ChessCrumbs

ChessCrumbs

Opening Theory Library

Browse and practice chess openings. Select any opening to start learning its theory.

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198 openings found

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A00

Uncommon Opening

1. a3...

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A00

Van Geet Opening: Sicilian Two Knights

1. Nc3 c5 2. Nf3 Nc6...

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A01

Nimzo-Larsen Attack

1. b3...

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A02

Bird's Opening

1. f4...

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A04

Reti Opening

1. Nf3...

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A05

Reti Opening: King's Indian Attack

1. Nf3 Nf6 2. g3...

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A06

Reti Opening: Quiet System

1. Nf3 d5...

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A07

King's Indian Attack

1. Nf3 d5 2. g3...

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A09

Reti Opening: Advance Variation

1. Nf3 d5 2. c4...

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A10

English Opening

1. c4...

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A13

English Opening: Agincourt Defense

1. c4 e6...

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A15

English Opening: Anglo-Indian Defense

1. c4 Nf6...

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A16

English Opening: Anglo-Indian Defense, Queen's Knight Variation

1. c4 Nf6 2. Nc3...

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A17

English Opening: Hedgehog Defense

1. c4 Nf6 2. Nc3 e6...

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A20

English Opening: King's English Variation

1. c4 e5...

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A21

English Opening: King's English, Reversed Sicilian

1. c4 e5 2. Nc3...

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A25

English Opening: Closed System

1. c4 e5 2. Nc3 Nc6...

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A30

English Opening: Symmetrical Variation

1. c4 c5...

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A40

Queen's Pawn Opening

1. d4...

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A41

Queen's Pawn: Wade Defense

1. d4 d6...

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A43

Old Benoni Defense

1. d4 c5...

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A43

Benoni Defense: Old Benoni

1. d4 c5 2. d5 g6...

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A45

Queen's Pawn: Indian Defense

1. d4 Nf6...

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A46

Queen's Pawn: Indian Defense, Knights Variation

1. d4 Nf6 2. Nf3...

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A48

London System

1. d4 Nf6 2. Nf3 g6...

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A50

Indian Defense

1. d4 Nf6 2. c4...

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A51

Budapest Gambit

1. d4 Nf6 2. c4 e5...

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A52

Budapest Gambit: Adler Variation

1. d4 Nf6 2. c4 e5...

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A53

Old Indian Defense

1. d4 Nf6 2. c4 d6...

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A56

Benoni Defense

1. d4 Nf6 2. c4 c5...

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A57

Benko Gambit

1. d4 Nf6 2. c4 c5...

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A60

Benoni Defense: Modern Variation

1. d4 Nf6 2. c4 c5...

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A70

Benoni Defense: Classical Variation

1. d4 Nf6 2. c4 c5...

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A80

Dutch Defense

1. d4 f5...

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A80

Dutch Defense: Krejcik Gambit

1. d4 f5 2. g4 fxg4...

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A81

Dutch Defense: Fianchetto Variation

1. d4 f5 2. g3...

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A83

Dutch Defense: Staunton Gambit

1. d4 f5 2. e4...

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A85

Dutch Defense: Queen's Knight Variation

1. d4 f5 2. c4 Nf6...

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A87

Dutch Defense: Leningrad Variation

1. d4 f5 2. c4 Nf6...

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A90

Dutch Defense: Classical Variation

1. d4 f5 2. c4 Nf6...

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B00

Uncommon King's Pawn Opening

1. e4...

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B01

Scandinavian Defense

1. e4 d5...

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B02

Alekhine's Defense

1. e4 Nf6...

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B03

Alekhine's Defense: Four Pawns Attack

1. e4 Nf6 2. e5 Nd5...

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B06

Modern Defense

1. e4 g6...

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B07

Pirc Defense

1. e4 d6 2. d4 Nf6...

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B08

Pirc Defense: Classical Variation

1. e4 d6 2. d4 Nf6...

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B09

Pirc Defense: Austrian Attack

1. e4 d6 2. d4 Nf6...

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B10

Caro-Kann Defense

1. e4 c6...

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B12

Caro-Kann Defense: Advance Variation

1. e4 c6 2. d4 d5...

Complete List of Chess Openings