Chess Openings — ECO Lexicon
Statistics from 4,085,525 games by 8196 players
Most played
Highest win rate
Browse by group
- AFlank Openings
- BSemi-Open Game
- COpen Game
- DClosed and Semi-Closed Game
- EIndian Defenses
Search by name or ECO code…
A00
Anderssen's Opening
234,541
A01
Nimzo-Larsen Attack
71,268
A02
Bird Opening
16,716
A03
Bird Opening
12,146
A04
Zukertort Opening
81,061
A05
Zukertort Opening
13,752
A06
Zukertort Opening
20,679
A07
King's Indian Attack
28,692
A08
King's Indian Attack
5,786
A09
Réti Opening
3,774
A10
English Opening
20,099
A11
English Opening
6,842
A12
Réti Opening
398
A13
English Opening
13,017
A14
English Opening
953
A15
English Opening
9,121
A16
English Opening
5,770
A17
English Opening
2,116
A18
English Opening
1,282
A19
English Opening
185
A20
English Opening
12,094
A21
English Opening
5,299
A22
English Opening
5,161
A23
English Opening
603
A24
English Opening
950
A25
English Opening
4,276
A26
English Opening
477
A27
English Opening
863
A28
English Opening
3,440
A29
English Opening
878
A30
English Opening
7,319
A31
English Opening
1,729
A32
English Opening
61
A33
English Opening
328
A34
English Opening
3,921
A35
English Opening
2,211
A36
English Opening
1,955
A37
English Opening
842
A38
English Opening
506
A39
English Opening
367
A40
Queen's Pawn Game
197,663
A41
Queen's Pawn Game
24,393
A42
Modern Defense
1,408
A43
Benoni Defense
29,400
A44
Benoni Defense
1,797
A45
Indian Defense
66,983
A46
Indian Defense
28,987
A47
Pseudo Queen's Indian Defense
1,734
A48
East Indian Defense
24,401
A49
Indian Defense
4,760
A50
Indian Defense
4,485
A51
Indian Defense
1,464
A52
Indian Defense
1,425
A53
Old Indian Defense
3,382
A54
Old Indian Defense
1,259
A55
Old Indian Defense
447
A56
Benoni Defense
2,488
A57
Benko Gambit
2,115
A58
Benko Gambit Accepted
912
A59
Benko Gambit Accepted
241
A60
Benoni Defense
2,001
A61
Benoni Defense
417
A62
Benoni Defense
A63
Benoni Defense
6
A64
Benoni Defense
38
A65
Benoni Defense
1,223
A66
Benoni Defense
76
A67
Benoni Defense
218
A68
Benoni Defense
135
A69
Benoni Defense
32
A70
Benoni Defense
943
A71
Benoni Defense
75
A72
Benoni Defense
7
A73
Benoni Defense
65
A74
Benoni Defense
8
A75
Benoni Defense
83
A76
Benoni Defense
40
A77
Benoni Defense
253
A78
Benoni Defense
A79
Benoni Defense
A80
Dutch Defense
12,971
A81
Dutch Defense
354
A82
Dutch Defense
778
A83
Dutch Defense
390
A84
Dutch Defense
4,131
A85
Dutch Defense
1,537
A86
Dutch Defense
191
A87
Dutch Defense
198
A88
Dutch Defense
65
A89
Dutch Defense
17
A90
Dutch Defense
234
A91
Dutch Defense
154
A92
Dutch Defense
35
A93
Dutch Defense
14
A94
Dutch Defense
3
A95
Dutch Defense
26
A96
Dutch Defense
184
A97
Dutch Defense
14
A98
Dutch Defense
6
A99
Dutch Defense
6
B00
King's Pawn Game
126,574
B01
Scandinavian Defense
241,762
B02
Alekhine Defense
47,543
B03
Alekhine Defense
6,859
B04
Alekhine Defense
2,344
B05
Alekhine Defense
599
B06
Modern Defense
70,429
B07
King's Pawn Game
97,472
B08
Pirc Defense
20,166
B09
Pirc Defense
2,990
B10
Caro-Kann Defense
119,792
B11
Caro-Kann Defense
4,002
B12
Caro-Kann Defense
67,402
B13
Caro-Kann Defense
60,102
B14
Caro-Kann Defense
3,650
B15
Caro-Kann Defense
33,609
B16
Caro-Kann Defense
483
B17
Caro-Kann Defense
1,645
B18
Caro-Kann Defense
8,786
B19
Caro-Kann Defense
1,053
B20
Sicilian Defense
46,590
B21
Sicilian Defense
34,143
B22
Sicilian Defense
45,942
B23
Sicilian Defense
39,186
B24
Sicilian Defense
2,375
B25
Sicilian Defense
671
B26
Sicilian Defense
693
B27
Sicilian Defense
13,087
B28
Sicilian Defense
5,447
B29
Sicilian Defense
2,420
B30
Sicilian Defense
32,619
B31
Sicilian Defense
4,070
B32
Sicilian Defense
5,762
B33
Sicilian Defense
11,603
B34
Sicilian Defense
10,423
B35
Sicilian Defense
1,616
B36
Sicilian Defense
2,089
B37
Sicilian Defense
165
B38
Sicilian Defense
1,830
B39
Sicilian Defense
109
B40
Sicilian Defense
22,919
B41
Sicilian Defense
1,700
B42
Sicilian Defense
992
B43
Sicilian Defense
3,402
B44
Sicilian Defense
2,566
B45
Sicilian Defense
6,904
B46
Sicilian Defense
1,060
B47
Sicilian Defense
1,393
B48
Sicilian Defense
1,431
B49
Sicilian Defense
455
B50
Sicilian Defense
21,504
B51
Sicilian Defense
4,009
B52
Sicilian Defense
2,303
B53
Sicilian Defense
2,574
B54
Sicilian Defense
2,667
B55
Sicilian Defense
16
B56
Sicilian Defense
2,857
B57
Sicilian Defense
439
B58
Sicilian Defense
123
B59
Sicilian Defense
42
B60
Sicilian Defense
413
B61
Sicilian Defense
200
B62
Sicilian Defense
243
B63
Sicilian Defense
89
B64
Sicilian Defense
5
B65
Sicilian Defense
24
B66
Sicilian Defense
87
B67
Sicilian Defense
362
B68
Sicilian Defense
64
B69
Sicilian Defense
63
B70
Sicilian Defense
2,028
B71
Sicilian Defense
252
B72
Sicilian Defense
1,179
B73
Sicilian Defense
459
B74
Sicilian Defense
66
B75
Sicilian Defense
576
B76
Sicilian Defense
1,644
B77
Sicilian Defense
605
B78
Sicilian Defense
391
B79
Sicilian Defense
8
B80
Sicilian Defense
1,085
B81
Sicilian Defense
35
B82
Sicilian Defense
111
B83
Sicilian Defense
79
B84
Sicilian Defense
282
B85
Sicilian Defense
56
B86
Sicilian Defense
1,403
B87
Sicilian Defense
84
B88
Sicilian Defense
304
B89
Sicilian Defense
53
B90
Sicilian Defense
5,530
B91
Sicilian Defense
183
B92
Sicilian Defense
916
B93
Sicilian Defense
251
B94
Sicilian Defense
716
B95
Sicilian Defense
612
B96
Sicilian Defense
348
B97
Sicilian Defense
130
B98
Sicilian Defense
298
B99
Sicilian Defense
261
C00
French Defense
109,035
C01
French Defense
35,679
C02
French Defense
27,439
C03
French Defense
1,177
C04
French Defense
268
C05
French Defense
2,013
C06
French Defense
284
C07
French Defense
1,839
C08
French Defense
332
C09
French Defense
139
C10
French Defense
16,911
C11
French Defense
9,089
C12
French Defense
583
C13
French Defense
636
C14
French Defense
495
C15
French Defense
2,344
C16
French Defense
425
C17
French Defense
520
C18
French Defense
709
C19
French Defense
322
C20
King's Pawn Game
116,694
C21
Center Game Accepted
26,526
C22
Center Game
14,347
C23
Bishop's Opening
31,091
C24
Bishop's Opening
14,464
C25
Vienna Game
52,675
C26
Vienna Game
9,271
C27
Vienna Game
605
C28
Vienna Game
23,260
C29
Vienna Game
2,646
C30
King's Gambit
14,660
C31
King's Gambit Declined
1,848
C32
King's Gambit Declined
188
C33
King's Gambit Accepted
1,832
C34
King's Gambit Accepted
7,319
C35
King's Gambit Accepted
467
C36
King's Gambit Accepted
1,694
C37
King's Gambit Accepted
1,088
C38
King's Gambit Accepted
230
C39
King's Gambit Accepted
404
C40
King's Knight Opening
63,767
C41
Philidor Defense
62,275
C42
Petrov's Defense
44,942
C43
Petrov's Defense
6,846
C44
King's Knight Opening
28,681
C45
Scotch Game
82,667
C46
Three Knights Opening
26,671
C47
Four Knights Game
48,880
C48
Four Knights Game
11,508
C49
Four Knights Game
2,262
C50
Italian Game
100,661
C51
Italian Game
2,249
C52
Italian Game
718
C53
Italian Game
11,647
C54
Italian Game
4,212
C55
Italian Game
27,041
C56
Italian Game
991
C57
Italian Game
20,262
C58
Italian Game
3,906
C59
Italian Game
229
C60
Ruy Lopez
8,367
C61
Ruy Lopez
3,156
C62
Ruy Lopez
8,973
C63
Ruy Lopez
2,705
C64
Ruy Lopez
5,883
C65
Ruy Lopez
11,278
C66
Ruy Lopez
1,419
C67
Ruy Lopez
2,239
C68
Ruy Lopez
4,588
C69
Ruy Lopez
549
C70
Ruy Lopez
2,670
C71
Ruy Lopez
411
C72
Ruy Lopez
416
C73
Ruy Lopez
24
C74
Ruy Lopez
185
C75
Ruy Lopez
453
C76
Ruy Lopez
206
C77
Ruy Lopez
2,821
C78
Ruy Lopez
3,255
C79
Ruy Lopez
295
C80
Ruy Lopez
435
C81
Ruy Lopez
12
C82
Ruy Lopez
31
C83
Ruy Lopez
55
C84
Ruy Lopez
667
C85
Ruy Lopez
158
C86
Ruy Lopez
27
C87
Ruy Lopez
247
C88
Ruy Lopez
1,020
C89
Ruy Lopez
434
C90
Ruy Lopez
184
C91
Ruy Lopez
153
C92
Ruy Lopez
192
C93
Ruy Lopez
93
C94
Ruy Lopez
88
C95
Ruy Lopez
70
C96
Ruy Lopez
73
C97
Ruy Lopez
111
C98
Ruy Lopez
3
C99
Ruy Lopez
10
D00
Queen's Pawn Game
185,998
D01
Rapport-Jobava System, with e6
1,589
D02
Queen's Pawn Game
132,146
D03
Queen's Pawn Game
4,833
D04
Queen's Pawn Game
10,696
D05
Queen's Pawn Game
6,925
D06
Queen's Gambit
19,437
D07
Queen's Gambit Declined
14,487
D08
Queen's Gambit Declined
4,767
D09
Queen's Gambit Declined
179
D10
Slav Defense
20,131
D11
Slav Defense
11,679
D12
Slav Defense
2,667
D13
Slav Defense
3,975
D14
Slav Defense
763
D15
Slav Defense
6,560
D16
Slav Defense
234
D17
Slav Defense
348
D18
Slav Defense
86
D19
Slav Defense
156
D20
Queen's Gambit Accepted
28,067
D21
Queen's Gambit Accepted
2,534
D22
Queen's Gambit Accepted
160
D23
Queen's Gambit Accepted
652
D24
Queen's Gambit Accepted
798
D25
Queen's Gambit Accepted
1,274
D26
Queen's Gambit Accepted
1,768
D27
Queen's Gambit Accepted
452
D28
Queen's Gambit Accepted
40
D29
Queen's Gambit Accepted
25
D30
Queen's Gambit Declined
14,213
D31
Queen's Gambit Declined
14,531
D32
Tarrasch Defense
3,116
D33
Tarrasch Defense
300
D34
Tarrasch Defense
546
D35
Queen's Gambit Declined
11,753
D36
Queen's Gambit Declined
1,008
D37
Queen's Gambit Declined
5,687
D38
Queen's Gambit Declined
5,373
D39
Queen's Gambit Declined
86
D40
Queen's Gambit Declined
1,876
D41
Queen's Gambit Declined
392
D42
Queen's Gambit Declined
155
D43
Semi-Slav Defense
4,102
D44
Semi-Slav Defense Accepted
2,924
D45
Semi-Slav Defense
1,974
D46
Semi-Slav Defense
436
D47
Semi-Slav Defense
13
D48
Semi-Slav Defense
13
D49
Semi-Slav Defense
D50
Queen's Gambit Declined
1,520
D51
Queen's Gambit Declined
394
D52
Queen's Gambit Declined
1,409
D53
Queen's Gambit Declined
3,711
D54
Queen's Gambit Declined
5
D55
Queen's Gambit Declined
1,396
D56
Queen's Gambit Declined
27
D57
Queen's Gambit Declined
60
D58
Queen's Gambit Declined
262
D59
Queen's Gambit Declined
45
D60
Queen's Gambit Declined
628
D61
Queen's Gambit Declined
224
D62
Queen's Gambit Declined
11
D63
Queen's Gambit Declined
164
D64
Queen's Gambit Declined
41
D65
Queen's Gambit Declined
D66
Queen's Gambit Declined
97
D67
Queen's Gambit Declined
17
D68
Queen's Gambit Declined
1
D69
Queen's Gambit Declined
D70
Neo-Grünfeld Defense
331
D71
Neo-Grünfeld Defense
2
D72
Neo-Grünfeld Defense
159
D73
Neo-Grünfeld Defense
272
D74
Neo-Grünfeld Defense
6
D75
Neo-Grünfeld Defense
33
D76
Neo-Grünfeld Defense
14
D77
Neo-Grünfeld Defense
9
D78
Neo-Grünfeld Defense
1,218
D79
Neo-Grünfeld Defense
723
D80
Grünfeld Defense
838
D81
Grünfeld Defense
15
D82
Grünfeld Defense
584
D83
Grünfeld Defense
58
D84
Grünfeld Defense
5
D85
Grünfeld Defense
2,070
D86
Grünfeld Defense
211
D87
Grünfeld Defense
241
D88
Grünfeld Defense
41
D89
Grünfeld Defense
8
D90
Grünfeld Defense
418
D91
Grünfeld Defense
1,001
D92
Grünfeld Defense
194
D93
Grünfeld Defense
291
D94
Grünfeld Defense
1,913
D95
Grünfeld Defense
25
D96
Grünfeld Defense
145
D97
Grünfeld Defense
116
D98
Grünfeld Defense
4
D99
Grünfeld Defense
2
E00
Catalan Opening
5,671
E01
Catalan Opening
1,560
E02
Catalan Opening
70
E03
Catalan Opening
2
E04
Catalan Opening
1,338
E05
Catalan Opening
817
E06
Catalan Opening
1,811
E07
Catalan Opening
691
E08
Catalan Opening
203
E09
Catalan Opening
276
E10
Indian Defense
1,009
E11
Bogo-Indian Defense
2,111
E12
Queen's Indian Defense
1,907
E13
Queen's Indian Defense
98
E14
Queen's Indian Defense
1,045
E15
Queen's Indian Defense
1,079
E16
Queen's Indian Defense
558
E17
Queen's Indian Defense
717
E18
Queen's Indian Defense
911
E19
Queen's Indian Defense
125
E20
Nimzo-Indian Defense
2,823
E21
Nimzo-Indian Defense
2,182
E22
Nimzo-Indian Defense
194
E23
Nimzo-Indian Defense
11
E24
Nimzo-Indian Defense
357
E25
Nimzo-Indian Defense
21
E26
Nimzo-Indian Defense
66
E27
Nimzo-Indian Defense
102
E28
Nimzo-Indian Defense
60
E29
Nimzo-Indian Defense
30
E30
Nimzo-Indian Defense
759
E31
Nimzo-Indian Defense
11
E32
Nimzo-Indian Defense
1,288
E33
Nimzo-Indian Defense
163
E34
Nimzo-Indian Defense
538
E35
Nimzo-Indian Defense
E36
Nimzo-Indian Defense
160
E37
Nimzo-Indian Defense
10
E38
Nimzo-Indian Defense
225
E39
Nimzo-Indian Defense
82
E40
Nimzo-Indian Defense
660
E41
Nimzo-Indian Defense
120
E42
Nimzo-Indian Defense
64
E43
Nimzo-Indian Defense
545
E44
Nimzo-Indian Defense
129
E45
Nimzo-Indian Defense
46
E46
Nimzo-Indian Defense
566
E47
Nimzo-Indian Defense
156
E48
Nimzo-Indian Defense
311
E49
Nimzo-Indian Defense
180
E50
Nimzo-Indian Defense
93
E51
Nimzo-Indian Defense
333
E52
Nimzo-Indian Defense
76
E53
Nimzo-Indian Defense
66
E54
Nimzo-Indian Defense
65
E55
Nimzo-Indian Defense
7
E56
Nimzo-Indian Defense
96
E57
Nimzo-Indian Defense
24
E58
Nimzo-Indian Defense
10
E59
Nimzo-Indian Defense
E60
Indian Defense
5,069
E61
King's Indian Defense
11,002
E62
King's Indian Defense
1,906
E63
King's Indian Defense
361
E64
King's Indian Defense
1,472
E65
King's Indian Defense
334
E66
King's Indian Defense
135
E67
King's Indian Defense
990
E68
King's Indian Defense
961
E69
King's Indian Defense
124
E70
King's Indian Defense
3,165
E71
King's Indian Defense
900
E72
King's Indian Defense
151
E73
King's Indian Defense
1,472
E74
King's Indian Defense
70
E75
King's Indian Defense
64
E76
King's Indian Defense
1,584
E77
King's Indian Defense
115
E78
King's Indian Defense
9
E79
King's Indian Defense
E80
King's Indian Defense
208
E81
King's Indian Defense
1,338
E82
King's Indian Defense
64
E83
King's Indian Defense
161
E84
King's Indian Defense
17
E85
King's Indian Defense
195
E86
King's Indian Defense
32
E87
King's Indian Defense
141
E88
King's Indian Defense
E89
King's Indian Defense
7
E90
King's Indian Defense
6,928
E91
King's Indian Defense
2,380
E92
King's Indian Defense
871
E93
King's Indian Defense
53
E94
King's Indian Defense
1,843
E95
King's Indian Defense
58
E96
King's Indian Defense
12
E97
King's Indian Defense
648
E98
King's Indian Defense
91
E99
King's Indian Defense
61