Opening Trainer

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B20

Sicilian Defense

The most popular and aggressive response to 1.e4. Black fights for the center asymmetrically with c5, leading to rich, unbalanced positions with chances for both sides.

The most popular and aggressive response to 1.e4. Black fights for the center asymmetrically with c5, leading to rich, unbalanced positions with chances for both sides.

Modern VariationsMorphy GambitSicilian DefenseModern Variations, Main LineModern Variations, Anti-Qxd4 Move Order
C50

Italian Game

One of the oldest and most classical chess openings. White develops the bishop to c4, targeting the vulnerable f7 square, and aims to build a strong center. Leads to rich tactical and strategic play with many famous variations.

One of the oldest and most classical chess openings. White develops the bishop to c4, targeting the vulnerable f7 square, and aims to build a strong center.

Giuoco PianoTwo Knights DefenseClassical VariationGiuoco PianissimoGiuoco Pianissimo, Normal
C00

French Defense

A solid and strategic opening for Black that begins with 1.e4 e6. Black aims to build a strong pawn chain and challenge White's center with d5 on the next move, leading to rich positional and tactical battles.

A solid and strategic opening for Black that begins with 1.e4 e6.

Normal VariationFrench DefenseQueen's KnightPaulsen VariationWinawer Variation
C60

Ruy Lopez

One of the oldest and most classical chess openings, arising after 1.e4 e5 2.Nf3 Nc6 3.Bb5. White develops quickly and puts pressure on Black's defense of the e5 pawn through the pin on the knight. Rich in strategic and tactical possibilities at every level.

One of the oldest and most classical chess openings, arising after 1.e4 e5 2.Nf3 Nc6 3.Bb5. White develops quickly and puts pressure on Black's defense of the e5 pawn through the pin on the knight.

Morphy DefenseClosedBerlin DefenseRio Gambit AcceptedBerlin Defense, l'Hermet Variation
B10

Caro-Kann Defense

A solid and reliable opening for Black that begins with 1.e4 c6. Black prepares to challenge White's center with d5 on the next move, leading to a sound pawn structure and long-term strategic play.

A solid and reliable opening for Black that begins with 1.e4 c6. Black prepares to challenge White's center with d5 on the next move, leading to a sound pawn structure and long-term strategic play.

Advance VariationMain LineModern VariationAccelerated Panov AttackClassical Variation
D06

Queen's Gambit

One of the oldest and most respected openings. White offers a pawn on c4 to gain control of the center. Leads to strategic, positional games with long-term plans.

One of the oldest and most respected openings. White offers a pawn on c4 to gain control of the center. Leads to strategic, positional games with long-term plans.

Queen's Gambit AcceptedNormal VariationQueen's Gambit DeclinedQueen's Knight VariationThree Knights Variation
A10

English Opening

A flexible and strategic opening for White that begins with 1.c4. White controls the center from the flank, keeping options open for a wide range of pawn structures. Popular at all levels for its versatility and deep positional ideas.

A flexible and strategic opening for White that begins with 1.c4. White controls the center from the flank, keeping options open for a wide range of pawn structures.

Anglo-Indian DefenseWest Indian DefenseQueen's Knight VariationIndian Defense: Normal VariationKing's Indian Defense
C44

Scotch Game

A direct and aggressive opening for White that begins with 1.e4 e5 2.Nf3 Nc6 3.d4. White immediately strikes at the center, opening lines for active piece play. A popular alternative to the Italian Game and Ruy Lopez.

A direct and aggressive opening for White that begins with 1.e4 e5 2.Nf3 Nc6 3.d4. White immediately strikes at the center, opening lines for active piece play.

Haxo GambitSchmidt VariationClassical VariationScotch GambitMieses Variation
E60

King's Indian Defense

An aggressive and dynamic opening for Black that begins with 1.d4 Nf6 2.c4 g6. Black allows White to build a strong pawn center, then counterattacks it with moves like e5 or c5, leading to rich tactical and strategic battles.

An aggressive and dynamic opening for Black that begins with 1.d4 Nf6 2.c4 g6.

King's Indian DefenseNormal VariationKing's Indian Defense: Normal Variation, King's Knight VariationStandard DevelopmentRare Defenses
D00

London System

A solid and flexible opening system for White that begins with 1.d4 d5 2.Bf4. White develops the dark-squared bishop before playing e3, creating a sturdy pawn structure and reliable piece placement. Popular at all levels for its simplicity and consistency.

A solid and flexible opening system for White that begins with 1.d4 d5 2.Bf4. White develops the dark-squared bishop before playing e3, creating a sturdy pawn structure and reliable piece placement.

London SystemSteinitz CountergambitRapport-Jobava SystemMorris CountergambitAccelerated London System, Steinitz Countergambit, Morris Countergambit Accepted
B01

Scandinavian Defense

The Scandinavian Defense (1.e4 d5) is one of the oldest recorded openings in chess, offering Black an immediate challenge to White's central pawn. After 2.exd5 Qxd5, Black's queen enters the game early, leading to unique middlegame positions.

The Scandinavian Defense (1.e4 d5) is one of the oldest recorded openings in chess, offering Black an immediate challenge to White's central pawn. After 2.

French DefensePaulsen VariationWinawer VariationAdvance VariationCaro-Kann Defense
C30

King's Gambit

One of the most romantic and aggressive openings in chess. White sacrifices a pawn to seize the center and attack the kingside. Leads to sharp, tactical battles.

One of the most romantic and aggressive openings in chess. White sacrifices a pawn to seize the center and attack the kingside. Leads to sharp, tactical battles.

King's Gambit AcceptedKing's Knight's GambitKing's Gambit Declined: Falkbeer CountergambitFalkbeer Countergambit AcceptedMain Line
E20

Nimzo-Indian Defense

The Nimzo-Indian Defense (1.d4 Nf6 2.c4 e6 3.Nc3 Bb4) is one of the most respected and popular chess openings. Black pins White's knight to prevent e4, creating rich strategic battles over central control, pawn structure, and the bishop pair.

The Nimzo-Indian Defense (1.d4 Nf6 2.c4 e6 3.Nc3 Bb4) is one of the most respected and popular chess openings.

Rubinstein SystemNormal VariationClassical VariationNimzo-Indian DefenseNormal Variation, Ragozin Variation
A02

Bird's Opening

Bird's Opening (1.f4) is an aggressive flank opening named after Henry Bird. White immediately stakes a claim on the e5 square and prepares a kingside attack, though the early f-pawn advance slightly weakens the king's position.

Bird's Opening (1.f4) is an aggressive flank opening named after Henry Bird.

King's GambitDutch VariationKing's Gambit AcceptedKing's Knight's GambitKing's Gambit Declined: Falkbeer Countergambit