 6. c3 Nge7 7. Bb5 Nd8 • C45 Scotch, Meitner variation

1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Bc5 5. Be3 Qf6 6. c3 Nge7 7. Nc2• C45 Scotch, Blumenfeld attack

1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Bc5 5. Be3 Qf6 6. Nb5• C45 Scotch, Potter variation

1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Bc5 5. Nb3• C45 Scotch, Romanishin variation

1. e4 e5 2. Nf3 Nc6 3. d4 exd4 4. Nxd4 Bc5 5. Nb3 Bb4+ • C46 Three knights game

1. e4 e5 2. Nf3 Nc6 3. Nc3• C46 Three knights, Schlechter variation

1. e4 e5 2. Nf3 Nc6 3. Nc3 Bb4 4. Nd5 Nf6 • C46 Three knights, Winawer defence (Gothic defence)

1. e4 e5 2. Nf3 Nc6 3. Nc3 f5 • C46 Three knights, Steinitz variation

1. e4 e5 2. Nf3 Nc6 3. Nc3 g6 • C46 Three knights, Steinitz, Rosenthal variation

1. e4 e5 2. Nf3 Nc6 3. Nc3 g6 4. d4 exd4 5. Nd5• C46 Four knights game

1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 • C46 Four knights, Schultze-Mueller gambit

1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Nxe5• C46 Four knights, Italian variation

1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. Bc4• C46 Four knights, Gunsberg variation

1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. a3• C47-C49 Four knights, Scotch variation

1. e4 e5 2. Nf3 Nc6 3. Nc3 Nf6 4. d4• C50 King's pawn game

1. e4 e5 2. Nf3 Nc6 3. Bc4• C50 Blackburne shilling gambit

1. e4 e5 2. Nf3 Nc6 3. Bc4 Nd4 4. Nxe5 Qg5 5. Nxf7 Qxg2 6. Rf1 Qxe4+ 7. Be2 Nf3+

• C50 Rousseau gambit

1. e4 e5 2. Nf3 Nc6 3. Bc4 f5 • C50 Hungarian defence

1. e4 e5 2. Nf3 Nc6 3. Bc4 Be7 • C50 Hungarian defence, Tartakower variation

1. e4 e5 2. Nf3 Nc6 3. Bc4 Be7 4. d4 exd4 5. c3 Nf6 6. e5 Ne4 • C50 Giuoco Piano

1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 • C50 Giuoco Piano, four knights variation

1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. Nc3 Nf6 • C50 Giuoco Piano, Jerome gambit

1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. Bxf7+• C50 Giuoco Pianissimo

1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. d3• C50 Giuoco Pianissimo, Dubois variation

1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. d3 f5 5. Ng5 f4 • C50 Giuoco Pianissimo

1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. d3 Nf6 • C50 Giuoco Pianissimo, Italian four knights variation

1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. d3 Nf6 5. Nc3• C50 Giuoco Pianissimo, Canal variation

1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. d3 Nf6 5. Nc3 d6 6. Bg5• C51-C52 Evans gambit

1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. b4• C53-C54 Giuoco Piano

1. e4 e5 2. Nf3 Nc6 3. Bc4 Bc5 4. c3• C55-C59 Two knights defence

1. e4 e5 2. Nf3 Nc6 3. Bc4 Nf6 • C60-C99 Ruy Lopez (Spanish opening)

1. e4 e5 2. Nf3 Nc6 3. Bb5• D00 Queen's pawn game

1. d4 d5

• D00 Queen's pawn, Mason variation

1. d4 d5 2. Bf4• D00 Queen's pawn, Mason variation, Steinitz counter-gambit

1. d4 d5 2. Bf4 c5 • D00 Levitsky attack (Queen's bishop attack)

1. d4 d5 2. Bg5• D00 Blackmar gambit

1. d4 d5 2. e4• D00 Queen's pawn, stonewall attack

1. d4 d5 2. e3 Nf6 3. Bd3• D00 Queen's pawn, Chigorin variation

1. d4 d5 2. Nc3• D00 Queen's pawn, Anti-Veresov

1. d4 d5 2. Nc3 Bg4 • D00 Blackmar-Diemer gambit

1. d4 d5 2. Nc3 Nf6 3. e4• D00 Blackmar-Diemer, Euwe defence

1. d4 d5 2. Nc3 Nf6 3. e4 dxe4 4. f3 exf3 5. Nxf3 e6 • D00 Blackmar-Diemer, Lemberg counter-gambit

1. d4 d5 2. Nc3 Nf6 3. e4 e5 • D01 Richter-Veresov attack

1. d4 d5 2. Nc3 Nf6 3. Bg5• D01 Richter-Veresov attack, Veresov variation

1. d4 d5 2. Nc3 Nf6 3. Bg5 Bf5 4. Bxf6• D01 Richter-Veresov attack, Richter variation

1. d4 d5 2. Nc3 Nf6 3. Bg5 Bf5 4. f3• D02 Queen's pawn game

1. d4 d5 2. Nf3• D02 Queen's pawn game, Chigorin variation

1. d4 d5 2. Nf3 Nc6 • D02 Queen's pawn game, Krause variation

1. d4 d5 2. Nf3 c5 • D02 Queen's pawn game

1. d4 d5 2. Nf3 Nf6 • D02 Queen's bishop game

1. d4 d5 2. Nf3 Nf6 3. Bf4• D03 Torre attack (Tartakower variation)

1. d4 d5 2. Nf3 Nf6 3. Bg5• D04-D05 Queen's pawn game

1. d4 d5 2. Nf3 Nf6 3. e3• D06 Queen's Gambit

1. d4 d5 2. c4

• D06 Queen's Gambit Declined, Grau (Sahovic) defence

1. d4 d5 2. c4 Bf5 • D06 Queen's Gambit Declined, Marshall defence

1. d4 d5 2. c4 Nf6 • D06 Queen's Gambit Declined, symmetrical (Austrian) defence

1. d4 d5 2. c4 c5 • D07-D09 Queen's Gambit Declined, Chigorin defence

1. d4 d5 2. c4 Nc6 • D10-D15 Queen's Gambit Declined Slav defence

1. d4 d5 2. c4 c6 • D16 Queen's Gambit Declined Slav accepted, Alapin variation

1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 dxc4 5. a4• D16 Queen's Gambit Declined Slav, Smyslov variation

1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 dxc4 5. a4 Na6 6. e4 Bg4 • D16 Queen's Gambit Declined Slav, Soultanbeieff variation

1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 dxc4 5. a4 e6 • D16 Queen's Gambit Declined Slav, Steiner variation

1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 dxc4 5. a4 Bg4 • D17-D19 Queen's Gambit Declined Slav, Czech defence

1. d4 d5 2. c4 c6 3. Nf3 Nf6 4. Nc3 dxc4 5. a4 Bf5 • D20-D29 Queen's gambit accepted

1. d4 d5 2. c4 dxc4 • D30-D42 Queen's gambit declined

1. d4 d5 2. c4 e6 • D43-D49 Queen's Gambit Declined semi-Slav

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Nf3 c6 • D50-D69 Queen's Gambit Declined, 4.Bg5

1. d4 d5 2. c4 e6 3. Nc3 Nf6 4. Bg5• D70-D79 Neo-Gruenfeld defence

1. d4 Nf6 2. c4 g6 3. f3 d5 • D80-D99 Gruenfeld defence

1. d4 Nf6 2. c4 g6 3. Nc3 d5 • E00 Queen's pawn game

1. d4 Nf6 2. c4 e6 • E00 Neo-Indian (Seirawan) attack

1. d4 Nf6 2. c4 e6 3. Bg5• E00 Catalan opening

1. d4 Nf6 2. c4 e6 3. g3• E01-E09 Catalan, closed

1. d4 Nf6 2. c4 e6 3. g3 d5 4. Bg2• E10 Queen's pawn game

1. d4 Nf6 2. c4 e6 3. Nf3

• E10 Blumenfeld counter-gambit

1. d4 Nf6 2. c4 e6 3. Nf3 c5 4. d5 b5 • E10 Blumenfeld counter-gambit accepted

1. d4 Nf6 2. c4 e6 3. Nf3 c5 4. d5 b5 5. dxe6 fxe6 6. cxb5 d5 • E10 Blumenfeld counter-gambit, Dus-Chotimursky variation

1. d4 Nf6 2. c4 e6 3. Nf3 c5 4. d5 b5 5. Bg5• E10 Blumenfeld counter-gambit, Spielmann variation

1. d4 Nf6 2. c4 e6 3. Nf3 c5 4. d5 b5 5. Bg5 exd5 6. cxd5 h6 • E10 Dzindzikhashvili defence

1. d4 Nf6 2. c4 e6 3. Nf3 a6 • E10 Doery defence

1. d4 Nf6 2. c4 e6 3. Nf3 Ne4 • E11 Bogo-Indian defence

1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ • E11 Bogo-Indian defence, Gruenfeld variation

1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Nbd2• E11 Bogo-Indian defence, Nimzovich variation

1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 Qe7 • E11 Bogo-Indian defence, Monticelli trap

1. d4 Nf6 2. c4 e6 3. Nf3 Bb4+ 4. Bd2 Bxd2+ 5. Qxd2 b6 6. g3 Bb7 7. Bg2 O-O 8. Nc3 Ne4 9. Qc2 Nxc3 10. Ng5

• E12-E19 Queen's Indian defence

1. d4 Nf6 2. c4 e6 3. Nf3 b6 • E20-E59 Nimzo-Indian defence

1. d4 Nf6 2. c4 e6 3. Nc3 Bb4 • E60-E99 King's Indian defence

1. d4 Nf6 2. c4 g6