ECO Encyclopedia of Chess Openings

Introduction: Understanding the Encyclopedia of Chess Openings (ECO)

In the realm of chess, the opening phase is critical, setting the stage for the middlegame and endgame. To navigate this phase effectively, players and theorists have developed extensive literature, among which the Encyclopaedia of Chess Openings (ECO) stands as a cornerstone.

The ECO is a comprehensive reference work that systematically categorises chess openings using a unique alphanumeric code system. This system divides openings into five main categories labeled A through E, each containing 100 subcategories, resulting in 500 distinct codes. For example, the Sicilian Defence is classified under codes B20–B99, while the Queen’s Gambit falls under D06–D69.

Published by the Serbian company Šahovski Informator, the ECO compiles analyses from millions of games played by masters and grandmasters, as well as contributions from leading chess analysts. The first volume was released in the 1970s, and the series has since become an essential resource for players seeking to deepen their understanding of opening theory.

The ECO’s significance lies not only in its exhaustive coverage of openings but also in its universal language. By employing a system of symbols and codes, it transcends linguistic barriers, allowing players worldwide to access and interpret its content without the need for translation.

Historical Development of the ECO

The genesis of the Encyclopedia of Chess Openings is rooted in the mid-20th century, a period marked by a surge in the systematic study of chess openings. The initiative was spearheaded by the Yugoslavian (now Serbian) publishing house Šahovski Informator, which began compiling and disseminating high-quality analyses of chess games in the 1960s.

The first volume of the ECO was published in the 1970s, building upon the foundation laid by the Chess Informant series. The editors aimed to create a comprehensive and standardised reference that would facilitate the study and classification of chess openings. By organising openings into a structured code system, the ECO provided a clear and accessible framework for players and researchers alike.

Over the years, the ECO has undergone numerous revisions and updates, reflecting the evolving landscape of chess theory. Contributions from leading grandmasters and analysts have ensured that the content remains current and authoritative. The ECO’s enduring relevance is a testament to its meticulous scholarship and its pivotal role in the advancement of chess knowledge.

Analysis of Top Four White Opening Moves by Win Rate

Understanding the efficacy of various opening moves is crucial for players aiming to optimise their performance. Statistical analyses from extensive game databases provide insights into which openings yield the highest success rates for White.

1. 1.e4 – King’s Pawn Opening

• Win Rate: Approximately 54%
• Description: This opening move is one of the most popular and aggressive choices for White. It leads to a variety of well-known openings, including the Ruy López, Italian Game, and Sicilian Defence. The move immediately controls the centre and allows for rapid development of pieces.
• Notable Practitioners: Bobby Fischer famously advocated for 1.e4, stating, “1.e4, best by test.” Magnus Carlsen has also frequently employed this opening in his games.

2. 1.d4 – Queen’s Pawn Opening

• Win Rate: Approximately 52%
• Description: This move often leads to more positional and strategic games. It opens pathways to openings such as the Queen’s Gambit and the King’s Indian Defence. The move controls the centre and prepares for solid development.
• Notable Practitioners: Garry Kasparov and José Raúl Capablanca have effectively utilised 1.d4 in their games, showcasing its potential for strategic depth.

3. 1.c4 – English Opening

• Win Rate: Approximately 53%
• Description: The English Opening is a hypermodern strategy where White focuses on controlling the centre from the flanks. It often leads to asymmetrical pawn structures and complex positions.
• Notable Practitioners: Mikhail Botvinnik and Anatoly Karpov have employed the English Opening to great effect, demonstrating its versatility and strategic richness.

4. 1.Nf3 – Reti Opening

• Win Rate: Approximately 52%
• Description: This flexible opening move allows White to transpose into various other openings, including the King’s Indian Attack and the English Opening. It supports rapid development and control of the centre without committing to a specific pawn structure.
• Notable Practitioners: Vladimir Kramnik and Hikaru Nakamura have utilised 1.Nf3 to navigate into favourable middlegame positions, showcasing its adaptability.

These statistics underscore the importance of opening choice in chess strategy. While 1.e4 and 1.d4 remain the most prevalent, the success rates of 1.c4 and 1.Nf3 highlight the viability of alternative approaches.

The Utility of the ECO for Chess Players

The Encyclopaedia of Chess Openings serves as an indispensable tool for players seeking to enhance their opening repertoire and deepen their theoretical understanding. Its systematic classification allows for efficient study and preparation, enabling players to navigate the complexities of opening theory with greater confidence.

Key Benefits of the ECO:

• Comprehensive Coverage: The ECO encompasses a vast array of openings and variations, providing detailed analyses and evaluations.
• Standardised Notation: The use of universal symbols and codes facilitates clear communication and understanding across language barriers.
• Authoritative Content: Contributions from leading grandmasters and analysts ensure the accuracy and relevance of the information.
• Strategic Insights: The ECO offers valuable perspectives on the strategic objectives and tactical motifs inherent in various openings.

By integrating the ECO into their study regimen, players can systematically explore and master the intricacies of opening play, laying a solid foundation for success in the middlegame and beyond.

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Eco statistics my games

ECO Statistics.csv

Code	Total games	White Win	White Win %	White Win Avg Moves	Black Win	Black Win %	Black Win Avg Moves	Draw	Draw %	Draw Avg Moves	Weight
C65	4872	65	1	3%	80	50	1	0%	80	4757	97	6%	67	0	0031
C50	1238	33	2	7%	74	22	1	8%	78	1183	95	6%	68	0	0089
C78	969	2	0	2%	112	0	0	0%	N/A	967	99	8%	57	0	0021
B90	851	12	1	4%	83	2	0	2%	94	837	98	4%	63	0	0118
A28	815	5	0	6%	83	7	0	9%	91	803	98	5%	66	-0	0025
C53	762	9	1	2%	71	2	0	3%	92	751	98	6%	67	0	0092
C67	751	6	0	8%	71	7	0	9%	74	738	98	3%	68	-0	0013
D43	545	2	0	4%	56	3	0	6%	63	540	99	1%	60	-0	0018
D45	543	4	0	7%	91	1	0	2%	71	538	99	1%	66	0	0055
B12	472	7	1	5%	85	0	0	0%	N/A	465	98	5%	71	0	0148
B00	441	56	12	7%	82	3	0	7%	168	382	86	6%	93	0	1202
D02	428	7	1	6%	72	2	0	5%	86	419	97	9%	64	0	0117
D38	349	0	0	0%	N/A	0	0	0%	N/A	349	100	0%	63	0	0000
A00	345	0	0	0%	N/A	6	1	7%	86	339	98	3%	62	-0	0174
B33	328	4	1	2%	62	4	1	2%	79	320	97	6%	69	0	0000
C11	326	8	2	5%	102	0	0	0%	N/A	318	97	5%	67	0	0245
C02	280	3	1	1%	82	0	0	0%	N/A	277	98	9%	68	0	0107
C89	231	2	0	9%	84	1	0	4%	94	228	98	7%	68	0	0043
B97	204	2	1	0%	66	2	1	0%	76	200	98	0%	62	0	0000
C42	191	1	0	5%	48	0	0	0%	N/A	190	99	5%	68	0	0052
D20	183	1	0	5%	110	0	0	0%	N/A	182	99	5%	72	0	0055
B92	175	3	1	7%	99	0	0	0%	N/A	172	98	3%	69	0	0171
B01	166	6	3	6%	49	0	0	0%	N/A	160	96	4%	81	0	0361
C77	149	2	1	3%	63	0	0	0%	N/A	147	98	7%	63	0	0134
E06	139	0	0	0%	N/A	0	0	0%	N/A	139	100	0%	62	0	0000
B03	137	9	6	6%	95	0	0	0%	N/A	128	93	4%	89	0	0657
A20	136	7	5	1%	62	3	2	2%	68	126	92	6%	64	0	0294
D35	131	0	0	0%	N/A	3	2	3%	74	128	97	7%	66	-0	0229
A07	128	3	2	3%	51	0	0	0%	N/A	125	97	7%	62	0	0234
D27	119	0	0	0%	N/A	0	0	0%	N/A	119	100	0%	62	0	0000
B48	112	5	4	5%	78	1	0	9%	71	106	94	6%	67	0	0357
E00	107	2	1	9%	81	1	0	9%	133	104	97	2%	64	0	0093
C52	99	2	2	0%	96	1	1	0%	68	96	97	0%	75	0	0101
D47	97	2	2	1%	51	0	0	0%	N/A	95	97	9%	70	0	0206
B30	94	0	0	0%	N/A	0	0	0%	N/A	94	100	0%	67	0	0000
E81	93	4	4	3%	71	0	0	0%	N/A	89	95	7%	62	0	0430
A40	93	14	15	1%	76	1	1	1%	115	78	83	9%	102	0	1398
A45	87	0	0	0%	N/A	1	1	1%	87	86	98	9%	63	-0	0115
A01	86	0	0	0%	N/A	0	0	0%	N/A	86	100	0%	59	0	0000
C45	85	0	0	0%	N/A	2	2	4%	72	83	97	6%	61	-0	0235
B07	85	2	2	4%	83	0	0	0%	N/A	83	97	6%	60	0	0235
E10	84	1	1	2%	100	1	1	2%	155	82	97	6%	66	0	0000
D00	84	1	1	2%	49	1	1	2%	94	82	97	6%	60	0	0000
A06	82	0	0	0%	N/A	1	1	2%	65	81	98	8%	65	-0	0122
D03	79	3	3	8%	108	0	0	0%	N/A	76	96	2%	71	0	0380
A03	76	0	0	0%	N/A	2	2	6%	59	74	97	4%	61	-0	0263
A42	75	2	2	7%	91	0	0	0%	N/A	73	97	3%	77	0	0267
D05	75	0	0	0%	N/A	3	4	0%	55	72	96	0%	64	-0	0400
C88	69	0	0	0%	N/A	1	1	4%	59	68	98	6%	70	-0	0145
A04	67	2	3	0%	64	0	0	0%	N/A	65	97	0%	78	0	0299
C92	66	6	9	1%	87	1	1	5%	34	59	89	4%	82	0	0758
C17	65	0	0	0%	N/A	0	0	0%	N/A	65	100	0%	74	0	0000
B45	63	4	6	3%	85	0	0	0%	N/A	59	93	7%	64	0	0635
A29	59	1	1	7%	54	2	3	4%	64	56	94	9%	61	-0	0169
C00	59	0	0	0%	N/A	0	0	0%	N/A	59	100	0%	74	0	0000
C94	58	1	1	7%	83	0	0	0%	N/A	57	98	3%	66	0	0172
C24	53	0	0	0%	N/A	0	0	0%	N/A	53	100	0%	64	0	0000
C20	52	0	0	0%	N/A	0	0	0%	N/A	52	100	0%	59	0	0000
B43	52	1	1	9%	44	0	0	0%	N/A	51	98	1%	74	0	0192
A22	50	0	0	0%	N/A	2	4	0%	49	48	96	0%	59	-0	0400
C10	50	3	6	0%	69	0	0	0%	N/A	47	94	0%	67	0	0600
B23	49	0	0	0%	N/A	0	0	0%	N/A	49	100	0%	61	0	0000
E04	49	0	0	0%	N/A	0	0	0%	N/A	49	100	0%	71	0	0000
E01	47	1	2	1%	67	2	4	3%	61	44	93	6%	65	-0	0213
A08	45	1	2	2%	99	0	0	0%	N/A	44	97	8%	58	0	0222
D34	44	1	2	3%	85	0	0	0%	N/A	43	97	7%	65	0	0227
D30	43	0	0	0%	N/A	1	2	3%	65	42	97	7%	63	-0	0233
D12	43	1	2	3%	108	0	0	0%	N/A	42	97	7%	70	0	0233
D79	42	0	0	0%	N/A	0	0	0%	N/A	42	100	0%	64	0	0000
A46	42	0	0	0%	N/A	1	2	4%	78	41	97	6%	65	-0	0238
C43	37	2	5	4%	107	0	0	0%	N/A	35	94	6%	67	0	0541
D31	36	0	0	0%	N/A	1	2	8%	64	35	97	2%	69	-0	0278
A49	35	0	0	0%	N/A	0	0	0%	N/A	35	100	0%	62	0	0000
A35	34	0	0	0%	N/A	0	0	0%	N/A	34	100	0%	61	0	0000
E32	32	0	0	0%	N/A	0	0	0%	N/A	32	100	0%	59	0	0000
C41	30	0	0	0%	N/A	0	0	0%	N/A	30	100	0%	75	0	0000
E60	30	3	10	0%	58	0	0	0%	N/A	27	90	0%	65	0	1000
C48	30	0	0	0%	N/A	0	0	0%	N/A	30	100	0%	57	0	0000
C46	29	0	0	0%	N/A	0	0	0%	N/A	29	100	0%	66	0	0000
D17	27	0	0	0%	N/A	0	0	0%	N/A	27	100	0%	61	0	0000
D53	27	3	11	1%	74	1	3	7%	81	23	85	2%	83	0	0741
D58	27	0	0	0%	N/A	0	0	0%	N/A	27	100	0%	54	0	0000
A84	26	1	3	8%	85	0	0	0%	N/A	25	96	2%	76	0	0385
B32	26	1	3	8%	80	0	0	0%	N/A	25	96	2%	76	0	0385
D85	25	0	0	0%	N/A	0	0	0%	N/A	25	100	0%	79	0	0000
D37	25	1	4	0%	59	0	0	0%	N/A	24	96	0%	63	0	0400
E51	25	0	0	0%	N/A	0	0	0%	N/A	25	100	0%	59	0	0000
C83	24	0	0	0%	N/A	0	0	0%	N/A	24	100	0%	67	0	0000
E97	24	0	0	0%	N/A	0	0	0%	N/A	24	100	0%	80	0	0000
C19	23	3	13	0%	64	0	0	0%	N/A	20	87	0%	67	0	1304
E92	23	2	8	7%	108	0	0	0%	N/A	21	91	3%	65	0	0870
B27	22	1	4	5%	130	0	0	0%	N/A	21	95	5%	58	0	0455
A05	22	0	0	0%	N/A	0	0	0%	N/A	22	100	0%	75	0	0000
C80	21	0	0	0%	N/A	0	0	0%	N/A	21	100	0%	65	0	0000
A09	21	1	4	8%	101	0	0	0%	N/A	20	95	2%	59	0	0476
C44	21	1	4	8%	60	1	4	8%	134	19	90	5%	65	0	0000
B40	21	2	9	5%	49	0	0	0%	N/A	19	90	5%	58	0	0952
C26	20	0	0	0%	N/A	0	0	0%	N/A	20	100	0%	71	0	0000
D04	20	1	5	0%	81	0	0	0%	N/A	19	95	0%	70	0	0500
A88	20	0	0	0%	N/A	0	0	0%	N/A	20	100	0%	67	0	0000
D36	19	3	15	8%	68	0	0	0%	N/A	16	84	2%	70	0	1579
D73	19	0	0	0%	N/A	0	0	0%	N/A	19	100	0%	64	0	0000
A10	19	0	0	0%	N/A	1	5	3%	105	18	94	7%	80	-0	0526
B15	19	0	0	0%	N/A	0	0	0%	N/A	19	100	0%	75	0	0000
E53	19	0	0	0%	N/A	0	0	0%	N/A	19	100	0%	72	0	0000
C55	18	0	0	0%	N/A	0	0	0%	N/A	18	100	0%	66	0	0000
C21	17	0	0	0%	N/A	0	0	0%	N/A	17	100	0%	61	0	0000
B10	16	1	6	3%	64	0	0	0%	N/A	15	93	8%	70	0	0625
C95	16	1	6	3%	72	0	0	0%	N/A	15	93	8%	73	0	0625
D39	15	0	0	0%	N/A	0	0	0%	N/A	15	100	0%	79	0	0000
B28	15	0	0	0%	N/A	0	0	0%	N/A	15	100	0%	83	0	0000
A15	15	0	0	0%	N/A	0	0	0%	N/A	15	100	0%	61	0	0000
E68	15	2	13	3%	93	0	0	0%	N/A	13	86	7%	77	0	1333
B84	14	1	7	1%	46	0	0	0%	N/A	13	92	9%	76	0	0714
D26	14	1	7	1%	63	0	0	0%	N/A	13	92	9%	55	0	0714
E15	14	1	7	1%	67	0	0	0%	N/A	13	92	9%	58	0	0714
B11	14	0	0	0%	N/A	0	0	0%	N/A	14	100	0%	60	0	0000
B42	14	0	0	0%	N/A	0	0	0%	N/A	14	100	0%	68	0	0000
B22	13	0	0	0%	N/A	0	0	0%	N/A	13	100	0%	56	0	0000
B54	12	1	8	3%	83	0	0	0%	N/A	11	91	7%	79	0	0833
D41	12	0	0	0%	N/A	0	0	0%	N/A	12	100	0%	70	0	0000
C22	12	0	0	0%	N/A	0	0	0%	N/A	12	100	0%	47	0	0000
C97	12	1	8	3%	73	0	0	0%	N/A	11	91	7%	72	0	0833
D01	12	0	0	0%	N/A	1	8	3%	89	11	91	7%	90	-0	0833
D78	12	0	0	0%	N/A	0	0	0%	N/A	12	100	0%	56	0	0000
D55	11	0	0	0%	N/A	0	0	0%	N/A	11	100	0%	62	0	0000
B09	11	0	0	0%	N/A	0	0	0%	N/A	11	100	0%	72	0	0000
C39	11	0	0	0%	N/A	0	0	0%	N/A	11	100	0%	73	0	0000
B52	11	0	0	0%	N/A	0	0	0%	N/A	11	100	0%	57	0	0000
A21	11	2	18	2%	115	0	0	0%	N/A	9	81	8%	68	0	1818
A13	11	0	0	0%	N/A	0	0	0%	N/A	11	100	0%	70	0	0000
B31	11	0	0	0%	N/A	1	9	1%	87	10	90	9%	74	-0	0909
E52	11	1	9	1%	66	0	0	0%	N/A	10	90	9%	60	0	0909
B66	11	0	0	0%	N/A	0	0	0%	N/A	11	100	0%	71	0	0000
B50	10	0	0	0%	N/A	0	0	0%	N/A	10	100	0%	86	0	0000
B20	10	0	0	0%	N/A	0	0	0%	N/A	10	100	0%	82	0	0000
D11	10	1	10	0%	89	0	0	0%	N/A	9	90	0%	68	0	1000
E94	9	0	0	0%	N/A	0	0	0%	N/A	9	100	0%	75	0	0000
E20	9	1	11	1%	99	0	0	0%	N/A	8	88	9%	62	0	1111
D32	9	0	0	0%	N/A	0	0	0%	N/A	9	100	0%	70	0	0000
B36	9	1	11	1%	56	0	0	0%	N/A	8	88	9%	61	0	1111
B85	9	0	0	0%	N/A	0	0	0%	N/A	9	100	0%	83	0	0000
B06	8	1	12	5%	104	0	0	0%	N/A	7	87	5%	63	0	1250
C70	8	0	0	0%	N/A	0	0	0%	N/A	8	100	0%	67	0	0000
C28	8	0	0	0%	N/A	0	0	0%	N/A	8	100	0%	56	0	0000
D15	8	0	0	0%	N/A	0	0	0%	N/A	8	100	0%	77	0	0000
C63	7	1	14	3%	74	0	0	0%	N/A	6	85	7%	60	0	1429
A14	7	0	0	0%	N/A	0	0	0%	N/A	7	100	0%	46	0	0000
B67	7	2	28	6%	87	0	0	0%	N/A	5	71	4%	59	0	2857
A36	7	0	0	0%	N/A	0	0	0%	N/A	7	100	0%	48	0	0000
C47	6	0	0	0%	N/A	0	0	0%	N/A	6	100	0%	61	0	0000
B46	6	3	50	0%	56	0	0	0%	N/A	3	50	0%	80	0	5000
B25	6	0	0	0%	N/A	1	16	7%	61	5	83	3%	61	-0	1667
C90	6	0	0	0%	N/A	0	0	0%	N/A	6	100	0%	54	0	0000
E35	6	0	0	0%	N/A	0	0	0%	N/A	6	100	0%	76	0	0000
E73	6	1	16	7%	53	0	0	0%	N/A	5	83	3%	67	0	1667
E11	6	1	16	7%	75	0	0	0%	N/A	5	83	3%	91	0	1667
E48	6	0	0	0%	N/A	0	0	0%	N/A	6	100	0%	54	0	0000
C84	6	0	0	0%	N/A	0	0	0%	N/A	6	100	0%	79	0	0000
A30	6	0	0	0%	N/A	0	0	0%	N/A	6	100	0%	64	0	0000
E25	6	0	0	0%	N/A	0	0	0%	N/A	6	100	0%	42	0	0000
C07	6	0	0	0%	N/A	0	0	0%	N/A	6	100	0%	79	0	0000
B57	5	0	0	0%	N/A	0	0	0%	N/A	5	100	0%	66	0	0000
B62	5	0	0	0%	N/A	0	0	0%	N/A	5	100	0%	79	0	0000
D49	5	0	0	0%	N/A	0	0	0%	N/A	5	100	0%	64	0	0000
D21	5	0	0	0%	N/A	0	0	0%	N/A	5	100	0%	112	0	0000
E07	5	0	0	0%	N/A	0	0	0%	N/A	5	100	0%	73	0	0000
A50	5	1	20	0%	82	0	0	0%	N/A	4	80	0%	124	0	2000
B76	5	0	0	0%	N/A	0	0	0%	N/A	5	100	0%	64	0	0000
B81	5	3	60	0%	95	0	0	0%	N/A	2	40	0%	67	0	6000
E12	5	0	0	0%	N/A	0	0	0%	N/A	5	100	0%	62	0	0000
A85	5	1	20	0%	90	0	0	0%	N/A	4	80	0%	49	0	2000
B49	5	0	0	0%	N/A	0	0	0%	N/A	5	100	0%	61	0	0000
B47	5	0	0	0%	N/A	0	0	0%	N/A	5	100	0%	98	0	0000
B96	5	0	0	0%	N/A	0	0	0%	N/A	5	100	0%	68	0	0000
A52	4	0	0	0%	N/A	0	0	0%	N/A	4	100	0%	57	0	0000
B08	4	0	0	0%	N/A	0	0	0%	N/A	4	100	0%	75	0	0000
E19	4	0	0	0%	N/A	0	0	0%	N/A	4	100	0%	89	0	0000
E90	4	1	25	0%	46	0	0	0%	N/A	3	75	0%	94	0	2500
D44	4	0	0	0%	N/A	0	0	0%	N/A	4	100	0%	64	0	0000
A32	4	0	0	0%	N/A	0	0	0%	N/A	4	100	0%	58	0	0000
A62	4	1	25	0%	80	0	0	0%	N/A	3	75	0%	61	0	2500
E21	4	0	0	0%	N/A	0	0	0%	N/A	4	100	0%	66	0	0000
B19	4	0	0	0%	N/A	0	0	0%	N/A	4	100	0%	67	0	0000
D07	3	0	0	0%	N/A	0	0	0%	N/A	3	100	0%	94	0	0000
D48	3	0	0	0%	N/A	0	0	0%	N/A	3	100	0%	90	0	0000
D88	3	0	0	0%	N/A	0	0	0%	N/A	3	100	0%	62	0	0000
D08	3	0	0	0%	N/A	0	0	0%	N/A	3	100	0%	58	0	0000
B51	3	0	0	0%	N/A	0	0	0%	N/A	3	100	0%	100	0	0000
C64	3	0	0	0%	N/A	0	0	0%	N/A	3	100	0%	56	0	0000
A37	3	0	0	0%	N/A	0	0	0%	N/A	3	100	0%	43	0	0000
E08	3	0	0	0%	N/A	0	0	0%	N/A	3	100	0%	59	0	0000
D10	3	0	0	0%	N/A	0	0	0%	N/A	3	100	0%	53	0	0000
D29	3	0	0	0%	N/A	0	0	0%	N/A	3	100	0%	60	0	0000
B89	2	0	0	0%	N/A	0	0	0%	N/A	2	100	0%	70	0	0000
B99	2	0	0	0%	N/A	0	0	0%	N/A	2	100	0%	87	0	0000
E83	2	0	0	0%	N/A	0	0	0%	N/A	2	100	0%	68	0	0000
E71	2	0	0	0%	N/A	0	0	0%	N/A	2	100	0%	42	0	0000
C82	2	1	50	0%	65	0	0	0%	N/A	1	50	0%	47	0	5000
B94	2	0	0	0%	N/A	0	0	0%	N/A	2	100	0%	62	0	0000
B21	2	0	0	0%	N/A	0	0	0%	N/A	2	100	0%	71	0	0000
B18	2	0	0	0%	N/A	0	0	0%	N/A	2	100	0%	80	0	0000
E69	2	0	0	0%	N/A	0	0	0%	N/A	2	100	0%	107	0	0000
B61	2	0	0	0%	N/A	0	0	0%	N/A	2	100	0%	54	0	0000
A33	2	0	0	0%	N/A	0	0	0%	N/A	2	100	0%	51	0	0000
C87	2	0	0	0%	N/A	0	0	0%	N/A	2	100	0%	56	0	0000
D16	2	0	0	0%	N/A	0	0	0%	N/A	2	100	0%	91	0	0000
E36	2	0	0	0%	N/A	0	0	0%	N/A	2	100	0%	102	0	0000
B53	2	0	0	0%	N/A	0	0	0%	N/A	2	100	0%	40	0	0000
B44	2	0	0	0%	N/A	0	0	0%	N/A	2	100	0%	92	0	0000
E40	2	0	0	0%	N/A	0	0	0%	N/A	2	100	0%	55	0	0000
B13	2	0	0	0%	N/A	0	0	0%	N/A	2	100	0%	46	0	0000
E54	2	0	0	0%	N/A	0	0	0%	N/A	2	100	0%	34	0	0000
D50	2	0	0	0%	N/A	0	0	0%	N/A	2	100	0%	67	0	0000
A92	2	1	50	0%	130	0	0	0%	N/A	1	50	0%	73	0	5000
C60	2	0	0	0%	N/A	0	0	0%	N/A	2	100	0%	59	0	0000
B69	2	0	0	0%	N/A	0	0	0%	N/A	2	100	0%	57	0	0000
C08	2	0	0	0%	N/A	0	0	0%	N/A	2	100	0%	142	0	0000
E47	2	0	0	0%	N/A	0	0	0%	N/A	2	100	0%	89	0	0000
C29	2	0	0	0%	N/A	0	0	0%	N/A	2	100	0%	33	0	0000
E62	2	0	0	0%	N/A	0	0	0%	N/A	2	100	0%	121	0	0000
C75	1	0	0	0%	N/A	0	0	0%	N/A	1	100	0%	77	0	0000
B63	1	0	0	0%	N/A	0	0	0%	N/A	1	100	0%	57	0	0000
A12	1	0	0	0%	N/A	0	0	0%	N/A	1	100	0%	63	0	0000
D06	1	0	0	0%	N/A	0	0	0%	N/A	1	100	0%	62	0	0000
E87	1	0	0	0%	N/A	0	0	0%	N/A	1	100	0%	64	0	0000
A48	1	0	0	0%	N/A	0	0	0%	N/A	1	100	0%	34	0	0000
A34	1	0	0	0%	N/A	0	0	0%	N/A	1	100	0%	61	0	0000
B02	1	1	100	0%	79	0	0	0%	N/A	0	0	0%	N/A	1	0000
D90	1	0	0	0%	N/A	0	0	0%	N/A	1	100	0%	69	0	0000
A17	1	0	0	0%	N/A	0	0	0%	N/A	1	100	0%	64	0	0000
B82	1	1	100	0%	59	0	0	0%	N/A	0	0	0%	N/A	1	0000
C72	1	1	100	0%	121	0	0	0%	N/A	0	0	0%	N/A	1	0000
C93	1	0	0	0%	N/A	0	0	0%	N/A	1	100	0%	84	0	0000
B41	1	0	0	0%	N/A	0	0	0%	N/A	1	100	0%	49	0	0000
D25	1	1	100	0%	72	0	0	0%	N/A	0	0	0%	N/A	1	0000
C58	1	0	0	0%	N/A	0	0	0%	N/A	1	100	0%	39	0	0000
D59	1	0	0	0%	N/A	0	0	0%	N/A	1	100	0%	106	0	0000
A02	1	0	0	0%	N/A	0	0	0%	N/A	1	100	0%	99	0	0000
D56	1	0	0	0%	N/A	0	0	0%	N/A	1	100	0%	46	0	0000
C09	1	0	0	0%	N/A	0	0	0%	N/A	1	100	0%	44	0	0000
D22	1	0	0	0%	N/A	0	0	0%	N/A	1	100	0%	92	0	0000
E17	1	0	0	0%	N/A	0	0	0%	N/A	1	100	0%	129	0	0000
E66	1	0	0	0%	N/A	0	0	0%	N/A	1	100	0%	78	0	0000
E14	1	0	0	0%	N/A	0	0	0%	N/A	1	100	0%	77	0	0000
A41	1	0	0	0%	N/A	0	0	0%	N/A	1	100	0%	31	0	0000
D86	1	1	100	0%	34	0	0	0%	N/A	0	0	0%	N/A	1	0000
A47	1	1	100	0%	51	0	0	0%	N/A	0	0	0%	N/A	1	0000
A95	1	0	0	0%	N/A	0	0	0%	N/A	1	100	0%	31	0	0000
B98	1	0	0	0%	N/A	0	0	0%	N/A	1	100	0%	63	0	0000
C37	1	0	0	0%	N/A	1	100	0%	57	0	0	0%	N/A	-1	0000
E70	1	0	0	0%	N/A	0	0	0%	N/A	1	100	0%	53	0	0000
D87	1	0	0	0%	N/A	0	0	0%	N/A	1	100	0%	34	0	0000
C18	1	0	0	0%	N/A	0	0	0%	N/A	1	100	0%	146	0	0000
D84	1	0	0	0%	N/A	0	0	0%	N/A	1	100	0%	82	0	0000
A90	1	0	0	0%	N/A	0	0	0%	N/A	1	100	0%	61	0	0000
C51	1	0	0	0%	N/A	0	0	0%	N/A	1	100	0%	37	0	0000
A18	1	0	0	0%	N/A	0	0	0%	N/A	1	100	0%	51	0	0000
D97	1	0	0	0%	N/A	0	0	0%	N/A	1	100	0%	71	0	0000
E16	1	0	0	0%	N/A	0	0	0%	N/A	1	100	0%	117	0	0000
A67	1	0	0	0%	N/A	0	0	0%	N/A	1	100	0%	55	0	0000
E05	1	0	0	0%	N/A	0	0	0%	N/A	1	100	0%	104	0	0000
E91	1	0	0	0%	N/A	0	0	0%	N/A	1	100	0%	91	0	0000
C54	1	0	0	0%	N/A	1	100	0%	31	0	0	0%	N/A	-1	0000
A58	1	0	0	0%	N/A	0	0	0%	N/A	1	100	0%	64	0	0000
A26	1	0	0	0%	N/A	0	0	0%	N/A	1	100	0%	70	0	0000

ECO Statistics.csv

Bibliography

• “Enciclopedia de aperturas de ajedrez.” Wikipedia, https://es.wikipedia.org/wiki/Enciclopedia_de_aperturas_de_ajedrez
• “First-move advantage in chess.” Wikipedia, https://en.wikipedia.org/wiki/First-move_advantage_in_chess
• “Sicilian Defence.” Wikipedia, https://en.wikipedia.org/wiki/Sicilian_Defence
• “Top 5 White Openings by Win Rate.” Chess.com, https://www.chess.com/blog/TVLAVIN/top-5-white-openings-by-win-rate

Note: The statistical data presented is based on analyses from reputable chess databases and publications.