Chess Openings Lab

All chess openings

68 opening families and 886 named variations, grouped by the first moves. Each page plays the line on a board and explains the plans for both sides.

1.e4 e5

Italian Game1.e4 e5 2.Nf3 Nc6 3.Bc4 · 206,003 gamesKing's Pawn Game (1.e4 sidelines)1.e4 · 148,998 gamesPhilidor Defense1.e4 e5 2.Nf3 d6 · 103,623 gamesScotch Game1.e4 e5 2.Nf3 Nc6 3.d4 · 92,540 gamesRuy Lopez1.e4 e5 2.Nf3 Nc6 3.Bb5 · 87,265 gamesBishop's Opening1.e4 e5 2.Bc4 · 87,201 gamesPetrov's Defense1.e4 e5 2.Nf3 Nf6 · 59,737 gamesFour Knights Game1.e4 e5 2.Nf3 Nc6 3.Nc3 Nf6 · 58,525 gamesVienna Game1.e4 e5 2.Nc3 · 52,886 gamesTwo Knights Defense1.e4 e5 2.Nf3 Nc6 3.Bc4 Nf6 · 46,090 gamesCenter Game1.e4 e5 2.d4 · 32,030 gamesThree Knights Opening1.e4 e5 2.Nf3 Nc6 3.Nc3 · 27,459 gamesPonziani Opening1.e4 e5 2.Nf3 Nc6 3.c3 · 19,193 gamesElephant Gambit1.e4 e5 2.Nf3 d5 · 14,618 gamesKing's Gambit1.e4 e5 2.f4 · 8,536 gamesEvans Gambit1.e4 e5 2.Nf3 Nc6 3.Bc4 Bc5 4.b4 · 3,283 gamesDanish Gambit1.e4 e5 2.d4 exd4 3.c3 · 2,873 gamesLatvian Gambit1.e4 e5 2.Nf3 f5 · 2,735 games

1.e4 other replies

Sicilian Defense1.e4 c5 · 391,169 gamesFrench Defense1.e4 e6 · 253,335 gamesCaro-Kann Defense1.e4 c6 · 210,170 gamesScandinavian Defense1.e4 d5 · 202,144 gamesModern Defense1.e4 g6 · 75,350 gamesPirc Defense1.e4 d6 · 75,086 gamesNimzowitsch Defense1.e4 Nc6 · 46,847 gamesOwen Defense1.e4 b6 · 44,683 gamesAlekhine Defense1.e4 Nf6 · 31,444 gamesRat Defense1.e4 d6 2.f4 · 3,921 gamesHippopotamus Defense1.e4 Nh6 · 280 games

1.d4 d5

Queen's Gambit Declined1.d4 d5 2.c4 e6 · 105,431 gamesSlav Defense1.d4 d5 2.c4 c6 · 39,865 gamesQueen's Gambit Accepted1.d4 d5 2.c4 dxc4 · 36,618 gamesLondon System1.d4 d5 2.Nf3 Nf6 3.Bf4 · 27,936 gamesColle System1.d4 d5 2.Nf3 Nf6 3.e3 · 18,099 gamesJobava London1.d4 d5 2.Nc3 Nf6 3.Bf4 · 17,776 gamesSemi-Slav Defense1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.Nc3 e6 · 15,440 gamesBlackmar-Diemer Gambit1.d4 d5 2.e4 · 10,432 gamesAlbin Countergambit1.d4 d5 2.c4 e5 · 5,769 gamesTarrasch Defense1.d4 d5 2.c4 e6 3.Nc3 c5 · 3,515 gamesTorre Attack1.d4 d5 2.Nf3 Nf6 3.Bg5 · 3,406 gamesQueen's Gambit1.d4 d5 2.c4 · 2,040 games

1.d4 Nf6

Indian Defense (1.d4 Nf6 sidelines)1.d4 Nf6 · 71,692 gamesBenoni Defense1.d4 Nf6 2.c4 c5 · 37,675 gamesKing's Indian Defense1.d4 Nf6 2.c4 g6 3.Nc3 · 29,811 gamesNimzo-Indian Defense1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 · 10,466 gamesTrompowsky Attack1.d4 Nf6 2.Bg5 · 6,637 gamesGrünfeld Defense1.d4 Nf6 2.c4 g6 3.Nc3 d5 · 6,634 gamesCatalan Opening1.d4 Nf6 2.c4 e6 3.g3 · 3,838 gamesQueen's Indian Defense1.d4 Nf6 2.c4 e6 3.Nf3 b6 · 2,822 gamesBenko Gambit1.d4 Nf6 2.c4 c5 3.d5 b5 · 1,600 gamesBogo-Indian Defense1.d4 Nf6 2.c4 e6 3.Nf3 Bb4+ · 1,459 gamesBudapest Gambit1.d4 Nf6 2.c4 e5 · 0 games

1.d4 other replies

Queen's Pawn Game (1.d4 sidelines)1.d4 · 362,182 gamesEnglund Gambit1.d4 e5 · 48,132 gamesHorwitz Defense (1.d4 e6)1.d4 e6 · 46,728 gamesDutch Defense1.d4 f5 · 21,725 gamesEnglish Defense1.d4 b6 · 19,128 gamesOld Indian Defense1.d4 d6 2.c4 · 9,963 games

1.c4

English Opening1.c4 · 116,649 games

1.Nf3

Zukertort Opening (1.Nf3)1.Nf3 · 77,116 gamesKing's Indian Attack1.Nf3 d5 2.g3 · 13,615 gamesRéti Opening1.Nf3 d5 2.c4 · 4,373 games

Other first moves

Van't Kruijs Opening (1.e3)1.e3 · 54,618 gamesHungarian Opening (1.g3)1.g3 · 43,706 gamesNimzo-Larsen Attack1.b3 · 41,380 gamesBird's Opening1.f4 · 32,094 gamesPolish Opening1.b4 · 16,212 gamesGrob Opening1.g4 · 12,113 games

Every variation, by family

Albin Countergambit (1 variations)
Alekhine Defense (15 variations)
Benko Gambit (5 variations)
Benoni Defense (10 variations)
Bird's Opening (7 variations)
Bishop's Opening (13 variations)
Blackmar-Diemer Gambit (20 variations)
Bogo-Indian Defense (4 variations)
Caro-Kann Defense (41 variations)
Catalan Opening (3 variations)
Center Game (8 variations)
Colle System (3 variations)
Danish Gambit (6 variations)
Dutch Defense (11 variations)
Elephant Gambit (1 variations)
English Opening (41 variations)
Englund Gambit (14 variations)
Evans Gambit (2 variations)
Four Knights Game (13 variations)
French Defense (62 variations)
Grob Opening (4 variations)
Grünfeld Defense (11 variations)
Hungarian Opening (1.g3) (7 variations)
Indian Defense (1.d4 Nf6 sidelines) (14 variations)
Italian Game (29 variations)
Jobava London (1 variations)
King's Gambit (31 variations)
King's Indian Attack (8 variations)
King's Indian Defense (18 variations)
King's Pawn Game (1.e4 sidelines) (20 variations)
Latvian Gambit (2 variations)
London System (4 variations)
Modern Defense (14 variations)
Nimzo-Indian Defense (10 variations)
Nimzo-Larsen Attack (5 variations)
Nimzowitsch Defense (15 variations)
Old Indian Defense (1 variations)
Owen Defense (1 variations)
Petrov's Defense (12 variations)
Philidor Defense (11 variations)
Pirc Defense (10 variations)
Polish Opening (4 variations)
Ponziani Opening (4 variations)
Queen's Gambit Accepted (15 variations)
Queen's Gambit Declined (36 variations)
Queen's Indian Defense (6 variations)
Queen's Pawn Game (1.d4 sidelines) (18 variations)
Rat Defense (4 variations)
Réti Opening (4 variations)
Ruy Lopez (37 variations)
Scandinavian Defense (25 variations)
Scotch Game (25 variations)
Semi-Slav Defense (12 variations)
Sicilian Defense (113 variations)
Slav Defense (16 variations)
Tarrasch Defense (1 variations)
Three Knights Opening (1 variations)
Torre Attack (3 variations)
Trompowsky Attack (4 variations)
Two Knights Defense (16 variations)
Vienna Game (15 variations)
Zukertort Opening (1.Nf3) (19 variations)