E97j — King’s Indian: Mar del Plata, Bayonet Attack, 9…a5 10.Ba3

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.b4 a5 10.Ba3 * ● Trait aux Noirs

Ouverture — Centre fermé

♔ Point de vue Blancs

8 7 6 5 4 3 2 1

abcdefgh

Avantages : case forte b5, case forte d5, paire de fous.
Faiblesses adverses : arriéré f7, Bg7 enfermé, Bc8 enfermé.
Problèmes : Be2 enfermé, Ba3 enfermé.
Plans :
● h3 — Empêcher ...Bg4

♚ Point de vue Noirs

1 2 3 4 5 6 7 8

hgfedcba

Avantages : case forte g4, paire de fous.
Faiblesses adverses : Be2 enfermé, Ba3 enfermé.
Problèmes : Bg7 enfermé, Bc8 enfermé, arriéré f7.
Plans :
● ...Bg4 — Développer Bc8, clouer Nf3
● ...c6 — Rupture
● ...c5 — Rupture

Avantages

Faiblesses adverses

Diagonale active

Plans

Structure de pions

E97j — Mar del Plata Bayonet Attack

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.b4 a5 10.Ba3

Eval: [+0.43]

Les coups candidats

10…axb4 — 58.6% (1696 parties) →

Ambassadeurs : Van Wely, Loek (10x), Sokolov, Ivan (8x), Roeder, Matthias (7x), Epishin, Vladimir (6x), Savchenko, Stanislav (6x), Behm, Simon (6x), Nyback, Tomi (6x), Veingold, Aleksandr (6x)

10…b6 — 16.3% (472 parties)

Ambassadeurs : Djukic, Nikola (9x), Lanka, Zigurds (8x), Smirin, Ilia (8x), Van Wely, Loek (7x), Strautins, Vilnis (7x), Milde, Lars (7x), Ye, Jiangchuan (4x), Socko, Bartosz (4x)

10…Nd7 — 13.8% (399 parties)

Ambassadeurs : Schebler, Gerhard (7x), Wan, Yunguo (7x), Rózanski, Robert (6x), Jenni, Florian (5x), Pascua, Haridas (4x), Valdes Romero, Leonardo (4x), Veingold, Aleksandr (3x), Mikhalevski, Victor (3x)

10…Nh5 — 6.7% (194 parties)

Ambassadeurs : Hillarp Persson, Tiger (7x), Shen, Yang (4x), Zhang, Xiaowen (4x), Nunn, John D M (3x), Hagarova, Zuzana (3x), Veingold, Aleksandr (3x), Banikas, Hristos (3x), Taimanov, Mark (2x)

Analyse statistique des coups candidats

Répartition par niveau Elo (% des parties)

Tranche Elo	N parties	10…axb4	10…b6	10…Nd7	10…Nh5
<1800	48	65%	15%	12%	4%
1800-2200	923	60%	15%	14%	6%
2200-2600	1546	57%	17%	14%	7%
2600+	75	35%	40%	12%	11%

Évolution par décennie (% des parties)

Décennie	N parties	10…axb4	10…b6	10…Nd7	10…Nh5
1950s	13	54%	8%	23%	15%
1960s	8	62%	—	25%	—
1970s	4	100%	—	—	—
1980s	8	75%	—	12%	12%
1990s	499	64%	6%	18%	8%
2000s	1192	57%	17%	14%	8%
2010s	994	58%	20%	12%	5%
2020s	175	57%	27%	9%	1%

Tendances récentes (2010s → 2020s)

Coup	2010s	2020s	Δ
10…axb4	58%	57%	▼ -1.0%
10…b6	20%	27%	▲ +7.8%
10…Nd7	12%	9%	▼ -3.0%
10…Nh5	5%	1%	▼ -3.8%

Joueurs célèbres

Champions du monde dans cette position

Kramnik, Vladimir — 7 parties
Kasparov, Garry — 2 parties
Anand, Viswanathan — 2 parties
Ju, Wenjun — 2 parties
Carlsen, Magnus — 2 parties
Euwe, Max — 1 partie
Ding, Liren — 1 partie

Parties historiques

10…axb4 — 58.6% (1696 parties)

1955 — Kevitz, Alexander vs Pinkus, Albert — 1/2-1/2 — New York, NY USA
1957 — Reshevsky, Samuel vs Yanofsky, Daniel Abraham — 1/2-1/2 — Dallas, TX USA
1958 — Borisenko, Georgy K vs Gurgenidze, Bukhuti — 0-1 — Rostov on Don
1958 — Cherubim, Reinhard vs Kerje, Allert — 1-0 — Hastings ENG
1958 — Van Scheltinga, Theo vs Euwe, Max — 1/2-1/2 — Beverwijk NED

10…b6 — 16.3% (472 parties)

1957 — Teschner, Rudolf vs Clarke, Peter-Hans — 1/2-1/2 — Wageningen NED
1992 — Steinbacher, Matthias, Dr. vs Bjerring, Kai — 0-1 — Copenhagen DEN
1995 — Postl, Anton vs Neulinger, Manfred — 1/2-1/2 — Austria Tch 9495
1995 — Koenig, Bernhard vs Moldawskij, Boris — 1-0 — Bayernliga 1995/96
1996 — Iskusnyh, Sergei vs Zaitsev, Igor A — 1-0 — Moscow RUS

10…Nd7 — 13.8% (399 parties)

1957 — Bronstein, David I vs Robatsch, Karl — 1/2-1/2 — It Gotha GER
1959 — Fedorovsky, Rafael vs Kampelmacher, M — 1/2-1/2 — Buenos Aires ARG
1959 — Minev, Nikolay N vs Gromek, Jozef — 0-1 — Marianske Lazne
1961 — Tolush, Alexander V vs Grabczewski, Romuald — 0-1 — Warsaw POL
1967 — Kalinski, Igor A vs Volynets, I. — 1-0 — Kiev UKR

10…Nh5 — 6.7% (194 parties)

1956 — Taimanov, Mark vs Ciocaltea, Victor — 1-0 — Moscow RUS
1956 — Taimanov, Mark vs Ciocaltea, Victor — 1-0 — Moscow RUS
1986 — Bykhovsky, Anatoly A vs Seredenko, Vladimir — 1-0 — URS-ch sf Lviv UKR
1990 — Corral Blanco, Juan Antonio vs Brito Garcia, Alfredo — 1/2-1/2 — ?
1992 — Tabatadze, Tamaz vs Novik, Maxim — 1-0 — Bratislava SVK

	♔ Blancs	♚ Noirs
Pions doublés	—	—
Pions isolés	—	—
Arriérés	—	● f7
Chaînes	● c4→d5, e4→d5	● d6→e5, c7→d6, f7→g6, h7→g6
Passés	—	—
Majorité	—	—

Cases

	♔ Blancs	♚ Noirs
Cases fortes	● b5 (2v0), ● d5 (4v2)	● g4 (2v0)
Cases faibles	—	—
Centre	● d4 (2v1), ● d5 (4v2)	—

Colonnes et diagonales

♔ Blancs

♚ Noirs

Pièces

	♔ Blancs	♚ Noirs
Be2	● Be2 Enfermé (mob. 1)
Ba3	● Ba3 Enfermé (mob. 2)
Bg7		● Bg7 Enfermé (mob. 2)
Bc8		● Bc8 Non développé (mob. 5)
Paire de fous	● Oui	● Oui
Non développées	1 (a1)	2 (c8, a8)

Sécurité du roi

	♔ Blancs	♚ Noirs
Statut	● Roqué	● Roqué
Droits de roque	—	—

Thèmes

	♔ Blancs	♚ Noirs
Phase	Ouverture
Centre	fermé
Ruptures	● c4-c5	● …c7-c6, ● …c7-c5

Partie
1956 Alekhine Memorial – Round ? – Taimanov, Mark E – 1-0 – Ciocaltea, Victor – G98 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Be2 O-O 6. Nf3 e5 7. O-O Nc6 8. d5 Ne7 9. b4 a5 10. Ba3 Nh5
1956 Moscow – Round 1 – Taimanov, Mark E – 1-0 – Ciocaltea, Victor – G8 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. b4 a5 10. Ba3 Nh5
1957 Wageningen zt – Round 5 – Teschner, Rudolf – 1/2-1/2 – Clarke, Peter-Hans – G14 1. d4 Nf6 2. c4 d6 3. Nc3 g6 4. e4 Bg7 5. Be2 e5 6. Nf3 O-O 7. O-O Nc6 8. d5 Ne7 9. b4 a5 10. Ba3 b6
1959 Marianske Lazne – Round 5 – Minev, Nikolay N – 0-1 – Gromek, Jozef – G35 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. Be2 O-O 6. Nf3 e5 7. O-O Nc6 8. d5 Ne7 9. b4 a5 10. Ba3 Nd7
1961 Warsaw – Round ? – Tolush, Alexander V – 0-1 – Grabczewski, Romuald – G87 1. Nf3 g6 2. d4 Nf6 3. c4 Bg7 4. Nc3 O-O 5. e4 d6 6. Be2 e5 7. O-O Nc6 8. d5 Ne7 9. b4 a5 10. Ba3 Nd7
1965 Buenos Aires – Round 3 – Najdorf, Miguel – 1/2-1/2 – Cruz, Raul C. – G24 1. c4 Nf6 2. Nf3 g6 3. d4 Bg7 4. Nc3 O-O 5. e4 d6 6. Be2 e5 7. O-O Nc6 8. d5 Ne7 9. b4 a5 10. Ba3 Ne8
Amber Rapidplay 2000 – Round 9 – Van Wely, Loek – 1-0 – Topalov, Veselin – G43 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. b4 a5 10. Ba3 b6
Dos Hermanas 1997 – Round 9 – Anand, Viswanathan – 1-0 – Polgar, Judit – G35 1. Nf3 Nf6 2. c4 g6 3. Nc3 Bg7 4. e4 d6 5. d4 O-O 6. Be2 e5 7. O-O Nc6 8. d5 Ne7 9. b4 a5 10. Ba3 b6
European Club Cup 2015 – Round 2.4 – Pelletier, Yannick – 1-0 – Nakamura, Hikaru – G29 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. b4 a5 10. Ba3 b6
FIDE WCh KO 2001 – Round 3.1 – Van Wely, Loek – 0-1 – Ye, Jiangchuan – G252 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. b4 a5 10. Ba3 b6
FIDE WCh KO 2001 – Round 4.1 – Ivanchuk, Vasyl – 1-0 – Ye, Jiangchuan – G293 1. d4 Nf6 2. c4 g6 3. Nc3 Bg7 4. Nf3 O-O 5. e4 d6 6. Be2 e5 7. O-O Nc6 8. d5 Ne7 9. b4 a5 10. Ba3 b6