Chess Wiki
Chess Openings Wiki
Opening families, variations, plans, pawn structures, and practical decisions for both sides.
Accelerated Dragon Sicilian: Plans, Moves and Common Mistakes
Learn Accelerated Dragon Sicilian from move order and resulting pawn structure; compare the move order, pawn break and defensive reply...
OpeningsAlapin Sicilian: Plans, Moves and Common Mistakes
Learn Alapin Sicilian from move order and resulting pawn structure; compare the move order, pawn break and defensive reply before choosing a plan.
OpeningsAlbin Countergambit: Aggressive …e5 vs the Queen’s Gambit
Learn the Albin Countergambit: …e5 against 1.d4 d5 2.c4, the d4 wedge, compensation ideas, and practical defensive methods for White.
OpeningsAlekhine Defense: Plans, Moves and Common Mistakes
Learn Alekhine Defense from move order and resulting pawn structure; compare the move order, pawn break and defensive reply before choosing a plan.
OpeningsAnti-Sicilian Plans: Plans, Moves and Common Mistakes
Learn Anti-Sicilian Plans from move order and resulting pawn structure; compare the move order, pawn break and defensive reply before choosing a...
OpeningsBenko Gambit: Plans, Moves and Common Mistakes
Learn Benko Gambit from move order and resulting pawn structure; compare the move order, pawn break and defensive reply before choosing a plan.
OpeningsBenoni Defense: Plans, Moves and Common Mistakes
Learn Benoni Defense from move order and resulting pawn structure; compare the move order, pawn break and defensive reply before choosing a plan.
OpeningsBird Opening: Plans, Moves and Common Mistakes
Learn Bird Opening from move order and resulting pawn structure; compare the move order, pawn break and defensive reply before choosing a plan.
OpeningsBishop’s Opening: Flexible Plans after 1.e4 e5 2.Bc4
Play the Bishop’s Opening: early Bc4 ideas, Italian and Vienna transpositions, practical attacking chances, and solid development plans.
OpeningsBlackmar–Diemer Gambit: Practical Attacking Ideas
Understand the Blackmar–Diemer Gambit: f3 ideas after 1.d4 d5 2.e4, compensation concepts, and solid ways for Black to consolidate.
OpeningsBogo-Indian Defense: Solid Plans with …Bb4+
Learn the Bogo-Indian: …Bb4+ against 1.d4 Nf6 2.c4 e6 3.Nf3, structures after Bd2/Nbd2, and how it pairs with the Queen’s Indian.
OpeningsBudapest Gambit: Plans, Moves and Common Mistakes
Learn Budapest Gambit from move order and resulting pawn structure; compare the move order, pawn break and defensive reply before choosing a plan.
OpeningsCaro-Kann Defense: Plans for Club Players
Play the Caro-Kann Defense with club-ready plans: solid structure, Advance/Classical/Panov branches, piece placement, and common mistakes.
OpeningsCaro-Kann Advance: Plans, Moves and Common Mistakes
Learn Caro-Kann Advance from move order and resulting pawn structure; compare the move order, pawn break and defensive reply before choosing a plan.
OpeningsCaro-Kann Classical: Plans, Moves and Common Mistakes
Learn Caro-Kann Classical from move order and resulting pawn structure; compare the move order, pawn break and defensive reply before choosing a...
OpeningsCaro-Kann Panov: Plans, Moves and Common Mistakes
Learn Caro-Kann Panov from move order and resulting pawn structure; compare the move order, pawn break and defensive reply before choosing a plan.
OpeningsCatalan Opening: Plans, Moves and Common Mistakes
Learn Catalan Opening from move order and resulting pawn structure; compare the move order, pawn break and defensive reply before choosing a plan.
OpeningsChigorin Defense: Plans, Moves and Common Mistakes
Learn Chigorin Defense from move order and resulting pawn structure; compare the move order, pawn break and defensive reply before choosing a plan.
OpeningsClassical Sicilian: Plans, Moves and Common Mistakes
Learn Classical Sicilian from move order and resulting pawn structure; compare the move order, pawn break and defensive reply before choosing a plan.
OpeningsClosed Sicilian: Plans, Moves and Common Mistakes
Learn Closed Sicilian from move order and resulting pawn structure; compare the move order, pawn break and defensive reply before choosing a plan.
OpeningsColle System: Plans, Moves and Common Mistakes
Learn Colle System from move order and resulting pawn structure; compare the move order, pawn break and defensive reply before choosing a plan.
OpeningsDanish Gambit: Plans, Moves and Common Mistakes
Learn Danish Gambit from move order and resulting pawn structure; compare the move order, pawn break and defensive reply before choosing a plan.
OpeningsDragon Sicilian: Plans, Moves and Common Mistakes
Learn Dragon Sicilian from move order and resulting pawn structure; compare the move order, pawn break and defensive reply before choosing a plan.
OpeningsDutch Defense: Plans, Moves and Common Mistakes
Learn Dutch Defense from move order and resulting pawn structure; compare the move order, pawn break and defensive reply before choosing a plan.
OpeningsLeningrad Dutch: Kingside Plans with …g6 and …f5
Play the Leningrad Dutch: fianchetto structures with …f5 and …g6, central breaks, attacking patterns, and key defensive ideas for White.
OpeningsDutch Stonewall: Plans, Moves and Common Mistakes
Learn Dutch Stonewall from move order and resulting pawn structure; compare the move order, pawn break and defensive reply before choosing a plan.
OpeningsBotvinnik System in the English: Space and Clamp Plans
Play the Botvinnik English: c4/e4 clamps, knight outposts, space strategies, and Black’s counterplay with …b5 or …f5.
OpeningsEnglish Opening: Control the Center from the Flank
Learn the English Opening: flank control with c4, Symmetrical and Botvinnik structures, central breaks, and flexible transpositions.
OpeningsSymmetrical English: Plans after 1.c4 c5
Learn the Symmetrical English: …c5 structures, long maneuvering plans, break ideas with b4/d4, and practical setups for both colors.
OpeningsEvans Gambit: Plans, Moves and Common Mistakes
Learn Evans Gambit from move order and resulting pawn structure; compare the move order, pawn break and defensive reply before choosing a plan.
OpeningsFour Knights Game: Plans, Moves and Common Mistakes
Learn Four Knights Game from move order and resulting pawn structure; compare the move order, pawn break and defensive reply before choosing a plan.
OpeningsFrench Advance: Plans, Moves and Common Mistakes
Learn French Advance from move order and resulting pawn structure; compare the move order, pawn break and defensive reply before choosing a plan.
OpeningsFrench Defense: Plans, Pawn Chains, and Breaks
Learn the French Defense through pawn chains, …c5 and …f6 breaks, Winawer vs Advance choices, and practical plans for both sides.
OpeningsFrench Exchange: Plans, Moves and Common Mistakes
Learn French Exchange from move order and resulting pawn structure; compare the move order, pawn break and defensive reply before choosing a plan.
OpeningsFrench Tarrasch: Plans, Moves and Common Mistakes
Learn French Tarrasch from move order and resulting pawn structure; compare the move order, pawn break and defensive reply before choosing a plan.
OpeningsFrench Winawer: Plans, Moves and Common Mistakes
Learn French Winawer from move order and resulting pawn structure; compare the move order, pawn break and defensive reply before choosing a plan.
OpeningsFried Liver Attack: Plans, Moves and Common Mistakes
Learn Fried Liver Attack from move order and resulting pawn structure; compare the move order, pawn break and defensive reply before choosing a plan.
OpeningsWhat Is a Gambit in Chess?
Understand chess gambits: compensation types, when to accept or decline, and links to practical gambit openings on 1chess.online.
OpeningsGiuoco Piano: Plans, Moves and Common Mistakes
Learn Giuoco Piano from move order and resulting pawn structure; compare the move order, pawn break and defensive reply before choosing a plan.
OpeningsGrand Prix Attack: Anti-Sicilian Kingside Plans
Play the Grand Prix Attack vs the Sicilian: f4 setups, kingside attacks, piece placement, and Black’s best central defensive plans.
OpeningsGrünfeld Defense: Plans, Moves and Common Mistakes
Learn Grünfeld Defense from move order and resulting pawn structure; compare the move order, pawn break and defensive reply before choosing a plan.
OpeningsGrünfeld Exchange: Plans, Moves and Common Mistakes
Learn Grünfeld Exchange from move order and resulting pawn structure; compare the move order, pawn break and defensive reply before choosing a plan.
OpeningsHalloween Gambit: Plans, Moves and Common Mistakes
Learn Halloween Gambit from move order and resulting pawn structure; compare the move order, pawn break and defensive reply before choosing a plan.
OpeningsHow to Choose an Opening Repertoire: Plans, Moves and Common Mistakes
Learn How to Choose an Opening Repertoire from move order and resulting pawn structure; compare the move order, pawn break and...
OpeningsItalian Game: Plans and Ideas for Both Sides
Learn the Italian Game with practical plans: Giuoco Piano structures, Two Knights tactics, Pianissimo maneuvering, and common attacking patterns.
OpeningsItalian Pianissimo: Modern Slow Italian Plans
Learn the Italian Pianissimo: d3 systems, slow improvement, c3/d4 preparation, Black equalizing plans, and modern club-level setups.
OpeningsJobava London System: Dynamic Plans with Nc3 and Bf4
Play the Jobava London with Nc3 and Bf4: early piece pressure, Nb5 ideas, …c5/…Qb6 reactions, and how it differs from the classical c3 London.
OpeningsKalashnikov Sicilian: Plans, Moves and Common Mistakes
Learn Kalashnikov Sicilian from move order and resulting pawn structure; compare the move order, pawn break and defensive reply before choosing...
OpeningsKan Sicilian: Plans, Moves and Common Mistakes
Learn Kan Sicilian from move order and resulting pawn structure; compare the move order, pawn break and defensive reply before choosing a plan.
OpeningsKing's Gambit: Plans, Moves and Common Mistakes
Learn King's Gambit from move order and resulting pawn structure; compare the move order, pawn break and defensive reply before choosing a plan.
OpeningsKing's Indian Attack: Plans, Moves and Common Mistakes
Learn King's Indian Attack from move order and resulting pawn structure; compare the move order, pawn break and defensive reply before choosing...
OpeningsKing's Indian Classical: Plans, Moves and Common Mistakes
Learn King's Indian Classical from move order and resulting pawn structure; compare the move order, pawn break and defensive reply before...
OpeningsKing's Indian Sämisch: Plans, Moves and Common Mistakes
Learn King's Indian Sämisch from move order and resulting pawn structure; compare the move order, pawn break and defensive reply before...
OpeningsKing's Pawn Opening: Plans, Moves and Common Mistakes
Learn King's Pawn Opening from move order and resulting pawn structure; compare the move order, pawn break and defensive reply before choosing a...
OpeningsKing's Indian Defense: Competing Plans
Play the King’s Indian Defense with competing plans: kingside attacks, central breaks, Classical and Sämisch structures, and practical study paths.
OpeningsLarsen Attack: Plans, Moves and Common Mistakes
Learn Larsen Attack from move order and resulting pawn structure; compare the move order, pawn break and defensive reply before choosing a plan.
OpeningsLondon System Without Autopilot
Play the London System without autopilot: Bf4 setups, e4/c4 breaks, Black’s …c5 and …Qb6 ideas, and when to prefer Jobava move orders.
OpeningsLondon System Against Early ...c5: Plans, Moves and Common Mistakes
Learn London System Against Early ...c5 from move order and resulting pawn structure; compare the move order, pawn break and...
OpeningsMax Lange Attack: Sharp Central Pressure in Open Games
Learn the Max Lange Attack: sharp open-game pressure, typical tactics, defensive resources for Black, and common Italian/Two Knights move orders.
OpeningsModern Benoni: Plans, Moves and Common Mistakes
Learn Modern Benoni from move order and resulting pawn structure; compare the move order, pawn break and defensive reply before choosing a plan.
OpeningsModern Defense: Plans, Moves and Common Mistakes
Learn Modern Defense from move order and resulting pawn structure; compare the move order, pawn break and defensive reply before choosing a plan.
OpeningsNajdorf Sicilian: Plans, Moves and Common Mistakes
Learn Najdorf Sicilian from move order and resulting pawn structure; compare the move order, pawn break and defensive reply before choosing a plan.
OpeningsNimzo-Indian Defense: Plans, Moves and Common Mistakes
Learn Nimzo-Indian Defense from move order and resulting pawn structure; compare the move order, pawn break and defensive reply before choosing...
OpeningsNimzo-Indian Rubinstein: Plans, Moves and Common Mistakes
Learn Nimzo-Indian Rubinstein from move order and resulting pawn structure; compare the move order, pawn break and defensive reply before...
OpeningsNimzowitsch Defense: Plans, Moves and Common Mistakes
Learn Nimzowitsch Defense from move order and resulting pawn structure; compare the move order, pawn break and defensive reply before choosing a...
OpeningsOpen Sicilian: Plans, Moves and Common Mistakes
Learn Open Sicilian from move order and resulting pawn structure; compare the move order, pawn break and defensive reply before choosing a plan.
OpeningsOwen's Defense: Plans, Moves and Common Mistakes
Learn Owen's Defense from move order and resulting pawn structure; compare the move order, pawn break and defensive reply before choosing a plan.
OpeningsPetrov Defense: Active Equality, Not Passive Symmetry
Handle the Petrov Defense as more than passive equality: active piece play, solid structures, and practical plans for both sides.
OpeningsPhilidor Defense: Plans, Moves and Common Mistakes
Learn Philidor Defense from move order and resulting pawn structure; compare the move order, pawn break and defensive reply before choosing a plan.
OpeningsAustrian Attack against the Pirc: Critical f4 Plans
Face the Pirc with the Austrian Attack: f4 space, central tension, attacking patterns for White, and reliable defensive setups for Black.
OpeningsPirc Defense: Invite the Center, Then Counter
Play the Pirc Defense: invite the center, strike back with …e5/…c5, handle the Austrian Attack, and compare it with the Modern and KID.
OpeningsQueen's Gambit Accepted: Plans, Moves and Common Mistakes
Learn Queen's Gambit Accepted from move order and resulting pawn structure; compare the move order, pawn break and defensive reply before...
OpeningsQueen's Gambit Declined: Plans, Moves and Common Mistakes
Learn Queen's Gambit Declined from move order and resulting pawn structure; compare the move order, pawn break and defensive reply before...
OpeningsQueen's Indian Petrosian System: Plans, Moves and Common Mistakes
Learn Queen's Indian Petrosian System from move order and resulting pawn structure; compare the move order, pawn break and defensive...
OpeningsQueen's Pawn Opening: Plans, Moves and Common Mistakes
Learn Queen's Pawn Opening from move order and resulting pawn structure; compare the move order, pawn break and defensive reply before choosing...
OpeningsQueen's Gambit: Plans Behind the Central Battle
Understand the Queen’s Gambit: c4 pressure on d5, Accepted vs Declined structures, Slav borderlines, and plans for both colors.
OpeningsQueen's Indian Defense: Control e4 with a Plan
Learn the Queen’s Indian Defense: control e4 with …b6, coordinate with Nimzo move orders, Petrosian ideas, and solid queenside structures.
OpeningsRagozin Defense: Dynamic Queen’s Gambit Plans
Play the Ragozin: …Bb4 and …Nf6 ideas in Queen’s Gambit move orders, central tension, dynamic equality plans, and club-level study priorities.
OpeningsRéti Opening: Plans, Moves and Common Mistakes
Learn Réti Opening from move order and resulting pawn structure; compare the move order, pawn break and defensive reply before choosing a plan.
OpeningsRossolimo Sicilian: Plans, Moves and Common Mistakes
Learn Rossolimo Sicilian from move order and resulting pawn structure; compare the move order, pawn break and defensive reply before choosing a plan.
OpeningsRuy López: Pressure, Development, and Plans
Master Ruy López plans: pressure on e5, Berlin and Closed structures, Marshall ideas, and which Spanish branch fits your style.
OpeningsRuy Lopez Berlin Defense: Plans, Moves and Common Mistakes
Learn Ruy Lopez Berlin Defense from move order and resulting pawn structure; compare the move order, pawn break and defensive reply before...
OpeningsClosed Ruy López: Main-Line Plans for Both Sides
Learn Closed Ruy López plans: maneuvering behind e4/e5, knight tours, …c5/…d5 breaks, anti-Marshall ideas, and club-level study priorities.
OpeningsRuy Lopez Exchange: Plans, Moves and Common Mistakes
Learn Ruy Lopez Exchange from move order and resulting pawn structure; compare the move order, pawn break and defensive reply before choosing a plan.
OpeningsRuy Lopez Marshall Attack: Plans, Moves and Common Mistakes
Learn Ruy Lopez Marshall Attack from move order and resulting pawn structure; compare the move order, pawn break and defensive reply before...
OpeningsOpen Ruy López: Active Piece Play with …Nxe4
Play the Open Ruy López: …Nxe4 lines, open-center tactics, piece activity for Black, and how White recovers material with initiative.
OpeningsScandinavian Defense: Plans After 1.e4 d5
Learn the Scandinavian Defense for club play: …Qa5/…Qd6/…Qd8 structures, White tempi on the queen, solid shells, and practical break timing.
OpeningsScheveningen Sicilian: Small Center Plans for Black
Learn the Scheveningen: …e6 and …d6 small center, flexible piece play, English Attack ideas for White, and practical …d5 timing.
OpeningsSchliemann Defense (Jaenisch): Early …f5 vs the Ruy López
Play the Schliemann/Jaenisch: early …f5 against the Ruy López, tactical themes, structural risks, and practical responses for White.
OpeningsScotch Gambit: Plans, Moves and Common Mistakes
Learn Scotch Gambit from move order and resulting pawn structure; compare the move order, pawn break and defensive reply before choosing a plan.
OpeningsScotch Game: Open the Center with a Plan
Play the Scotch Game with open-center plans: early d4, piece activity, Scotch Gambit ideas, and practical attacking patterns.
OpeningsSemi-Slav Defense: Plans, Moves and Common Mistakes
Learn Semi-Slav Defense from move order and resulting pawn structure; compare the move order, pawn break and defensive reply before choosing a plan.
OpeningsSicilian Defense: A Practical Map of the Opening
Map the Sicilian Defense for club players: Open Sicilian structure, d5 and c-file plans, main systems, and which variation to study first.
OpeningsChebanenko Slav: Flexible …a6 Plans for Black
Learn the Chebanenko Slav: early …a6 ideas, flexible structures, queenside expansion, and how it differs from classical Slav main lines.
OpeningsSlav Defense: A Sound Structure with Active Plans
Build a Slav Defense repertoire: solid …c6 structures, free bishop development, Exchange lines, Chebanenko ideas, and Semi-Slav borders.
OpeningsSlav Exchange: Plans, Moves and Common Mistakes
Learn Slav Exchange from move order and resulting pawn structure; compare the move order, pawn break and defensive reply before choosing a plan.
OpeningsSmith-Morra Gambit: Plans, Moves and Common Mistakes
Learn Smith-Morra Gambit from move order and resulting pawn structure; compare the move order, pawn break and defensive reply before choosing a plan.
OpeningsStonewall Attack: Plans, Moves and Common Mistakes
Learn Stonewall Attack from move order and resulting pawn structure; compare the move order, pawn break and defensive reply before choosing a plan.
OpeningsSveshnikov Sicilian: Plans, Moves and Common Mistakes
Learn Sveshnikov Sicilian from move order and resulting pawn structure; compare the move order, pawn break and defensive reply before choosing a...
OpeningsTaimanov Sicilian: Plans, Moves and Common Mistakes
Learn Taimanov Sicilian from move order and resulting pawn structure; compare the move order, pawn break and defensive reply before choosing a plan.
OpeningsTarrasch Defense: IQP Plans in the Queen’s Gambit
Learn the Tarrasch Defense: early …c5, isolated queen’s pawn structures, piece activity for Black, and how White blockades and pressures the IQP.
OpeningsTrompowsky Attack: Plans, Moves and Common Mistakes
Learn Trompowsky Attack from move order and resulting pawn structure; compare the move order, pawn break and defensive reply before choosing a plan.
OpeningsTwo Knights Defense: Plans, Moves and Common Mistakes
Learn Two Knights Defense from move order and resulting pawn structure; compare the move order, pawn break and defensive reply before choosing a...
OpeningsVienna Gambit: Plans, Moves and Common Mistakes
Learn Vienna Gambit from move order and resulting pawn structure; compare the move order, pawn break and defensive reply before choosing a plan.
OpeningsVienna Game: Flexible Development and the f4 Break
Learn the Vienna Game: flexible Nc3 development, f4 gambit ideas, solid positional lines, and how it compares to Italian and Scotch.
OpeningsWing Gambit: Plans, Moves and Common Mistakes
Learn Wing Gambit from move order and resulting pawn structure; compare the move order, pawn break and defensive reply before choosing a plan.