15 Popular Openings - 91% of 2,998,234 games*

 

Combinations with at least 50,000 games

King Pawn(KP) 1.e4 - 1,396,466 games (47%)

Queen Pawn(QP) 1.d4 - 1,042,016 games (35%)

Reti 1.Nf3 291,658 games (10%)

All other openings 268,094 games (9%)

 

1) 1.e4 c5 Sicilian 642,294 games (21%)

Sic. 1.e4 c5 2.Nf3 d6 199,247 games (7%)

Najdorf MCO-14 262-32

1.e4 c5 2.Nf3 d6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 a6

6.Be3 e5 7.Nb3 Be6 8.f3 Be7 9.Qd2 Nbd7 10.g4 h6

11.O-O-O b5 12.h4 Nb6 13.Qf2 Rb8

 

2) Sic. Accel. Dragon 1.e4 c5 2.Nf3 Nc6 - 144,258 games (5%)

1.e4 c5 2.Nf3 Nc6 3.d4 cxd4 4.Nxd4 g6 5.Nc3 Bg7

6.Be3 Nf6 7.Bc4 Qa5 8.O-O O-O 9.Bb3 d6 10.h3 Bd7

11.f4 Qh5 12.Nf3 b5 13.a3 a5 14.Qd3 b4

 

3) Sic. Scheveningen MCO-14 289-1

1.e4 c5 2.Nf3 e6 - 131,171 games (4%)

1.e4 c5 2.Nf3 e6 3.d4 cxd4 4.Nxd4 Nf6 5.Nc3 d6

6.Be2 Be7 7.O-O Nc6 8.Be3 O-O 9.f4 a6 10.

 

4) Open Game 1.e4 e5 261,426 9%

Ruy Lopez - 120,034 games (4%)

Chigorin var. MCO-14 83-13

1.e4 e5 2.Nf3 Nc6 3.Bb5 a6 4 Ba4 Nf6 5 O-O Be7

6 Re1 b5 7 Bb3 d6 8 c3 O-O 9.h3 Na5 10.Bc2 c5

11.d4 Qc7

 

5) Giuoco Piano - 14,335 games (0%)

1.e4 e5 2.Nf3 Nc6 3.Bc4 Bb4

 

5a) Evans Gambit 1 e4 e5 2 Nf3 Nc6 3 Bc4 Bc5 4 Bb4

1 e4 e5 2 Nf3 Nc6 3 Bb5 - 1,700 games

 

6) French 1.e4 e6 French 185,345 games (6%)

MCO-14 200-2

1.e4 e6 2.d4 d5 3.e5 c5 4.c3 Nc6 5.Nf3 Qb6

6.a3 c4 7.Nbd2 Na5 8.Be2 Bd7 9.O-O O-O-O 10.Rb1 Qc7

11.Re1 Bc6 12.Nf1 h6

 

4) Caro-Kann 1.e4 c6 2.d4 d5 - 104,036 games (3%)

1.e4 c6 2.d4 d5 3.Nc3 dxe4 4.Nxe4 Bf5 5.Ng3 Bg6

6.h4 h6 7.Nf3 Nd7 8.h5 Bh7 9.Bd3 Bxd3 10.Qxd3 e6

7) Pirc 1.e4 d6 - 63,676 games (2%)

MCO-14 362-1

1.e4 d6 2.d4 Nf6 3.Nc3 g6 4.f4 Bg7 5.Nf3 O-O

6.Bd3 Nc6 7.O-O Bg4 8.e5 dxe5 9.dxe5 Nd5 10.h3 Nxc3

 

8) QP Indian 1.d4 Nf6 604,568 games (20%)

Benoni 1.d4 Nf6 2.c4 c5 52,930 games (2%)

MCO-14 637-1

1.d4 Nf6 2.c4 c5 3.d3 e6 4.Nc3 exd5 5.cxd5 d6

6.Nf3 g6 7.e4 Bg7 8.Be2 O-O 9.O-O a6 10.a4 Bg4

 

9) King's Indian Defense (KID) 1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 88,794 (3%)

MCO-14 585-1

1.d4 Nf6 2.c4 g6 3.Nc3 Bg7 4.e4 d6 5.Nf3 O-O

6.Be2 e5 7.O-O Nc6 8.d5 Ne7 9.Ne1 Nd7 10.Nd3 f5

 

10) Queen's Indian Defense (QID)1.d4 Nf6 2.c4 e6 3.Nf3 80,387 (3%)

MCO-14 570-32

1.d4 Nf6 2.c4 e6 3.Nf3 b6 4.g3 Ba6 5.b3 Bb4

6.Bd2 Be7 7.Bg2 c6 8.Bc3 d5 9.Ne5 Nfd7 10.Nxd7 Nxd7

 

11) Nimzo-Indian Defense 1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 71,883 (2%)

Rubenstein var. MCO-14 532-19

1.d4 Nf6 2.c4 e6 3.Nc3 Bb4 4,e3 O-O 5.Bd3 d5

6.Nf3 c5 7.O-O 8.a3 Bxc3 9.bxc3 dxc4 10.Bxc4 Qc7

 

12) 1 d4 d5 Queen's Pawn - 262,753 games (9%)

1.d4 d5 2.c4 c6 Slav 87,793 games (3%)

Semi-Slav Defense MCO-14 468-33

1.d4 d5 2.c4 c6 3.Nf3 Nf6 4.Nc3 e6 5.e3 Nbd7

6.Qc2 Bd6 7.Bd3 O-O 8.O-O dxc4 9.Bxc4 b5 10.Bd3 Bb7

 

13) Queen's Gambit Declined (QGD) 1.d4 d5 2.c4 e6 - 67,175 games (2%)

Orthodox Defense 1.d4 d5 2.Nf3 Nf6 - 54,740 games (2%)

Exchange Var. MCO-14 411-50

1.d4 d5 2.Nf3 Nf6 3.Nc3 Nf6 4.cxd5 5.Bg5 c6

6.Qc2 Be7 7.e3 Nbd7 8.Bd3 O-O 9.Nf3 Re8 10.O-O Nf8

 

14) Nf3 Reti - 291,658 games (10%)

Nf3 Nf6 Reti 136,791 games (5%)

1.Nf3 Nf6 2.d4 g6 - 69,934 games (2%)

1.Nf3 Nf6 2.d4 g6 3.c4 Bg7 4.Nc3 O-O 5.e4 d6

6.Be2 e5 7.O-O Nc6 8.d5 Ne7 9.Ne1 Nd7 10.Be3 f5

 

15) Nf3 d5 Reti 73,969 games (2%)

1.Nf3 d5 Reti

1.Nf3 d5 2.g3 Nf6 3.Bg2 c6 4.O-O Bg4 5.d3 Nbd7

6.Nbd2 e5 7.e4 dxe4 8.dxe4 Bc5 9.h3 Bh5 10.Qe1 O-O

 

* Ref. Apple App 'Chess Openings Pro'

 

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