List of chess openings named after people

A

• Abonyi Variation of the Budapest Gambit – 1.d4 Nf6 2.c4 e5 3.dxe5 Ng4 4.e4 Nxe5 5.f4 Nec6 – named after István Abonyi;
• Adams Attack of the Sicilian Defence – 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.h3 – named after Weaver W. Adams;
• Adler Variation of the Budapest Gambit – 1.d4 Nf6 2.c4 e5 3.dxe5 Ng4 4.Nf3 – named after Adler;
• Alapin's Opening – 1.e4 e5 2.Ne2 – named after Semyon Alapin;
• Alapin Variation of the Sicilian Defence – 1.e4 c5 2.c3 – named after Semyon Alapin;
• Albin Countergambit – 1.d4 d5 2.c4 e5 – named after Adolf Albin;
• Alburt Variation of the Alekhine's Defence – 1.e4 Nf6 2.e5 Nd5 3.d4 d6 4.Nf3 g6 – named after Lev Alburt;
• Alekhine-Chatard Attack on the French Defence – 1.e4 e6 2.d4 d5 3.Nc3 Nf6 4.Bg5 Be7 5.e5 Nfd7 6.h4 – named after Alexander Alekhine and Eugene Chatard;
• Alekhine's Defence – 1.e4 Nf6 – named after Alexander Alekhine;
• Alekhine Variation of the Budapest Gambit – 1.d4 Nf6 2.c4 e5 3.dxe5 Ng4 4.e4 – named after Alexander Alekhine;
• Allgaier Gambit of the King's Gambit – 1.e4 e5 2.f4 exf4 3.Nf3 g5 4.h4 g4 5.Ng5 – named after Johann Baptist Allgaier;
• Anderssen's Opening – 1.a3 – named after Adolf Anderssen;
• Arkell-Khenkin Variation of the Caro-Kann Defense – 1.e4 c6 2.d4 d5 3.e5 c5 – named after Keith Arkell and Igor Khenkin;
• Averbakh System of the King's Indian Defence – 1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Be2 0-0 6.Bg5 – named after Yuri Averbakh;

  B

• Balogh Defense – 1.e4 d6 2.d4 f5 – named after János Balogh;
• Barcza System – 1.Nf3 d5 2.g3 – named after Gedeon Barcza;
• Barnes Opening – 1.f3 – named after Thomas Wilson Barnes;
• Basman Defence – 1.e4 g5 – named after Michael Basman;
• Becker Defense of the King's Gambit – 1.e4 e5 2.f4 exf4 3.Nf3 h6 – named after Albert Becker;
• Bellon Gambit - 1.c4 e5 2.Nc3 Nf6 3.Nf3 e4 4.Ng5 b5 - named after Juan Manuel Bellón López
• Benko Gambit – 1.d4 Nf6 2.c4 c5 3.d5 b5 – named after Pal Benko;
• Benko's Opening – 1.g3 – named after Pal Benko;
• Bird Defense of the Ruy Lopez – 1.e4 e5 2.Nf3 Nc6 3.Bb5 Nd4 – named after Henry Bird;
• Bird's Opening – 1.f4 – named after Henry Bird;
• Blackburne Shilling Gambit – 1.e4 e5 2.Nf3 Nc6 3.Bc4 Nd4 – named after Joseph Henry Blackburne;
• Blackmar-Diemer Gambit – 1.d4 d5 2.e4 dxe4 3.Nc3 – named after Armand Blackmar and Emil Josef Diemer;
• Blumenfeld Gambit – 1.d4 Nf6 2.c4 c5 3.d5 e6 4.Nf3 b5 – named after Benjamin Blumenfeld;
• Boden-Kieseritzky Gambit - 1.e4 e5 2.Bc4 Nf6 3.Nf3 Nxe4 4.Nc3 - named after Samuel Boden and Lionel Kieseritzky
• Bogoljubov Defense – 1.d4 Nf6 2.c4 Nc6 – named after Efim Bogoljubov
• Bogo-Indian Defense - 1.d4 Nf6 2.c4 e6 3.Nf3 Bb4+ - named after Efim Bogoljubov
• Boleslavsky Variation of the Sicilian Defence – 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Be2 e5 – named after Isaac Boleslavsky;
• Bonsch-Osmolovsky Defense of the King's Gambit – 1.e4 e5 2.f4 exf4 3.Nf3 Ne7 – named after Mikhail Bonsch-Osmolovsky;
• Botvinnik System of the Semi-Slav Defense – 1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 c6 5.Bg5 dxc4 6.e4 b5 – named after Mikhail Botvinnik;
• Botvinnik Variation of the English Opening – 1.c4 e5 2.Nc3 Nc6 3.g3 g6 4.Bg2 Bg7 5.e4 – named after Mikhail Botvinnik;
• Brentano Defense of the Ruy Lopez – 1.e4 e5 2.Nf3 Nc6 3.Bb5 g5 – named after Franz Brentano;
• Breyer Variation of the Ruy Lopez – 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 d6 9.h3 Nb8 – named after Gyula Breyer;
• Breyer Variation of the King's Gambit – 1.e4 e5 2.f4 exf4 3.Qf3 – named after Gyula Breyer;

  C

• Capablanca Variation of the Reti Opening – 1.Nf3 d5 2.c4 c6 3.b3 Nf6 4.Bb2 Bg4 – named after José Raúl Capablanca;
• Camara Defense – 1.e4 e5 2.Nf3 Qe7 – named after International Master Hélder Câmara.
• Caro-Kann Defence – 1.e4 c6 – named after Horatio Caro and Marcus Kann;
• Chekhover Variation of the Sicilian Defence – 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Qxd4 – named after Vitaly Chekhover;
• Chigorin Defence of the Queen's Gambit – 1.d4 d5 2.c4 Nc6 – named after Mikhail Chigorin;
• Chigorin Variation of the Ruy Lopez – 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 d6 9.h3 Na5 – named after Mikhail Chigorin;
• Chigorin Variation of the French Defence – 1.e4 e6 2.Qe2 – named after Mikhail Chigorin;
• Clemenz Opening – 1.h3 – named after Hermann Clemenz;
• Cochrane Gambit of the Petrov's Defence – 1.e4 e5 2.Nf3 Nf6 3.Nxe5 d6 4.Nxf7 – named after John Cochrane;
• Colle System – 1.d4 d5 2.Nf3 Nf6 3.e3 – named after Edgard Colle;
• Colman Variation of the Two Knights 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 – named after Eugene Ernest Colman;
• Cozio Defence of the Ruy Lopez – 1.e4 e5 2.Nf3 Nc6 3.Bb5 Nge7 – named after Carlo Cozio;
• Cunningham Defense of the King's Gambit – 1.e4 e5 2.f4 exf4 3.Nf3 Be7 – named after Alexander Cunningham;

  D

• Damiano Defence – 1.e4 e5 2.Nf3 f6 – named after Pedro Damiano;
• Desprez Opening – 1.h4 – named after Marcel Desprez;
• Dory Defence – 1.d4 Nf6 2.c4 e6 3.Nf3 Ne4 – named after Ladislaus Dory;
• Dunst Opening – 1.Nc3 – named after Ted A. Dunst;
• Durkin Opening – 1.Na3 – named after Robert Durkin;
• Duras Variation of the Ruy Lopez – 1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4. Ba4 d6 5.c4 – named after Oldřich Duras;

  E

• Eisenberg Gambit of the King's Gambit – 1.e4 e5 2.f4 exf4 3.Nh3 – named after Louis Eisenberg;
• Englund Gambit – 1.d4 e5 – named after Fritz Englund;
• Epishin Variation of the Benko Gambit – 1.d4 Nf6 2.c4 c5 3.d5 b5 4.cxb5 a6 5.bxa6 g6 6.Nc3 Bxa6 7.Nf3 d6 8.g3 Bg7 9.Bg2 Nbd7 10.Rb1 – named after Vladimir Epishin;
• Evans Gambit – 1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.b4 – named after William Davies Evans;

  F

• Fajarowicz Variation of the Budapest Gambit – 1.d4 Nf6 2.c4 e5 3.dxe5 Ne4 – named after Sammi Fajarowicz;
• Falkbeer Countergambit of the King's Gambit – 1.e4 e5 2.f4 d5 – named after Ernst Falkbeer;
• Fischer Defense of the King's Gambit – 1.e4 e5 2.f4 exf4 3.Nf3 d6 – named after Bobby Fischer;
• Fleissig Variation of the Scotch Game – 1.e4 e5 2.Nf3 Nc6 3.d4 exd4 4.Nxd4 Bc5 5.Be3 Qf6 6.c3 Nge7 7.Nc2 – named after Bernhard Fleissig;
• Flohr-Mikenas-Carls Variation of the English Opening – 1.c4 Nf6 2.Nc3 e6 3.e4 – named after Salo Flohr, Vladas Mikėnas and Carl Johan Margot Carls;
• Flohr Variation of the Caro-Kann Defence – 1.e4 c6 2.d4 d5 3.Nc3 dxe4 4.Nxe4 Bf5 5.Ng3 Bg6 6.Nh3 – named after Salo Flohr;
• Flohr Variation of the Grünfeld Defence – 1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Nf3 Bg7 5.Qa4+ – named after Salo Flohr;
• Frankenstein–Dracula Variation of the Vienna Game – 1.e4 e5 2.Nc3 Nf6 3.Bc4 Nxe4 – named after Frankenstein's monster and Count Dracula;
• From's Gambit of the Bird's Opening – 1.f4 e5 – named after Martin Severin From;
• Furman Variation of the Queen's Gambit Accepted – 1.d4 d5 2.c4 dxc4 3.Nf3 Nf6 4.e3 e6 5.Bxc4 c5 6.0-0 a6 7.dxc5 Bxc5 – named after Semyon Furman;

  G

• Gajewski Variation of the Ruy Lopez – 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 0-0 9.h3 Na5 10.Bc2 d5 – named after Grzegorz Gajewski;
• Glek Defense of the King's Indian Defence – 1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Nf3 0-0 6.Be2 e5 7.0-0 Na6 – named after Igor Glek;
• Glek Variation of the Four Knights Game – 1.e4 e5 2.Nf3 Nc6 3.Nc3 Nf6 4.g3 – named after Igor Glek;
• Gligoric – Taimanov Variation of the King's Indian Defence 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Nf3 0-0 6. Be2 e5 7. Be3 – named after Svetozar Gligorić and Mark Taimanov;
• Göring Gambit of the Scotch Game – 1.e4 e5 2.Nf3 Nc6 3.d4 exd4 4.c3 – named after Carl Göring;
• Goglidze Attack – 1.d4 Nf6 2.c4 g6 3.f3 d5 – named after Viktor Goglidze;
• Grivas Variation of the Sicilian Defence – 1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Qb6 – named after Efstratios Grivas;
• Grob's Attack – 1.g4 – named after Henri Grob;
• Gunderam Defense – 1.e4 e5 2.Nf3 Qe7 – named after Gerhard Gunderam;
• Gurgenidze Defense of the Modern Defense – 1.e4 g6 2.d4 Bg7 3.Nc3 c6 4.f4 d5 5.e5 h5 – named after Bukhuti Gurgenidze;
• Gurgenidze Variation of the Caro-Kann Defence – 1.e4 c6 2.d4 d5 3.Nc3 b5 – named after Bukhuti Gurgenidze;
• Gurgenidze Variation of the Sicilian Defence – 1.e4 c5 2.Nf3 Nc6 3.Bb5 g6 4.0-0 Bg7 5.Re1 e5 6.b4 – named after Bukhuti Gurgenidze;
• Gusev Countergambit of the Queen's Gambit Declined – 1.d4 d5 2.c4 c5 3.cxd5 Nf6 – named after Yuri Gusev;
• Grünfeld Defence – 1.d4 Nf6 2.c4 g6 3.Nc3 d5 – named after Ernst Grünfeld;

  H

• Hanham Variation of the Philidor Defense – 1.e4 e5 2.Nf3 d6 3.d4 Nd7 – named after James Hanham;
• Hodgson Attack – 1.d4 d5 2.Bg5 – named after Julian Hodgson;
• Hopton Attack of the Dutch Defence – 1.d4 f5 2.Bg5 – named after Hopton;
• Horwitz Defense - 1.d4 e6 - named after Bernhard Horwitz;
• Hromádka System of the Benoni Defence – 1.d4 Nf6 2.c4 c5 3.d5 d6 – named after Karel Hromádka;
• Hübner Variation of the Nimzo-Indian Defence – 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 c5 – named after Robert Hübner;

  I

• Ilyin-Genevsky Variation of the Dutch Defence – 1.d4 f5 2.c4 Nf6 3.g3 e6 4.Bg2 Be7 5.Nf3 0-0 6.0-0 d6 7.Nc3 Qe8 – named after Alexander Ilyin-Genevsky;

  J

• Janowski Variation of the Old Indian Defence – 1.d4 Nf6 2.c4 d6 3. Nc3 Bf5 – named after Dawid Janowski;
• Jasnogrodsky Defense of the Rice Gambit – 1.e4 e5 2.f4 exf4 3.Nf3 g5 4.h4 g4 5.Ne5 Nf6 6.Bc4 d5 7.exd5 Bd6 8.0-0 Bxe5 9.Re1 Qe7 10.c3 Nh5 – named after Nicolai Jasnogrodsky;
• Jerome Gambit of the Italian Game – 1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.Bxf7+ – named after Alonzo Wheeler Jerome;

  K

• Kan Variation of the Sicilian Defence – 1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 a6 – named after Ilya Kan;
• Karklins-Martinovsky Variation of the Petrov's Defence – 1.e4 e5 2.Nf3 Nf6 3.Nxe5 d6 4.Nd3 – named after Chicago masters Andrew Karklins and Eugene Martinovsky;
• Karpov Variation of the Ruy Lopez – 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 d6 9.h3 Nd7 – named after Anatoly Karpov;
• Katalymov Variation of the Sicilian Defence – 1.e4 c5 2.Nf3 b6 – named after Boris Katalymov;
• Keene Defense to the King's Gambit – 1.e4 e5 2.f4 Qh4+ 3.g3 Qe7 – named after Raymond Keene;
• Keres Attack of the Sicilian Defence – 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 e6 6.g4 – named after Paul Keres;
• Keres Defence – 1.d4 e6 2.c4 Bb4+ – named after Paul Keres;
• Keres Variation of the Sicilian Defence – 1.e4 c5 2.Ne2 – named after Paul Keres;
• Kevitz Variation of the English Opening – 1.c4 Nf6 2.Nc3 e6 3.e4 Nc6 – named after Alexander Kevitz;
• Kholmov Variation of the Ruy Lopez – 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 0-0 9.h3 Be6 – named after Ratmir Kholmov;
• Kieseritzky Gambit of the King's Gambit – 1.e4 e5 2.f4 exf4 3.Nf3 g5 4.h4 g4 5.Ne5 – named after Lionel Kieseritzky
• Knorre Variation of the Ruy Lopez – 1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.0-0 Nxe4 6.Nc3 – named after Viktor Knorre;
• Koltanowski Gambit of the Italian Game – 1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.0-0 Nf6 5.d4 – named after George Koltanowski;
• Kondratiyev Variation of the French Defence – 1.e4 e6 2.d4 d5 3.Nc3 Bb4 4.Bd3 c5 5.exd5 Qxd5 6.Bd2 – named after Pavel Kondratiyev;
• Konikowski Gambit of the Ruy Lopez – 1.e4 e5 2.Nf3 Nc6 3.Bb5 Bc5 4.c3 d5 – named after Jerzy Konikowski;
• Konstantinopolsky Opening – 1.e4 e5 2.Nf3 Nc6 3.g3 – named after Alexander Konstantinopolsky;
• Kopec System – 1. e4 c5 2. Bd3 – named after Danny Kopec;

  L

• Lamb Defense of the Blackmar-Diemer Gambit – 1.d4 d5 2.e4 dxe4 3.Nc3 Nf6 4.f3 Nc6 named after F. Lamb;
• Larsen's Opening – 1.b3 – named after Bent Larsen;
• Leko Gambit of the Anti-Grünfeld – 1.d4 Nf6 2.c4 g6 3.f3 e5 – named after Peter Leko;
• Leonhardt Variation of the Evans Gambit – 1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.b4 Bxb4 5.c3 Ba5 6.d4 b5 – named after Paul Saladin Leonhardt;
• Levenfish Variation of the Grünfeld Defence – 1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Nf3 Bg7 5.Qb3 dxc4 6.Qxc4 0-0 7.e4 b6 – named after Grigory Levenfish;
• Levenfish Attack in the Sicilian Defence, Dragon Variation – 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 g6 6.f4 – named after Grigory Levenfish;
• Levitsky Attack – 1.d4 d5 2.Bg5 – named after Stepan Levitsky;
• Lisitsin Gambit of the Zukertort Opening – 1.Nf3 f5 2.e4 – named after Georgy Lisitsin;
• Lolli Variation of the Two Knights Defense 1.e4 e5 2.Nf3 Nc6 3.Bc4 Nf6 4.Ng5 d5 5.exd5 Nxd5 6.d4 – named after Giambattista Lolli;
• Lopez Opening – 1.e4 e5 2.c3 – another name for the MacLeod Attack – not to be confused with the Ruy Lopez;
• Lucena Defence of the Ruy Lopez – 1.e4 e5 2.Nf3 Nc6 3.Bb5 Be7 – named after Luis Ramirez de Lucena;
• Lundin Defense – 1.d4 Nc6 – named after Erik Lundin;
• Lutikov Variation of the Grünfeld Defence – 1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.f3 – named after Anatoly Lutikov;
• Lutikov Variation of the Ruy Lopez – 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 d6 9.Bc2 – named after Anatoly Lutikov;

  M

• MacLeod Attack – 1.e4 e5 2.c3 – named after Nicholas MacLeod
• Makogonov System of the King's Indian Defence – 1.d4 Nf6 2. c4 g6 3.Nc3 Bg7 4.e4 d6 5.h3 – named after Vladimir Makogonov;
• Makogonov Variation of the Grünfeld Defence – 1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.e3 Bg7 5.Nf3 0-0 6.b4 – named after Vladimir Makogonov;
• Maróczy Bind of the Sicilian Defence – 1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 g6 5.c4 – named after Géza Maróczy;
• Marshall Attack of the Ruy Lopez – 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 – named after Frank Marshall;
• Marshall Defense to the Queen's Gambit – 1.d4 d5 2.c4 Nf6 – named after Frank Marshall;
• Marshall Gambit in the Semi-Slav Defense – 1.d4 d5 2.c4 e6 3.Nc3 c6 4.e4 dxe4 5.Nxe4 Bb4+ 6.Bd2 – named after Frank Marshall;
• Marshall Gambit of the Tarrasch Defense – 1.d4 d5 2.c4 e6 3.Nc3 c5 4.cxd5 exd5 5.e4 – named after Frank Marshall;
• Marshall Variation of the Sicilian Defence – 1.e4 c5 2.Nf3 e6 3.d4 d5 – named after Frank Marshall;
• Max Lange Attack of the Two Knights Defense – 1.e4 e5 2.Nf3 Nc6 3.Bc4 Nf6 4.d4 exd4 5.0-0 Bc5 6.e5 – named after Max Lange;
• McDonnell Gambit variation of the King's Gambit - 1.e4 e5 2.f4 exf4 3.Nf3 g5 4.Bc4 g4 6.Nc3. Named after Alexander McDonnell
• McCutcheon Variation of the French Defence – 1.e4 e6 2.d4 d5 3.Nc3 Nf6 4.Bg5 Bb4 – named after John Lindsay McCutcheon;
• Mieses Opening – 1.d3 – named after Jacques Mieses;
• Mikenas Variation of the Modern Benoni – 1.d4 Nf6 2.c4 c5 3.d5 e6 4.Nc3 exd5 5.cxd5 d6 6.e4 g6 7.f4 Bg7 8.e5 – named after Vladas Mikėnas;
• Miles Variation of the Queen's Indian Defense – 1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.Bf4 – named after Tony Miles;
• Moeller Attack of the Italian Game – 1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.c3 Nf6 5.d4 cxd4 6.cxd4 Bb4+ 7.Nc3 Nxe4 8.0-0 Bxc3 9.d5 – named after Jorgen Moeller;
• Monticelli Trap of the Bogo-Indian Defence – 1.d4 Nf6 2.c4 e6 3.Nf3 Bb4+ 4.Bd2 Bxd2+ 5.Qxd2 b6 6.g3 Bb7 7.Bg2 0-0 8.Nc3 Ne4 9.Qc2 Nxc3 10.Ng5 – named after Mario Monticelli;
• Morozevich Variation of the French Defence – 1.e4 e6 2.d4 d5 3.Nd2 Be7 – named after Alexander Morozevich;
• Morozevich Variation of the Slav Defence – 1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.Nc3 dxc4 5.a4 Bf5 6.Ne5 Ndb7 7.Nxc4 Qc7 8.g3 e5 9.dxe5 Nxe5 10.Bf4 Nfd7 11.Bg2 g5 – named after Alexander Morozevich
• Morphy Defense to the Ruy Lopez – 1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 – named after Paul Morphy;
• Morphy Gambit of the French Defence – 1.e4 e6 2.d4 d5 3.Nh3 – named after Paul Morphy;
• Muzio Gambit of the King's Gambit – 1.e4 e5 2.f4 exf4 3.Nf3 g5 4.Bc4 g4 5.0-0 gxf3 6.Qxf3 – named after Mutio d'Alessandro, a third-rate Neapolitan player, following a mistranslation by Jacob Sarratt of Alessandro Salvio.

  N

• Nadanian Attack of the Queen's Pawn Opening – 1.d4 Nf6 2.Nf3 h6 3.c4 g5 – named after Ashot Nadanian;
• Nadanian Variation of the Grünfeld Defence – 1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.cxd5 Nxd5 5.Na4 – named after Ashot Nadanian;
• Najdorf Variation of the Sicilian Defence – 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 – named after Miguel Najdorf;
• Napoleon Opening – 1.e4 e5 2.Qf3 – named after Napoleon Bonaparte;
• Nimzo-Indian Defence – 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 – named after Aron Nimzowitsch;
• Nimzowitsch Defence – 1.e4 Nc6 – named after Aron Nimzowitsch;
• Nimzowitsch Variation of the Sicilian Defense – 1.e4 c5 2.Nf3 Nf6 – named after Aron Nimzowitsch;
• Noteboom Variation of the Semi-Slav Defence – 1.d4 d5 2.c4 e6 3.Nc3 c6 4.Nf3 dxc4 – named after Daniël Noteboom;

  O

• O'Kelly Variation of the Sicilian Defence – 1.e4 c5 2.Nf3 a6 – named after Albéric O'Kelly de Galway;
• Opocensky Variation of the Grünfeld Defence – 1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.e3 Bg7 5.Nf3 0-0 6.Bd2 – named after Karel Opočenský;
• Opocensky Variation of the Sicilian Defence – 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Be2 – named after Karel Opočenský;
• Owen's Defense – 1.e4 b6 – named after John Owen;

  P

• Panov Attack of the Caro-Kann Defence – 1.e4 c6 2.d4 d5 3.exd5 cxd5 4.c4 – named after Vasily Panov;
• Parham Attack – 1.e4 e5 2.Qh5 – named after Bernard Parham;
• Paulsen Attack of the Petrov's Defence – 1.e4 e5 2.Nf3 Nf6 3.Nxe5 d6 4.Nc4 – named after Louis Paulsen;
• Petrosian Variation of the King's Indian Defence – 1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Nf3 0-0 6.Be2 e5 7.d5 – named after Tigran Petrosian;
• Petrosian Variation of the Queen's Indian Defense – 1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.a3 – named after Tigran Petrosian;
• Perenyi Attack of the Sicilian Defence – 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 e6 6.Be3 a6 7.g4 e5 8.Nf5 g6 9.g5 – named after Bela Perenyi;
• Petrov Defense – 1.e4 e5 2.Nf3 Nf6 – named after Alexander Petrov;
• Philidor Countergambit – 1.e4 e5 2.Nf3 d6 3.d4 f5 – named after François-André Danican Philidor;
• Philidor Defence – 1.e4 e5 2.Nf3 d6 – named after François-André Danican Philidor;
• Pirc Defence – 1.e4 d6 2.d4 Nf6 3.Nc3 g6 – named after Vasja Pirc;
• Pollock's Defense to the Ruy Lopez – 1.e4 e5 2.Nf3 Nc6 3.Bb5 Na5 – named after William Pollock;
• Polugaevsky Variation of the Sicilian Defence – 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6 6.Bg5 e6 7.f4 b5 – named after Lev Polugaevsky;
• Ponziani Opening – 1.e4 e5 2.Nf3 Nc6 3.c3 – named after Domenico Lorenzo Ponziani;
• Popov Variation of the Ruy Lopez – 1.e4 e5 2.Nf3 Nc6 3.Bb5 a5 – named after Bulgarian correspondence player Popov;
• Prie Attack of the Queen's Pawn Opening – 1.d4 d5 2.a3 – named after Éric Prié;
• Puc Variation of the Nimzo-Indian Defence – 1.d4 Nf6 2.c4 e6 3. Nc3 Bb4 4.e3 c6; – named after Stojan Puc;

  Q

• Quinteros Variation of the Sicilian Defence – 1.e4 c5 2.Nf3 Qc7 – named after Miguel Quinteros;

  R

• Ragozin Defence of the Queen's Gambit – 1.d4 d5 2.c4 e6 3.Nf3 Nf6 4.Nc3 Bb4 – named after Viacheslav Ragozin;
• Réti Opening – 1.Nf3 – named after Richard Réti;
• Rice Gambit of the King's Gambit – 1.e4 e5 2.f4 exf4 3.Nf3 g5 4.h4 g4 5.Ne5 Nf6 6.Bc4 d5 7.exd5 Bd6 8.0-0 – named after Isaac Rice;
• Richter-Veresov Attack – 1.d4 d5 2.Nc3 Nf6 3.Bg5 – named after Kurt Richter and Gavriil Veresov;
• Richter-Rauzer Attack in the Sicilian Defense – 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 Nc6 6.Bg5 e6 7.Qd2 – named after Kurt Richter and Vsevolod Rauzer;
• Riumin Variation of the Queen's Indian Defense – 1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.g3 Bb7 5.Bg2 Bb4+ 6.Bd2 Be7 named after Nikolai Riumin;
• Robatsch Defence – 1.e4 g6 2.d4 Bg7 – named after Karl Robatsch;
• Rossolimo Variation of the Sicilian Defence – 1.e4 c5 2.Nf3 Nc6 3.Bb5 – named after Nicolas Rossolimo;
• Rousseau Gambit – 1.e4 e5 2.Nf3 Nc6 3.Bc4 f5 4.d3 – named after Eugène Rousseau;
• Rubinstein Variation of the French Defence – 1.e4 e6 2.d4 d5 3.Nc3 dxe4 – named after Akiba Rubinstein;
• Rubinstein Variation of the Budapest Gambit – 1.d4 Nf6 2.c4 e5 3.dxe4 Ng4 4.Bf4 – named after Akiba Rubinstein;
• Rubinstein Variation of the Nimzo-Indian Defence – 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4.e3 – named after Akiba Rubinstein;
• Rubinstein Variation of the Four Knights Game – 1.e4 e5 2.Nf3 Nc6 3.Nc3 Nf6 4.Bb5 Nd4 – named after Akiba Rubinstein;
• Ruy Lopez – 1.e4 e5 2.Nf3 Nc6 3.Bb5 – named after Ruy López de Segura;

  S

• Sämisch Variation of the King's Indian Defence – 1.d4 Nf6 2. c4 g6 3.Nc3 Bg7 4.e4 d6 5.f3 – named after Friedrich Sämisch;
• Sämisch Variation of the Nimzo-Indian Defence – 1.d4 Nf6 2. c4 e6 3.Nc3 Bb4 4.a3 – named after Friedrich Sämisch;
• Santasiere's Folly – 1. Nf3 Nf6 2. b4 – named after Anthony Santasiere;
• Schallopp Defense of the King's Gambit – 1.e4 e5 2.f4 exf4 3.Nf3 Nf6 – named after Emil Schallopp;
• Schlechter-Rubinstein System of the Tarrasch Defence – 1.d4 d5 2.c4 e6 3.Nc3 c5 4.cxd5 exd5 5.Nf3 Nc6 6.g3 – named after Carl Schlecter and Akiba Rubinstein;
• Schlechter Variation of the French Defence – 1.e4 e6 2.d4 d5 3.Bd3 – named after Carl Schlecter;
• Schlechter Variation of the Grunfeld Defence – 1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.e3 c6 – named after Carl Schlecter;
• Schlechter Variation of the Slav Defence – 1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.Nc3 g6 – named after Carl Schlecter;
• Schlechter Gambit of the Bird's Opening – 1.f4 e5 2.fxe5 Nc6 – named after Carl Schlecter;
• Schliemann-Jaenisch Gambit of the Ruy Lopez – 1.e4 e5 2.Nf3 Nc6 3.Bb5 f5 – named after Carl Jaenisch and Adolf Karl Wilhelm Schliemann;
• Semi-Tarrasch Defense of the Queen's Gambit Declined – 1.d4 d5 2.c4 e6 3.Nc3 Nf6 4.Nf3 c5 – named after Siegbert Tarrasch
• Shabalov-Shirov Gambit of the Semi-Slav Defense – 1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.Nc3 e6 5.e3 Nbd7 6.Qc2 Bd6 7.g4 – named after Alexander Shabalov and Alexei Shirov
• Short variation of the Caro-Kann Defence advance - 1. e4 c6 2. d4 d5 3. e5 Bf5 4. c3 e6 5. Be2 - named after Nigel Short
• Smith-Morra Gambit of the Sicilian Defence – 1.e4 c5 2.d4 cxd4 3.c3 dxc3 4.Nxc3 – named after Texas master Ken Smith and Morra;
• Smyslov Variation of the Grünfeld Defence – 1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.Nf3 Bg7 5.Qb3 dxc4 6.Qxc4 0-0 7.e4 Bg4 – named after Vasily Smyslov;
• Smyslov Variation of the Ruy Lopez – 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 – named after Vasily Smyslov;
• Snyder Variation of the Sicilian Defence – 1.e4 c5 2.b3 – named after Robert Snyder;
• Sokolsky Opening – 1.b4 – named after Alexey Sokolsky;
• Soldatenkov Variation of the King's Gambit – 1.e4 e5 2.f4 Bc5 3.Nf3 d6 4.fxe5 – named after Vasily Soldatenkov;
• Soltis Variation of the Yugoslav Attack – 1. e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 g6 6. Be3 Bg7 7.f3 0-0 8.Qd2 Nc6 9.Bc4 Bd7 10.0-0-0 Rc8 11.Bb3 Ne5 12.h4 h5 – named after Andrew Soltis.
• Soultanbeieff Variation of Slav Defence – 1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.Nc3 dxc4 5.a4 e6 Victor Soultanbeieff;
• Sozin–Fischer Attack of the Sicilian Defence – 1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6 6.Bc4 e6 7.Be3 Be7 8.Bb3 0-0 9.0-0 – named after Veniamin Sozin and Bobby Fischer;
• Spielmann Variation of the Caro-Kann Defence – 1.e4 c6 2.Nc3 d5 3.Qf3 – named after Rudolph Spielmann;
• Stamma Gambit of the King's Gambit – 1.e4 e5 2.f4 exf4 3.h4; – named after Philipp Stamma;
• Staunton Gambit of the Dutch Defence – 1.d4 f5 2.e4 – named after Howard Staunton;
• Steinitz Defense of the Ruy Lopez – 1.e4 e5 2.Nf3 Nc6 3.Bb5 d6 – named after Wilhelm Steinitz;
• Steinitz Gambit of the Vienna Game – 1.e4 e5 2.Nc3 Nc6 3.f4 – named after Wilhelm Steinitz;
• Steinitz Variation of the Petrov Defense – 1.e4 e5 2.Nf3 Nf6 3.d4 – named after Wilhelm Steinitz;
• Steinitz Variation of the Sicilian Defence – 1.e4 c5 2.g3 – named after Wilhelm Steinitz;
• Sveshnikov Variation of the Sicilian Defence – 1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 e5 – named after Evgeny Sveshnikov;
• Szén Variation of the Sicilian Defence – 1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 5.Nb5 – named after József Szén;

  T

• Taimanov Variation of the Sicilian Defence – 1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nc6 – named after Mark Taimanov;
• Tarrasch Defense – 1.d4 d5 2.c4 e6 3.Nc3 c5 – named after Siegbert Tarrasch;
• Tarrasch Variation of the French Defence – 1.e4 e6 2.d4 d5 3.Nd2 – named after Siegbert Tarrasch;
• Tennison Gambit – 1.Nf3 d5 2.e4 – named after Otto Tennison;
• Torre Attack – 1.d4 Nf6 2.Nf3 e6 3.Bg5 – named after Carlos Torre;
• Traxler Variation of the Two Knights Defence – 1.e4 e5 2.Nf3 Nc6 3.Bc4 Nf6 4.Ng5 Bc5 – named after Karel Traxler;
• Trompowsky Attack – 1.d4 Nf6 2.Bg5 – named after Octavio Trompowsky;

  U

• Ufimtsev Defence – 1.e4 d6 2.d4 Nf6 3.Nc3 g6 – named after Anatoly Ufimtsev;
• Uhlmann-Szabo System
• Urusov Gambit - 1.e4 e5 2.Bc4 Nf6 3.d4 exd4 4.Nf3 - named after the Russian Prince Sergey Urusov

  V

• Van 't Kruijs Opening – 1.e3 – named after Maarten van 't Kruijs;
• Velimirovic Attack of the Sicilian Defence – 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 e6 6.Bc4 Nc6 7.Be3 Be7 8.Qe2 – named after Dragoljub Velimirović;
• Villemson Gambit of the King's Gambit – 1.e4 e5 2.f4 exf4 3.d4 – named after Martin Villemson;
• Vinogradov Variation of the Ruy Lopez – 1.e4 e5 2.Nf3 Nc6 3.Bb5 Qe7 – named after Vinogradov;
• Vitolins Variation of the Sicilian Defence – 1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 e6 6.Bb5+ – named after Alvis Vitolinš;

  W

• Wade Defence – 1.d4 d6 2.Nf3 Bg4 – named after Robert Wade;
• Wagner Gambit of the Swiss Gambit – 1.f4 f5 2.e4 fxe4 3.Nc3 Nf6 4.g4 – named after Alexander Wagner;
• Ware Opening – 1.a4 – named after Preston Ware;
• Ware defense – 1. e4 a5 – named after Preston Ware
• Winawer Variation of the French Defence – 1.e4 e6 2.d4 d5 3.Nc3 Bb4 – named after Simon Winawer;
• Wolf Gambit of the French Defence – 1.e4 e6 2.d4 d5 3.Nc3 Nf6 4.Bg5 Bb4 5.Nge2;
• Worrall Attack of the Ruy Lopez – 1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4.Ba4 Nf6 5.Qe2 – named after Thomas Herbert Worrall;

  X

Y

Z

• Zaitsev Gambit of the Grünfeld Defence – 1.d4 Nf6 2.c4 g6 3.Nc3 d5 4.h4 – named after Alexander Zaitsev;
• Zaitsev Variation of the Ruy Lopez – 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 0-0 9.h3 Bb7 – named after Igor Zaitsev;
• Zilbermints Gambit of the Englund Gambit – 1.d4 e5 2.dxe5 Nc6 3.Nf3 Nge7 – named after Lev Zilbermints;
• Zvjaginsev Variation of the Sicilian Defence – 1.e4 c5 2.Na3 – named after Vadim Zvjaginsev;