Chess Puzzles by Opening

Sicilian Defense

Bowdler Attack
Old Sicilian
Closed
Alapin Variation
Najdorf Variation
Modern Variations
Smith-Morra Gambit
McDonnell Attack
Taimanov Variation
Open
French Variation
Nyezhmetdinov-Rossolimo Attack
Accelerated Dragon
Dragon Variation
Kan Variation
Smith-Morra Gambit Accepted
Löwenthal Variation
Lasker-Pelikan Variation
Delayed Alapin Variation
Four Knights Variation
O'Kelly Variation
Grand Prix Attack
Wing Gambit
Hyperaccelerated Fianchetto
Hyperaccelerated Dragon
Classical Variation
Staunton-Cochrane Variation
Moscow Variation
Smith-Morra Gambit Declined
Scheveningen Variation
Mengarini Variation
Chekhover Variation
Nimzowitsch Variation
Snyder Variation
Kalashnikov Variation
Marshall Counterattack
Sozin Attack
Franco-Sicilian Variation
Richter-Rauzer Variation
Pin Variation
Kramnik Variation
Hyperaccelerated Pterodactyl
Lasker-Dunne Attack
Morphy Gambit
Paulsen-Basman Defense
Godiva Variation
Smith-Morra Gambit Deferred
Prins Variation
Keres Variation
Katalimov Variation
Drazic Variation
Portsmouth Gambit
Wing Gambit Deferred
Jalalabad Variation
Flohr Variation
Nimzo-American Variation
Kveinis Variation
Boleslavsky Variation
Bücker Variation
Myers Attack
Halasz Gambit
Venice Attack
Quinteros Variation
Kupreichik Variation

French Defense

Advance Variation
Exchange Variation
Knight Variation
Tarrasch Variation
Normal Variation
Winawer Variation
Rubinstein Variation
Classical Variation
La Bourdonnais Variation
Queen's Knight
Two Knights Variation
Steiner Variation
King's Indian Attack
Franco-Sicilian Defense
Steinitz Variation
Schlechter Variation
Horwitz Attack
Steinitz Attack
Paulsen Variation
Wing Gambit
Burn Variation
Orthoschnapp Gambit
Mediterranean Defense
Chigorin Variation
Alekhine-Chatard Attack
St. George Defense
MacCutcheon Variation
Diemer-Duhm Gambit Accepted
Alapin Gambit
Perseus Gambit
Réti-Spielmann Attack
Pelikan Variation
Franco-Hiva Gambit
Diemer-Duhm Gambit
Carlson Gambit
Bird Invitation

Queen's Pawn Game

Accelerated London System
Chigorin Variation
Zukertort Variation
London System
Colle System
Symmetrical Variation
Modern Defense
Levitsky Attack
Krause Variation
Torre Attack
Anti-Torre
Stonewall Attack
Mason Attack
Veresov Attack
Anglo-Slav Opening
Hübsch Gambit
Veresov
Barry Attack

Italian Game

Two Knights Defense
Classical Variation
Giuoco Pianissimo
Anti-Fried Liver Defense
Giuoco Piano
Evans Gambit
Scotch Gambit
Blackburne-Kostić Gambit
Hungarian Defense
Rousseau Gambit
Paris Defense
Evans Gambit Declined
Deutz Gambit
Rosentreter Gambit
Jerome Gambit
Bird's Attack
Scotch Invitation Declined

Caro-Kann Defense

Advance Variation
Exchange Variation
Two Knights Attack
Classical Variation
Panov Attack
Hillbilly Attack
Maróczy Variation
Accelerated Panov Attack
Tartakower Variation
Main Line
Karpov Variation
Breyer Variation
Campomanes Attack
Rasa-Studier Gambit
Forgacs Variation
Endgame Offer
Euwe Attack
von Hennig Gambit
Goldman Variation
Bronstein-Larsen Variation
Alekhine Gambit
Modern Variation
Apocalypse Attack
Ulysses Gambit
Gurgenidze System
Alien Gambit

Scandinavian Defense

Mieses-Kotroc Variation
Modern Variation
Main Line
Valencian Variation
Gubinsky-Melts Defense
Icelandic-Palme Gambit
Panov Transfer
Blackburne Gambit
Marshall Variation
Boehnke Gambit
Blackburne-Kloosterboer Gambit
Portuguese Gambit
Kloosterboer Gambit
Bronstein Variation
Lasker Variation
Classical Variation
Kiel Variation
Anderssen Counterattack
Schiller-Pytel Variation
Richter Variation

Queen's Gambit Declined

Marshall Defense
Albin Countergambit
Exchange Variation
Chigorin Defense
Modern Variation
Ragozin Defense
Queen's Knight Variation
Baltic Defense
Three Knights Variation
Normal Defense
Harrwitz Attack
Semi-Tarrasch Defense
Austrian Defense
Tarrasch Defense
Traditional Variation
Vienna Variation
Orthodox Defense
Janowski Variation
Neo-Orthodox Variation
Barmen Variation
Charousek Variation
Cambridge Springs Defense
Three Knights
Tartakower Defense
Austrian Attack
Capablanca Variation
Been-Koomen Variation
Pseudo-Tarrasch Variation
Alapin Variation
Lasker Defense
Anti-Tartakower Variation

English Opening

King's English Variation
Symmetrical Variation
Anglo-Indian Defense
Agincourt Defense
Anglo-Scandinavian Defense
Caro-Kann Defensive System
Great Snake Variation
The Whale
Carls-Bremen System
Mikenas-Carls Variation
Anglo-Dutch Defense
Four Knights System
Anglo-Grünfeld Defense
Anglo-Lithuanian Variation
Jaenisch Gambit
Neo-Catalan
Mikenas-Carls

Ruy Lopez

Morphy Defense
Berlin Defense
Steinitz Defense
Classical Variation
Exchange Variation
Bird Variation
Cozio Defense
Schliemann Defense
Closed
Open
Marshall Attack
Nürnberg Variation
Spanish Countergambit
Fianchetto Defense
Open Berlin Defense
Vinogradov Variation

Scotch Game

Scotch Gambit
Classical Variation
Schmidt Variation
Göring Gambit
Haxo Gambit
Lolli Variation
Benima Defense
Mieses Variation
Potter Variation
Modern Defense
Malaniuk Variation
Blumenfeld Attack
Steinitz Variation
Ghulam-Kassim Variation
Relfsson Gambit
Paulsen Attack
Vitzthum Attack

Indian Defense

Budapest Defense
Normal Variation
London System
Anti-Nimzo-Indian
Knights Variation
Wade-Tartakower Defense
Spielmann-Indian
West Indian Defense
Reversed Chigorin Defense
Seirawan Attack
Przepiorka Variation
Tartakower Attack
Pawn Push Variation
Omega Gambit
Colle System
Czech-Indian
King's Indian Variation
Anti-Grünfeld
Maddigan Gambit
Pseudo-Benko

Philidor Defense

Exchange Variation
Lion Variation
Hanham Variation
Morphy Gambit
Nimzowitsch Variation
Lopez Countergambit
Philidor Countergambit
Bird Gambit
Steinitz Variation
Larsen Variation
Albin-Blackburne Gambit

King's Gambit Accepted

MacLeod Defense
Fischer Defense
King's Knight's Gambit
Bishop's Gambit
Cunningham Defense
Modern Defense
Schallopp Defense
Abbazia Defense
Kieseritzky Gambit
Becker Defense
Muzio Gambit
Blachly Gambit
Salvio Gambit
Rosentreter Gambit
Bonsch-Osmolovsky Variation
Allgaier Gambit
Hanstein Gambit
Double Muzio Gambit
Traditional Variation
Lolli Gambit
Ghulam-Kassim Gambit
Sörensen Gambit

Four Knights Game

Italian Variation
Spanish Variation
Scotch Variation Accepted
Scotch Variation
Halloween Gambit
Gunsberg Variation

Modern Defense

Standard Defense
Two Knights Variation
Standard Line
Three Pawns Attack
Mongredien Defense
Averbakh System
Geller's System
Pseudo-Austrian Attack
Norwegian Defense
Bishop Attack
Kotov Variation
Beefeater Variation
Modern Pterodactyl

Zukertort Opening

Tennison Gambit
Sicilian Invitation
Black Mustang Defense
Queen's Gambit Invitation
Kingside Fianchetto
Slav Invitation
Pirc Invitation
Queenside Fianchetto Variation
Dutch Variation
Old Indian Attack
Nimzo-Larsen Variation
Lemberger Gambit
Ross Gambit
Reversed Mexican Defense
Quiet System
Wade Defense
Lisitsyn Gambit
Reversed Grünfeld
The Walrus
Herrstrom Gambit
Vos Gambit
Arctic Defense
Lisitsyn Gambit Deferred
Polish Defense

Bishop's Opening

Berlin Defense
Vienna Hybrid
Boi Variation
Ponziani Gambit
Urusov Gambit
Philidor Counterattack
Boden-Kieseritzky Gambit
Calabrese Countergambit
Lewis Gambit
Khan Gambit
Philidor Variation
Warsaw Gambit
Stein Gambit

Pirc Defense

Classical Variation
Austrian Attack
Byrne Variation
Kholmov System
Roscher Gambit
Bayonet Attack

Vienna Game

Vienna Gambit
Stanley Variation
Max Lange Defense
Anderssen Defense
Falkbeer Variation
Frankenstein-Dracula Variation
Omaha Gambit
Mieses Variation
Paulsen Variation
Mengarini Variation

Slav Defense

Exchange Variation
Three Knights Variation
Modern Line
Quiet Variation
Slav Gambit
Geller Gambit
Schlechter Variation
Czech Variation
Diemer Gambit
Bonet Gambit
Chebanenko Variation
Alekhine Variation
Two Knights Attack
Winawer Countergambit
Alapin Variation

King's Pawn Game

Busch-Gass Gambit
Leonardis Variation
McConnell Defense
Wayward Queen Attack
Napoleon Attack
Maróczy Defense
Damiano Defense
Tayler Opening
MacLeod Attack
King's Head Opening
Gunderam Gambit
Beyer Gambit
Alapin Opening
Dresden Opening
Mengarini's Opening
Clam Variation
Tortoise Opening

Queen's Gambit Accepted

Old Variation
Central Variation
Saduleto Variation
Normal Variation
Rosenthal Variation
Showalter Variation
Classical Defense
Gunsberg Defense
Accelerated Mannheim Variation
Janowski-Larsen Variation
Alekhine Defense
Slav Gambit

Benoni Defense

Old Benoni
Benoni Gambit Accepted
French Benoni
Modern Variation
Benoni-Indian Defense
Hromádka System
King's Pawn Line
Classical Variation
Czech Benoni Defense
Semi-Benoni
Weenink Variation
Four Pawns Attack

King's Indian Defense

Normal Variation
Orthodox Variation
Fianchetto Variation
Sämisch Variation
Four Pawns Attack
Smyslov Variation
Zinnowitz Variation
Makogonov Variation
Semi-Classical Variation
Accelerated Averbakh Variation
Semi-Averbakh System
Larsen Variation
Averbakh Variation
Petrosian Variation
Kramer Variation
Exchange Variation
Steiner Attack

Nimzowitsch Defense

Scandinavian Variation
Kennedy Variation
Declined Variation
Franco-Nimzowitsch Variation
Williams Variation
Colorado Countergambit Accepted
Mikenas Variation
Colorado Countergambit
French Connection
Pseudo-Spanish Variation

Nimzo-Larsen Attack

Modern Variation
Classical Variation
Indian Variation
English Variation
Symmetrical Variation
Dutch Variation
Spike Variation

Alekhine Defense

Scandinavian Variation
Modern Variation
Normal Variation
Four Pawns Attack
Exchange Variation
Maróczy Variation
Two Pawns Attack
Sämisch Attack
Balogh Variation
Mokele Mbembe
Krejcik Variation
Brooklyn Variation
O'Sullivan Gambit
Hunt Variation

Horwitz Defense

King's Gambit Declined

Queen's Knight Defense
Falkbeer Countergambit
Classical Variation
Falkbeer Countergambit Accepted
Petrov's Defense
Miles Defense
Mafia Defense
Keene's Defense
Panteldakis Countergambit
Keene Defense
Classical
Norwalde Variation

Owen Defense

Smith Gambit

Bird Opening

Dutch Variation
From's Gambit
Williams Gambit
Schlechter Gambit
Lasker Variation
Wagner-Zwitersch Gambit
Sturm Gambit

Dutch Defense

Queen's Knight Variation
Raphael Variation
Rubinstein Variation
Classical Variation
Hopton Attack
Normal Variation
Staunton Gambit
Staunton Gambit Accepted
Leningrad Variation
Fianchetto Attack
Krejcik Gambit
Blackmar's Second Gambit
Stonewall Variation

Nimzo-Indian Defense

Classical Variation
Three Knights Variation
Leningrad Variation
Normal Variation
Sämisch Variation
Kmoch Variation
Spielmann Variation
St. Petersburg Variation
Romanishin Variation
Reshevsky Variation

Englund Gambit

Hartlaub-Charlick Gambit
Main Line
Soller Gambit
Felbecker Gambit
Soller Gambit Deferred
Stockholm Variation

Van't Kruijs Opening

Semi-Slav Defense

Accelerated Move Order
Main Line
Marshall Gambit
Noteboom Variation
Normal Variation
Chigorin Defense
Stoltz Variation
Botvinnik Variation
Anti-Moscow Gambit
Meran Variation
Quiet Variation
Accelerated Meran Variation

Center Game

Normal Variation
Kieseritzky Variation
Paulsen Attack Variation
Berger Variation
von der Lasa Gambit
Halasz-McDonnell Gambit
Hall Variation
Lanc-Arnold Gambit

Hungarian Opening

Indian Defense
Slav Formation
Sicilian Invitation
Catalan Formation
Symmetrical Variation
Reversed Modern Defense
Dutch Defense

Ponziani Opening

Jaenisch Counterattack
Neumann Gambit
Ponziani Countergambit
Spanish Variation
Vukovic Gambit

Three Knights Opening

Winawer Defense
Steinitz Defense

Elephant Gambit

Paulsen Countergambit
Maróczy Gambit

Petrov's Defense

Stafford Gambit
Italian Variation
Three Knights Game
Modern Attack
Damiano Variation
Classical Attack
Nimzowitsch Attack
Cochrane Gambit
Cozio Attack

Polish Opening

Czech Defense
King's Indian Variation
Bugayev Attack
Outflank Variation
Schiffler-Sokolsky Variation
Baltic Defense
Birmingham Gambit

Blackmar-Diemer Gambit

von Popiel Gambit
Zeller Defense
Blackmar Gambit
Netherlands Variation
Lemberger Countergambit
Fritz Attack

Grünfeld Defense

Exchange Variation
Three Knights Variation
Stockholm Variation
Brinckmann Attack
Russian Variation

Rat Defense

Small Center Defense
Harmonist
English Rat
Antal Defense
Balogh Defense
Accelerated Gurgenidze

King's Indian Attack

Symmetrical Defense
French Variation
Sicilian Variation
Keres Variation
Wahls Defense
Yugoslav Variation
Double Fianchetto

Trompowsky Attack

Classical Defense
Raptor Variation
Edge Variation
Borg Variation

English Defense

King's Gambit

Rapport-Jobava System

Danish Gambit

Grob Opening

Grob Gambit
Spike
Grob Gambit Declined
Spike Attack

Danish Gambit Accepted

Copenhagen Defense
Classical Defense
Schlechter Defense
Chigorin Defense

Van Geet Opening

Reversed Nimzowitsch
Napoleon Attack
Dunst-Perrenet Gambit
Grünfeld Defense
Berlin Gambit
Sicilian Two Knights

King's Knight Opening

Normal Variation
Konstantinopolsky

Tarrasch Defense

Symmetrical Variation
Two Knights Variation
Schara Gambit
Classical Variation
Prague Variation

Old Indian Defense

Czech Variation
Ukrainian Variation
Two Knights Variation
Janowski Variation
Tartakower-Indian

Englund Gambit Declined

Reversed French
Reversed Krebs
Reversed Alekhine

Réti Opening

Réti Accepted
Advance Variation
Anglo-Slav Variation
Reversed Blumenfeld Gambit

Catalan Opening

Closed
Open Defense
Closed Variation

Mieses Opening

Reversed Rat

Queen's Indian Defense

Kasparov Variation
Classical Variation
Fianchetto Variation
Kasparov-Petrosian Variation
Spassky System
Petrosian Variation
Capablanca Variation

London System

Latvian Gambit

Mlotkowski Variation
Mason Countergambit
Fraser Defense
Mayet Attack
Greco Variation

St. George Defense

Polish Variation

Blackmar-Diemer Gambit Accepted

Teichmann Defense
Ryder Gambit
Euwe Defense
Ziegler Defense

Torre Attack

Classical Defense
Fianchetto Defense

Czech Defense

Mikenas Defense

Lithuanian Variation

Duras Gambit

Saragossa Opening

East Indian Defense

Latvian Gambit Accepted

Main Line
Bilguer Variation

Richter-Veresov Attack

Benko Gambit

Zaitsev System

Yusupov-Rubinstein System

Vienna Gambit, with Max Lange Defense

Knight Variation

Neo-Grünfeld Defense

Classical Variation
Delayed Exchange Variation

Bogo-Indian Defense

Exchange Variation
Grünfeld Variation
Nimzowitsch Variation
Wade-Smyslov Variation

Danish Gambit Declined

Sörensen Defense

Benko Gambit Accepted

Fully Accepted Variation
Modern Variation
Pawn Return Variation

Pterodactyl Defense

Eastern
Western
Queen Pterodactyl
Sicilian

Anderssen's Opening

Blackmar-Diemer Gambit Declined

Vienna Defense
O'Kelly Defense
Lamb Defense
Weinsbach Defense

Kádas Opening

Borg Defense

Borg Gambit

King's Pawn Opening

Slav Indian

Polish Defense

Lion Defense

Anti-Philidor
Lion's Jaw

Queen's Gambit

Queen's Indian Accelerated

Mexican Defense

Blumenfeld Countergambit

Ware Opening

Barnes Opening

Walkerling

Canard Opening

Rubinstein Opening

Ware Defense

Goldsmith Defense

Barnes Defense

Clemenz Opening

Rapport-Jobava System, with e6

Pseudo Queen's Indian Defense

Carr Defense

Kangaroo Defense

Keres Defense

Paleface Attack

Portuguese Opening

Wade Defense

Gunderam Defense

Benko Gambit Declined

Main Line

Amar Opening

Amazon Attack

Lasker Simul Special

Semi-Slav Defense Accepted

Robatsch Defense

Center Game Accepted

Hippopotamus Defense

Sodium Attack

Fried Fox Defense

Creepy Crawly Formation

Classical Defense

Lemming Defense